West Yorkshire Steel Co Ltd


Steel specifications are produced to various National and International standards. We can help with those hard to find steel specifications and grades, such as BS EN ISO 4957 tool steel and special steel. If you are unable to find the steel grade you require on our web site then please contact our sales team for help and guidance. British Standard grades are supplied to BS970 BS4659 BS EN 10028 10025 10083. International Standard specifications to American AISI UNS SAE and other national standard steel specs including AFNOR DIN UNI JIS SS UNE Euronorm EN.

Tool Steel

Comprehensive stocks of Tool Steel grades, suitable for cold work, hot work, and plastic mould applications. Ground tool steel products include Silver Steel and Ground Flat Stock. Tool Steel is supplied to European Standards such as DIN Tool Steel Specifications and Werkstoff Steel Specifications. Tool Steel grades are held to British European and International (including American AISI) standard steel specifications. BS4659 tool steel grades stocked include BO1, BD2, BD3, BH13, BA2, BS1, BP20, and also BM2, BM35 and BM42 high speed steel specifications. AISI grades are O1, D2, D3, D6, H13, A2, S1, P20, P20 + Sulphur and 420. High Speed Steel specifications include M2, M35 and M42. Din and Werkstoff steel specifications includeHS6-5-2C 1.3343, SC6-5-2, X155CrVMo12 1, 1.2379 X210Cr12 1.2080 X210CrW12 1.2436 X40CrMoV5 1 1.2344 X45NiCrMo4 1.2767 90MnCrV8 1.2842 S2-10-1-8 1.3247 S6-5-2 1.3343 40CrMnMoS86 1.2312 60WCrV7 1.2550 X153CMoV12 1.2379 X210Cr12 1.2080 X40Cr14 1.2083 1.2085 1.2316 1.2343 1.2363 1.2714 1.2738 to DIN classification DIN 17350. Tool Steel and High Speed Steel is stocked in round bar, flat bar and plate. Some specifications are stocked in block which we can bandsaw to you specific requirements. Hot Work Tool Steel, Cold Work Tool Steel and Plastic Mould Tool Steel. With a large tool steel data base we can help with hard to find tool steel grades and specifications.

Tool Steel

Key Steel

Available in metric and imperial sizes. Key Steel is stocked in 10 ft / 3 m bar lengths in the standard key steel size range.

Super Duplex Stainless

Super Duplex Stainless Steel grade UNS S32760, F55 is available from stock in round bar.

Cast Iron

Stocks are held in continuous cast iron bar.  Cast Iron round bar and cast iron flat plate can be supplied in full lengths or cut to your requirements.  Cast Iron grades stocked include BS2789 420/7 600/7, BS1452 Grade 220, 250, 260, Spheroidal Graphite Iron SG Iron Meehanite and Grey Iron.

Cast Iron

High Speed Steel Tool Bits

High Speed Steel are available in  M2 Tool Bits and M42 Tool Bits grades.  Stocks are held in up to 8" lengths - non standard sizes can be produced. Squares  are supplied with bevelled ends, rounds are supplied with square ends, rectangular  tool bits are supplied with square ends.

Duplex Stainless

Duplex stainless grade UNS S31803, F51, 1.4462 is available from stock in round bar.

Ground Flat Stock

Tool Steel can be supplied to European Standards such as Werkstoff and DIN Specifications. We also supply to AISI steel grades and AISI equivalent grades.  We stock O1 gauge plate / ground flat stock which can also be produced in other grades (such as D2 ground flat stock) to your required sizes.

Ground Flat Stock

Engineering Steel

West Yorkshire Steel Co Ltd are suppliers of engineering steel grades round bar, flat bar and steel plate. We have a wealth of experience in supplying engineering steel specifications. Engineering steel grades are  also available as Precision Ground Bar . As engineering steel, carbon steel and alloy steel stockholders our stocks include the following steel grades 070M20 070M55 080M15 080M40 080M50 1.1213 220M07 230M07 C35 C45 C50 C55 EN1A leaded EN1A steel EN3 Steel EN6 EN8 Steel EN8D EN8DM EN9 Carbon SteelEN9 Steel X120Mn12 bs 1501 224 490 bs 970 070 bs 970 080 bs1501 161 430a bs4360 43a en32 steel en32b steel en8 bar en8 carbon en8 flat en8 material en8 plate en9 material steel alloy 1040 35NCD16 4130 steel 4130 steel suppliers 4130 steel tube 4130 steel tubing 4130 tube 4140 4140 alloy steel 4140 carbon steel 4140 material 4140 steel 4140 steel specification 4140 steel specs 4145 Steel 4145 alloy 4145 material 4150 alloy steel 41Cr4 41CrMo4 4330 4330 steel 4330V 605M36 655M13 708M40 709M40 722M24 722M24T 735A50 817M40 817M40T 817m40 steel 826 M40 826M40 835M30 8620 905M31 AISI 4140 AISI 4140 steel AISI 4145 AISI 4145 steel BS970 817M40 BS970 817M40T EN16 EN16T EN19 EN19T EN24 EN24 steel EN24T EN24T steel EN26 EN26W EN30B EN34 EN36 EN40 EN40B EN40C EN40T EN41 EN41A EN41B SAE 4140 SAE 4140 steel SAE 8620 SAE 8620H SAE Steel SAE8620 SAE8620H BS 817M40 BS 970 817M40 EN16 steel EN16t steel EN24 material steel grade 4140

Manganese Steel

We are also steel suppliers of austenitic 11 to 14% High Manganese Steel, X120Mn12 a work hardening steel grade. X120Mn12 is suitable for wear applications where high impact and gouging abrasion gives a work hardening effect.  Cut pieces of X120Mn12 manganese steel plate can be supplied plasma cut.

