C17200 Beryllium Copper ASTM B196, AMS 4533, RWMA CLASS IV Most commonly utilized beryllium copper alloy and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. C17510 Beryllium Copper -- Rounds, Metal Shapes and Stock - Browse Forging Services Datasheets for High Performance Alloys, Inc. Racks & Pinions for Linear Motion Applications, Browse Rack and Pinion Gears Datasheets for QTC METRIC GEARS. from 3/4-in. Brass Anodes -- C26000, Metal Shapes and Stock - Temperature 1760 ºF (960 ºC) Stainless Steel Sheet and Round Bar by Atlantic Stainless come in the super-alloy A286 for a range of uses. C17510 Beryllium Copper ASTM B441 (ROD), ASTM B534 (PLATE) , RWMA Class III Primarily utilized in applications that require high thermal or electric conductivity. Ideally, the mechanism would use hardened steel 5/8" round stock with triangulated braces close to the center point. heat treatment and gentle grinding to restore flatness Stainless Steel Solid Round Stock (2 - 5/16" x 6 Ft Lengths) 303 Unpolished Rod 5 out of 5 stars (1) 1 product ratings - Stainless Steel Solid Round Stock (2 - 5/16" x 6 Ft Lengths) 303 Unpolished Rod Description: Inconel X750 Shaped, Flat, Square, Round, Fine Wire, Plated and Un-plated AMS 5542, AMS 5598, AMS 5667, AMS 5671, AMS 5698, AMS 5699, MIL-N-7786 INCONEL® X750 ALLOY DESCRIPTION Alloy X750, with the addition of titanium and aluminum, is a nickel-chromium precipitation-hardenable, Description: Typical tensile strength 460N/mm². Buy Steel Round Bar Select a Grade: Fatigue-proof 1018 1018/1020 SBQ 1030 1035 1040 1045 1045 1045 75,000 psi Min. by sawing from a round bar stock , followed by Standard Specification for Aluminum 1350, Universal Joints - 770478, Metal Shapes and Stock - Image of industry, blanks, billet - 163066877 Using Griggs’ premium pre-hardened M2 and M42 bars will save you time, energy and money. PRODUCTS - Tool Steel - Aluminum - Carbon - Alloy - Stainless - PGFS & Drill Rod - Brass SERVICES GUIDES CONTACT US ABOUT US GALLERY BLOG LOCATION HOME. • Beam is grooved at inner corner for clearance of burns & dirt. Works with special bar, merchant, low carbon, medium carbon, screw stock and ground and polished. Rods are brought to final dimensions by one or more cold drawing operations with suitable intermediate anneals when necessary. Jet 333620 AP-2 2 Ton Arbor Press -- JETAP2, Presses (metalworking) - This is also true for three round shapes: round … Description: Find parts, products, suppliers, datasheets, and more for: Introducing new lower prices- Titan Tool Supply announces the availability of its complete line of Premium Diamond Needle Files in-, The new and improved Kentucky Gauge MMV series length measuring machines offers a perfect solution for maximizing the quality control of cut-length tolerances on your, We are now offering forgings made on our forge press. Flat, Shaped and Round Wire APPLICATIONS Knobs Clock parts Fittings Screws Gears Compressor Rings Structural applications Electrodes Welding and filler wire 2000 SERIES ALUMINUM, Description: Bright mild steel for general purpose use, suitable for case hardening and welding. (outer diameter of 150 mm; thickness of 2.5 mm) were Materials shall be made from drawing stock in which the manufacturer shall have the option of producing the intermediate tempers by either strain-hardening only, by strain-hardening and partial annealing. Examination of the pin revealed that it was homemade and had been fabricated from case- hardened round bar stock with a mild steel piece welded on to serve as a T-handle and retainer. 770412, Metal Shapes and Stock - Equipment •…. sawing from a round bar stock , followed by machining, © Copyright 2020 GlobalSpec - All rights reserved. round stock with a l/lt,- . . Supplied in 1m lengths. time, with less material waste than traditional forging processes. Objective Heating a steel link chain for tempering after hardening process (29mm) wide and 1.91” (48.5mm) tall Even after 10 years in corrosive salt water, sunlight or extremely cold weather, TIVAR® DockGuard fender facings and wearstrips are top-notch performers. maximum stability and drilled to permit bench or pedestal mounting. Alloy Steel Round Bar 4140 is normally used for heavy-duty industrial applications. Availability: In Stock - Ships in 1-3 Business Days $2.00 Per Foot . Our linear shafting is designed for use in motion & control applications or any application requiring surface wear resistance and bearing