Spring Steel

Spring steel is held in a wide range of sizes. Carbon steel strip and spring steel sheet is held on stock; available hardened and tempered orannealed  We also stock round and flat bar spring steel.  Spring temper rolled stainless spring steel strip grade 301, an austenitic stainless steel is also available. Shim steel is also stocked in grade BS1449 CS4.

As spring steel stockholders and suppliers our stock range include the following spring steel specifications 1.8159 1.8519 1095 31CrMoV9 50CrV4 51CrV4 55Si7 AISI 6150 CS 80 CS100 CS70 sheet spring steel CS80 CS95 EN45 EN43 EN43A EN43B EN43D EN45 EN47 

Spring Steel

Carbon Steel

Carbon Steel specifications are held in British, European and American specifications.  We stock carbon steel in round bar, flat bar and carbon steel plate.  We can offer flame cut (and machined or ground if required) pieces in grades EN8 and EN9 and other carbon steel grades.

European and American specifications stocked include the following grades C45, C50, C55, C60, 1.0503, 1.0540, 1.0535, 1.0601, AISI 1045 1050 1055 1060.

Medium carbon steel grades have a good balance of ductility and strength when heat treated. Typical applications for medium carbon steel specifications at approximately 0.4% carbon  include bolts, rods, crankshafts, and tubings in the automotive industry. Axles, gears, and components that require higher hardness and wear resistance are frequently made of 0.5% carbon steel grades

Carbon Steel

Carbon & Alloy Steel Specifications

EN1A EN3 EN8 EN9 EN19 EN24 EN30B EN32 EN36 EN40 EN41 EN45 EN47
230M07 070M20 080M40 070M55 709M40 817M40 835M30 655M36 722M24 251A58 50CrV4 Carbon Steel BS970 EN1A 230M07 SMn28 1.07159 EN3 070M20 1.0402 C22 EN8 080M40 1.0511 1730 C40 C45 Key Steel BS46 BS4235 EN9 070M55 080A52 080A42 080A57 1.0535 C50 C55 EN32 080M15 1.0401 C15 EN10025 S275 C22E Flame Cut Lumsden Precision Ground BS4360 43A Alloy Steel EN19T 709M40 708M40 42CrMo4 AISI SAE 4130 4140 4145 1.7225 8620 8620H EN24T EN26 817M40T 34CrNiMo6 4340 1.6582 KE805 EN30B 835M30 30NiCrMo16-6 1.6747 35NCD16 EN36 KE169 655M13 14NiCr14 1.5752 KE169 EN40BT 722M24T 32CrMo12 1.7361 EN41B 905M31 905M39 41CrAlMo7 75CR1 EN19 EN24 10083 Spring Steel Blued EN43 EN 45 251A58 EN47 250A58 BS1449 CS70 CS80 CS100 CS95 1095 1050 1060 1070 Shim Hardened Tempered Annealed Cast Iron BS1452 Grade 250 260 17 420/12 BS2789 SG Grey 1.0507 904L Case Hardening Steel Through Hardening Steel Nitriding Steel Die Steel EN43A EN43B EN43C 080M46 SG Iron Manganese Steel 

Stainless Steel Specifications

17/4PH Duplex 31803 F51 310 316 304 321 303 410 416 420 431 Stainless Steel Martensitic Austenitic Feritic 17/4PH 17-4PH ASTM A564 Grade 630 Condition A H1150+H1150 H1150M H900 UNS S17400 15/5PH 420S29 420S37 254SMO FV520B X42CR13 420S45 1.4021 1.4024 1.4028 1.4034 416S21 410S21 43S29 304 304L 303 304 316 316S31 321S31 440C 440B Stainless 310 Stainless  Duplex F51 1.4462 S31803 F55 1.4501 S32760 AISI 440B 440C A276 A182 1.4057 1.40051.4112 1.4006 3Cr12 1.4003 1.4845 1.4305 1.4306 1.4301 1.4404 EN58AN EN58 EN58E EN58J EN58AM EN56 EN56A EN56AM EN56B EN56C EN56D EN57 KE40A Custom 455 AMS 5643 254SMO Titanium 6AL 4V Plasma Cut Aluminium Bronze CA104 Nickel Alloys Monel 400 K500 Incoloy Alloy 825 925 800HT Inconel 625 725 718 601 660 A286 Non Ferrous Brass Aluminium Copper 904L