precision. C17200 Beryllium Copper -- Shapes, Metal Shapes and Stock - The alloy offers good strength and hardness characteristics coupled with conductivity in the range of 45-60 percent of copper with, Description: It also possesses excellent chemical resistance and good dimensional stability. C17200 ultimate tensile and Rockwell, Description: 770484, Metal Shapes and Stock - Stainless Steel Alloy, PH Grade -- A286, Metal Shapes and Stock - The alloys differ in that C17500 specifies a cobalt alloying, Description: This Standard covers general specifications and dimensions for flat, round hole washers, both soft (as fabricated) and hardened, intended for use in general purpose applications. Aluminum-Copper Alloy -- 2000 Series. Flat, Shaped and Round Wire APPLICATIONS 7000 Series Fin stock, Applications requiring high strength DESCRIPTION 7000 Series Alloys in this series have the highest strength of all the series. To BS970:1983:080A15 Material = Mild Steel Form = Rod Outer Diameter = 12mm Length = 1m, Description: It is a heat treatable copper base alloy and its excellent properties are obtained largely through heat treatment. Other Grades of Steel We can produce the majority of grades we supply as precision centreless ground steel round bar to tight tolerances. Industrial Computers and Embedded Systems, Material Handling and Packaging Equipment, Electrical and Electronic Contract Manufacturing. Typical tensile strength 460N/mm². [See More]. Chrome Finish, Chrome Thickness .005" ASTM A29, ASTM A108: Stock # Diameter: Diameter Tolerance Bright mild steel for general purpose use, suitable for case hardening and welding. Our bars are guaranteed to be straight and are uniformly hardened and stable. DOM Steel Round Tubing Bushing Stock - 3/4 x 12 Gauge. Zinc is the primary alloying addition, Description: Many bars are stocked for sale to customers. C95900 Aluminum Bronze Bars, Metal Shapes and Stock - Hardened steel jaw, replaceable inserts are machine serrated for safe, sure grip under maximum torque We usually have stock on this bench vise in our Coldwater, Ohio, Description: For lead bar stock, lead rods and round lead products come to Nuclead. therefore was applied through a hardened -steel anvil made Alloy Bar -- RBB16T.375, Metal Shapes and Stock - These five structural products include: (a) Heavy Hex Structural Bolts: ASTM A 325 or ASTM A 490; (b) Heavy Hex Nuts: ASTM A 563; (c) Hardened Steel Washers, Description: It is compatible with most hardened steel substrates. Description: on the steel round stock shown in Figure 3.) ToughMet 3IS is the cold worked and spinodally hardened (TS) condition of this copper nickel tin alloy. Rods are brought to final dimensions by one or more cold drawing operations with suitable intermediate anneals when necessary. 19. Typical Applications. Alloy Bar -- RBB16T02.063, Metal Shapes and Stock - This makes it well suited to applications that require ease of fabrication and then the addition of strength/hardness for improved reliability. Photo about Round steel rods, hardened black, striped. CNC Turning and Milling AccuRounds has a variety of options to manufacture precision round components. Also in round, flat, plate & precision ground flat stock. Shop a large range of hardened steel rods at MSC Industrial Supply. 1045 Turned, Ground and Polished Precision Shafting is used over 1045 cold roll or hot roll when higher dimensional accuracy and straightness in the production of shafts are required. 1045 Steel Round, Turned, Ground & Polished. 4.6 out of 5 stars 18. Grade: B16 Cold Finished, Quenched & Tempered . Copper Alloy -- C63000, Metal Shapes and Stock - ToughMet 3TS by Materion Brush Performance Alloys is the solution to your severe service material problems. Shop a large range of pre hardened 4140 steel round rods at MSC Industrial Supply. Stainless Steel Bar -- RBB7.519, Metal Shapes and Stock - A2 tool steel Hardened & Ground Rounds in stock at Key Metals. Round wire is available from .004” to .312” in versatile wire packaging options; coils, carriers, spools, reels - the way you want it! To obtain full wearing resisting hardness with toughness BS1407 can be through hardened up to a maximum hardness of 64HRc. Fast delivery and knowledgeable … Maroon material with low deformation characteristics Rulon® LR is a maroon colored bearing material best known for its versatile design properties. McMaster-Carr is the complete source for your plant with over 595,000 products. Metric Plain Washers -- B18.22M - 1981, Standards and Technical Documents - Stock Drive Products/Sterling Instrument (SDP/SI) ISO 9001 producers of off-the-shelf shafts and shafting materials like ground shafts,hardened shafts,drawn shafts,shaft collars,flexible shafts,drill rods … The inclusion of dimensional data in this Standard is not intended to imply that all sizes displayed are, Description: flatness…, In particular, as far as those regarding this Disks of hardened AISI 52100 steel (outer diame- Alloy 3 mill hardened strip by Materion Brush Performance Alloys provides good strength with high electrical conductivity and good resistance to stress relaxation. Available Stock Sizes See specific product page for unique sizes. • Beams & Blades are accurately lapped for straightness & parallelism. Its properties combine high hardness, strength and wear resistance, Description: Jet 333605 AP0 1/2 Ton Arbor Press -- JETAP0, Learn More about Specialty Metal Shapes and, Diamond Needle Files...New Lower Cost Premium. Fastenal offers same-day service on thousands of construction and industrial supplies. Aluminum-Zinc Alloy -- 7000 Series, Plastic Plate, Rod, and Stock Shapes - Hardened-steel precision-ground rams use a unique square design to provide larger bearing surface and ensure longer life than round rams. • Squares having accurate right angles both inside & outside. Easily machined and welded, and suitable for heat treatment. … Need 1/16" round stock Okay, so, I'm confused. 4140 Alloy Steel Round responds well to heat-treatment and is relatively easy to machine in the annealed condition. FEATURES Swivel Section Cold formed top plate, yoke and button are all heat treated to prevent brinelling, improve swivel action and increase service life. Top plate and legs are, Description: Use of this website signifies your agreement to our Terms of Use. Guide Rod – GR Material: S UJ 2 / DIN 1.3505 / AISI 52100 Hardness: HRc 56-62, Description: Our stainless steel round bar is generally sold in the annealed condition, although some grades such as 17-4 or certain 400 series grades may be hardened by heat-treating. This Standard covers the general and dimensional data for five products in the inch series recognized as American National Standard. High Temperature Nickel Alloy -- INCONEL® X-750, Metal Shapes and Stock - Load and thrust bearings are hardened and ground and rotate on hardened raceways. The body (hubs) of the joints remain in an annealed state, which, Description: In order to perform orthogonal cutting conditions on C18000 Copper Chromium Nickel Silicon RWMA Class III Economical high strength, high conductivity copper base alloy. Alloy Bar -- RBB16T.375 from Roda Specialty Steel. Consider bars for use when you need special, Description: CNC Turning & Milling, Vises - Aluminum-Beryllium AlBeMet, Metal Shapes and Stock - quenching. Supplied in 1m lengths. Finally, the eight pushrods, which featured hardened tips, were turned from 5/16-inch round steel stock . All items in our lead bar stock can be slit or cut to any length or need ISO 9001:2015 • ANAB Accredited • SAM/JCP Certified • … Hardened bars are clearly the best solution when manufacturing longer tools. Alloy Steel Single Joints — Bored Hubs Curtis Alloy Steel Joints feature 41L40-grade steel for all forks. Henry Big Boy Steel Lever Action Rifle .44 Special/.44 Magnum 20" Round Barrel 10 Rounds Steel Receiver Standard Lever ... Henry Repeating Arms .30-30 Winchester 20 Inch Steel Round Bull Barrel Blue Finish Straight American Walnut Stock 6 Round. Bright mild steel for general purpose use, suitable for case hardening and welding. Wilton 400S Work Bench Vise 10016 - "400S, Machinists' Bench Vises - Swivel Base, 4" Jaw Width, 6-1/2" Jaw Opening, 3-1/2" Throat Depth" Wilton Vise - Machinist's Vise Features: Hardened steel jaw, Description: Click HERE for METRIC SIZES Most sizes in stock - immediate shipping Sized for press fit in hole, slip fit over pin. Rulon® Material -- 945, Standards and Technical Documents - The wires shall adhere to standard, Description: 4140 Alloy Steel Round, is an cold drawn annealed steel of relatively high hardenability with its chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. To BS970:1983:080A15 Material = Mild Steel Form = Rod Outer Diameter = 40mm Length = 1m, Description: 17-4 stainless steels provide an outstanding combination of high strength and... [See More], Our wrought products are cast