Stainless Steel Specifications

Tool Steel Specifications

O1 D2 D3 D6 H13 M2 M42 High Speed Steel P20 1.2767 BS1407 Tool Steel BS4659 O1 1.2510 KE672 D2 1.2379 KEA180 D6 1.2436 1.2842 tool steel O2 D3 1.2080 KE970 H13 1.2344 KEA145 M2 1.3247 1.3343 S1 1.2542 KE960 1.2550 A2 1.2363 KEA162 P20 1.2311 1.2312 P20S 1.2738 2767 1.2767 KE355 HCNC IBD IP20ID1 ICW IMV KE896 BS1407 Silver Steel Ground Flat Stock Gauge Plate W1 W2 1.2833 ROYALLOY ULTRACHEM Spring Steel EN42 EN45 EN47 High Speed Steel T1 T4 M42 M35 Toolbits Carbide Flame Cut Plate Key Steel EN6 Cast Iron Yield NSOH Carbon Chromium Werkstoff Din Euronorm BS ASTM AISI ESR BS EN ISO 4957 VPN Rockwell Brinell Tonnes Tensile

High Speed Steel

Stockists of high speed steel specifications M2  M35 and M42. High speed steel grades are often used in the manufacture saw blades and drill bits. A High Speed Steel grade has more advantages to the common high carbon tool steel types. High Speed Steel grades to withstand increases in temperature without losing their temper. High Speed Steel grades can cut faster than high carbon tool steel, hence the name high speed steel.

AISI Steel

Stocks of round bar are available in AISI 4130, AISI 4140  AISI 4145 and AISI 4330.

Stainless Steel

Stainless Steel stockists of precipitation hardening 17/4PH FV520B, Duplex and Super Duplex grades and austenitic, martensitic and feritic specifications. Other grades of stainless steel held on stock include 1.4003 1.4006 1.4021 1.4028 1.4034 1.4057 1.4112 1.4305 1.4306 1.4401 1.4404 1.4435 1.4462 1.4541 1.4542 1.4845 17 4 steel 17-4 PH 17-4PH Condition A 17-4PH H1150 17-4PH H900 17.4PH 17/4PH 2205 2507 254 SMO 254SMO 310 31254 31CrMoV9 32760 3CR12 420 S29 420 S37 420 ss 420S29 420S37 420S45 431 431 S29 440 440B 440C EN10025 EN10025-2 EN10025-3 EN10025-5 EN10025-6 EN10083-3 EN10084 EN10085 EN56 EN56A EN56AM EN56C EN57 EN58 EN58A EN58B EN58E EN58F F51 Duplex F55 Super Duplex F520 V520B S7400 S1254 S2750 S2760 US420J2 UN 31803 UNS 32760
UNS 31254 UNS S31803 Duplex UNS S32760 super duplex UNS31254 UNS31803 UNS32760 UNSS31254 X22CrNi17 X30Cr13 X40Cr13 X5NiCrTi2615 X90CrMoV18 A182 f51 A182 f55 S32205

Stainless Steel

Alloy Steel

Alloy Steel Specifications are held on stock in steel round bar, steel flat bar and steel plate. Grades are held in European, International and British Standard BS970 specifications. EN24 is held on stock in round bar and flats can be produced from block or cut from EN24 plate. As alloy steel suppliers we supply a wide range of grades in round bar, flat bar and steel plate.  Excellent services in supplying alloy steel specifications. Alloy steel grades are  available in black, hot rolled, bright, cold drawn and precision ground bar. Some alloy steel specifications are available in plate and block. As alloy steel stockholders our stocks include the following steel grades 4330 4330 steel 4330V 605M36 655M13 708M40 709M40 722M24 722M24T 735A50 817M40 817M40T 817m40 steel 826 M40 826M40 835M30 8620 905M31 AISI 4140 AISI 4140 steel AISI 4145 AISI 4145 steel BS970 817M40 BS970 817M40T EN16 EN16T EN19 EN19T EN24 EN24 steel EN24T EN24T steel EN26 EN26W EN30B EN34 EN36 EN40 EN40B EN40C EN40T EN41 EN41A EN41B SAE 4140 SAE 4140 steel SAE 8620 SAE 8620H SAE Steel SAE8620 SAE8620H BS817M40 BS 970 817M40 EN16 steel EN16T steel EN24 material steel grade 4140.
High-strength low-alloy steel specifications provide better mechanical properties and/or greater resistance to atmospheric corrosion than conventional carbon steels. Low-alloy steels constitute a category of ferrous materials that exhibit mechanical properties superior to plain carbon steels as the result of additions of alloying elements such as nickel, chromium, and molybdenum. Alloy steels can be classified according to chemical composition, such as nickel steels, nickel-chromium steels, molybdenum steels, chromium-molybdenum steels. Chromium-molybdenum alloy steels contain provide improved oxidation and corrosion resistance, and the molybdenum increases strength at elevated temperatures. They are generally supplied in the hardened and tempered condition. Chromium-molybdenum steels are widely used in the oil and gas industries and in fossil fuel and nuclear power plants.

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