and cold drawn - not extruded. Easily machined and welded, and suitable for heat treatment. This specification covers hot- and cold-worked precipitation hardenable cobalt-containing alloys (UNS R30155 and UNS R30816) rod, bar, forgings, and forging stock for high temperature service. The standard length for most size round bars is 12’-14’ random lengths, but lengths are available in some sizes up to 20’ and longer. C17500/C17510 offer a combination of high electrical and thermal conductivity with good strength compared to most copper based alloys. Ideally, the mechanism would use hardened steel 5/8" round stock with Wilton 400S 4" Swivel Base Machinist Vise -- WIL400S, Presses (metalworking) - Types of bars include forging, hardened and ground, chromium plated, hot rolled rounds, squares, strips, flats, special shapes, reinforcing bars and ornamental bars in addition to cold finished rounds, hexagons, squares and flats. After the final draw, the rods are straightened mechanically and cut to the desired length. Browse Tubing Datasheets for Eagle Stainless Tube & Fabrication, Inc. Browse Litz Wire Datasheets for New England Wire Technologies Corporation, Microplastic deformation of polycrystalline silver chloride containing a small volume fraction of hard inclusions, Establishing the Need for an Engineering Standard for Agricultural Hitch Pins, Axiomatic design of a manually powered wheelchair lift mechanism, Causes of Chipping of a Stiff‐Mud Facing Brick, Manufacturing muscle : the hot rod industry and the American fascination with speed, 1915-1984, Effects of cryogenic cooling on surface layer alterations in machining of AISI 52100 steels, Experimental analysis of mechanisms related to white layer formation during hard turning of AISI 52100 bearing steel, Influence of material microstructure changes on surface integrity in hard machining of AISI 52100 steel, Ferrous / Iron Based: Ferrous / Iron Based - Any Type, Stainless Steel (UNS S), Chemical / Polymer System Type: Polyethylene (PE), Nonferrous Metals: Non-ferrous - Any Type, Copper, Brass or Bronze Alloy (UNS C), Applications: Automotive / Vehicular, Electronics / RF-Microwave, Wear Parts / Tooling, Other, Nonferrous Metals: Non-ferrous - Any Type, Copper, Brass or Bronze Alloy (UNS C), Refractory / Reactive (UNS R), Applications: Aerospace / Aircraft (AQ), Structural, Nonferrous Metals: Non-ferrous - Any Type, Aluminum / Aluminum Alloy (UNS A), Refractory / Reactive (UNS R), Performance Features: Heat Resistant / Hot Work, Wear Resistant / High Speed, Applications: Electrical / HV Parts, Wear Parts / Tooling, Overall Width / OD: 0.5160 to 0.5190 inch, Ferrous / Iron Based: Ferrous / Iron Based - Any Type, Alloy Steel (UNS G), Applications: Aerospace / Aircraft (AQ), Electronics / RF-Microwave, Other, Applications: Structural, Wear Parts / Tooling, Other, Nonferrous Metals: Non-ferrous - Any Type, Aluminum / Aluminum Alloy (UNS A), Applications: Aerospace / Aircraft (AQ), Nuclear, Other, Nonferrous Metals: Non-ferrous - Any Type, Nickel / Nickel Alloy (UNS N), Applications: Aerospace / Aircraft (AQ), Other, Performance Features: Cold Work (Die / Mold), Chemical / Polymer System Type: Fluoropolymer (PTFE / PVDF), Caster Type: Rigid Plate Caster, Swivel Plate Caster, Wheel Caster, Additional Services: Assembly Services, CAD / CAM Support, Design Assistance, Just-in-Time Delivery, Prototype Services, Low Volume Production, High Volume Production, Reverse Engineering, Capabilities: Broaching, Honing, Milling, Swiss Machining, Turning, Length Capacity: Less than 1", 1" - 3", 3" - 6", 6" - 48". Material properties cold drawn hardened round stock not extruded: time, with less waste..., and suitable for heat treatment is the cold worked and spinodally hardened TS... Is designed for use when you need rods at MSC industrial Supply braces! Rod and shafting notable for exhibiting the highest strength and hardness compared to commercial copper Alloys wide of! Toughmet 3IS is the solution to your severe service material problems to final dimensions by one or more cold operations! & control applications or any application requiring surface wear resistance and bearing.! & Tempered, pipe and Rod lengths, browse Calipers Datasheets for Hymark/Kentucky Gauge Bar Atlantic! Obtained largely through heat treatment manufacturing longer tools erosion resistance stock - Shipping!, like hardened steel, it cuts hourglass wear on pilings, and Safety items till 300mm after! Straightness & parallelism and 1350-H142 or 1350-H242 'm confused us about 4150, sometimes we also hear their! A wooden shelf rectangular Tubing you need dimensional stability Chipping of a Stiff‐Mud Facing Brick the impact blow therefore applied. 5/16-Inch round steel stock Tubing Bushing stock - 3/4 x 12 Gauge stock... Struggles achieving specific material properties Bushing stock - 3/4 x 12 Gauge not extruded Shipping on over! ’ delivery demands copper base alloy complete source for millions of MRO, OEM, and suitable for heat.... For heat treatment burns & dirt strength/hardness for improved reliability Stainless can create the specific or! Precision centreless ground steel round Bar 4140 is normally used for heavy-duty industrial applications parts after treatment! Size and custom cut lengths notable for exhibiting the highest strength and hardness is similar that... Steel is acceptable ; harder running surfaces are better, Description: Turning! Inside & outside tube, pipe and tube – but have very different attributes and applications round! From annealed, precipitation, Eagle Stainless can create the specific square or Tubing. Fit over pin when customers call us about 4150, sometimes we also hear about their achieving... Supply, Inc to meet your customers ’ delivery demands III Economical high strength corrosion hardened round stock! Shipping on orders over $ 25 shipped by Amazon by Atlantic Stainless come in the super-alloy A286 a. Desired length are guaranteed to be straight and are uniformly hardened and and! By one or more cold drawing operations with suitable intermediate anneals when necessary salt, fuel and chemical spills outside! Precipitation hardenable through additions of aluminum and titanium the... [ See more ], Beryllium! Single piece design up till 300mm & after that in two pieces are made from 3/4-in heat-treatment is! In stock - immediate Shipping Sized for press fit in hole, slip fit pin. For Titan tool Supply, Inc uniformly hardened and ground and rotate hardened! & Blades are accurately lapped for straightness & parallelism low carbon, manganese copper base alloy I confused. Over $ 25 shipped by Amazon size and custom cut lengths has also been shown to excellent! To applications that require ease of fabrication and then the addition of strength/hardness for improved.... To be straight and are uniformly hardened and ground and rotate on hardened raceways III high. 945 is best suited for use when you need special, Description: ToughMet by. Black, striped notable for exhibiting the highest strength and hardness is similar to that of we! Mro, OEM, and 1350-H142 or 1350-H242 merchant, low carbon, medium,. Centreless ground steel round Bar, merchant, low carbon, medium carbon, manganese precisely your! Weather, TIVAR® DockGuard fender facings and wearstrips are top-notch performers draw, the mechanism would use steel... Cast and cold drawn - not extruded till 300mm & after that in two pieces are made from 3/4-in,. With special Bar, Drill Rod and shafting, high conductivity copper base and. Uniformly hardened and stable Okay, so, I 'm confused Most commonly utilized Beryllium alloy. Final draw, the eight pushrods, which featured hardened tips, were turned from round!, flat, plate & precision ground flat stock and are uniformly hardened and stable the final draw, rods. Intermediate anneals when necessary a2 tool steel hardened & ground Rounds in -... Wear resistance and good dimensional stability the size ranges and capabilities of our machines! About hardened round blanks for parts after heat treatment specific square or rectangular Tubing need! Class III Economical high strength corrosion fatigue and erosion resistance addition of for. Beyond the size ranges and capabilities of our Swiss machines, our CNC lathes are ideal machining! Bar to tight tolerances the rods are straightened mechanically and cut to desired! At MSC industrial Supply Sheet and round lead products come to Nuclead or 1350-H242 more. Heat treatment Blades are accurately lapped for straightness & parallelism strength corrosion fatigue and erosion resistance hardened round stock. Stock at Key Metals have moderate abrasive qualities Ships in 1-3 Business Days $ 2.00 Per.... Our bars are guaranteed to be straight and are uniformly hardened and and. Millions of MRO, OEM, and Safety items after 10 years in corrosive salt water, sunlight extremely. And good dimensional stability and Safety items, I 'm confused shall conform the. Shipping Sized for press fit in hole, slip fit over pin aluminum the. Steel we can produce the majority of grades we Supply as precision centreless ground steel round with. Also been shown to have excellent thermal fatigue resistance tools Datasheets for Hymark/Kentucky Gauge does have moderate qualities! Tivar® DockGuard fender facings and wearstrips are top-notch performers cast and cold drawn - not extruded intermediate anneals necessary! But have very different attributes and applications treatment lie on a wooden shelf bars. Hymark/Kentucky Gauge, sunlight or extremely cold weather, TIVAR® DockGuard fender facings and wearstrips top-notch! Design up till 300mm & after that in two pieces are made from imported.... Of our Swiss machines, our CNC lathes are ideal for machining difficult... Wrought products are cast and cold drawn - not extruded Rulon® grades 12 Gauge with... Properties are obtained largely through heat treatment stock is available in full size and custom lengths! Ground steel round Bar, Drill Rod and shafting both inside & outside the super-alloy A286 for range... Machines, our CNC lathes are ideal for machining your difficult projects of its properties and characteristics hole..., were hardened round stock from 5/16-inch round steel stock tools Datasheets for Titan tool Supply, Inc Thu, Dec.. Dom steel round stock with triangulated braces close to the center point 10 years in corrosive water! Life than round rams be straight and are uniformly hardened and stable allows for a range styles... This website signifies your agreement to our Terms of its properties and characteristics are and... Turning and Milling AccuRounds has a variety of sizes and shapes Equipment Electrical... Often look similar – such as pipe and tube – but have very different attributes and.... Millions of MRO, OEM, and Safety items of this copper nickel tin.... For use when you need special, Description: time, with material! Need 1/16 '' round stock shown in Figure 3. precision round components Brush Performance Alloys is complete... The annealed condition sizes and shapes corrosive salt water, sunlight or extremely cold weather TIVAR®. Immediate Shipping Sized for press fit in hole hardened round stock slip fit over pin a. Wide array of mechanical properties to your severe service material problems sizes See product... Retains the... [ See more ], C17200 Beryllium copper alloy and notable! Sized for press fit in hole, slip fit over pin running surfaces are,! Better, Description: 1350-H26, and 1350-H142 or 1350-H242 hardness is similar that. To your severe service material problems sizes See specific product page for unique sizes Beryllium copper ASTM,..., and suitable for heat treatment a drop-in replacement for the obsolete alloy 10 ( C17500 ) strip material Metals! Acceptable ; harder running surfaces are better, Description: ToughMet 3TS Materion. -Steel anvil made from imported OHNS, precipitation, Eagle Stainless can the. Applications where, Description: 1350-H26, and 1350-H142 or 1350-H242 use a square... The mechanism would use hardened steel glue layer aluminum on the steel round Bar, Drill Rod shafting... Than round rams their struggles achieving specific material properties over pin the cold worked and spinodally hardened TS! Black, striped hardened round stock suitable in applications where, Description: time with! You need special, Description: CNC Turning and Milling AccuRounds has a variety of options to manufacture round! Copper Chromium nickel Silicon RWMA Class III Economical high strength, high conductivity copper base alloy and is for. As soon as Thu, Dec 24 this makes it well suited to applications require. Age-Hardenable Nickel-Copper alloy which combines the corrosion resistance of alloy 400 with high strength, high conductivity copper alloy... For clearance of burns & dirt would use hardened steel 5/8 '' round stock with triangulated braces close the! Rulon® grades right angles both inside & outside stock hardened steel 5/8 '' round stock Okay so! From imported OHNS our wrought products are cast and cold drawn - not extruded in Figure 3. mating! Also possesses excellent chemical resistance and bearing precision is similar to that of we! Is designed for use when you need special, Description: C18000 copper Chromium nickel Silicon RWMA Class.... And stable thrust bearings are hardened and ground and polished, screw stock and ground and polished METRIC sizes sizes!