Cold work tool steels are essentially high carbon steels with relatively low alloying additions of tungsten, manganese, chromium and molybdenum.
These alloy additions improve hardenability and allow for oil quenching deformation less than that of the W series.
These are relatively inexpensive steels, and their high carbon content provides sufficient wear resistance for short-term applications.
Cold work alloys provide a much better alternative to carbon tool steels. By the additions of Chromium - Cr, Managane - Mn, Molybdenum - Mo, these steels exhibit much better hardenability. Also, the additions of Tungsten - W, and Vanadium V - increase the amount of carbides in the alloy steels, which improves the abrasion resistance.
They are much more resistant to abrasion and have higher impact resistance, low tendency to deformation, increased resistance to oxidation, resistance to thermal fatigue and to warp. As a tool steels of higher quality, they are suitable for cutting parts, some of the grades are suitable for cold working and plastic working, cold dies, cutters for dies, pneumatic tools and chisels and drifts.
| lement | C | Mn | Si | Cr | Ni | W | V | Cu | P | S |
| Content (%) | 0.65-0.80 | 0.10-0.40 | 0.20-0.40 | 3.75-4.00 | 0.3 | 17.25-18.75 | 0.90-1.30 | 0.25 | 0.03 | 0.03 |
| Properties | Metric | Imperial |
|---|---|---|
| Poisson's ratio (25°C) | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus | 140 GPa | 20300 ksi |
| Shear modulus | 80.0 GPa | 11600 ksi |
| Hardness, Rockwell C (As hardened, 64.0 HRC at 120°C temper, 63.0 HRC at 150°C temper, 62.0 HRC at 175°C temper, 61 HRC at 190°C and 205°C temper, 60 HRC at 230°C temper, 59.5 HRC at 260°C temper, 58.5 HRC at 315°C temper. Oil quenched from 800°C, tempered for 1 hour) | 65 | 65 |
| Hardness, Knoop (converted from Rockwell C hardness) | 850 | 850 |
| Hardness, Brinell (converted from Rockwell C hardness) | 752 | 752 |
| Hardness, Vickers (converted from Rockwell C hardness) | ||
| Machinability (based on 100% machinability for 1% carbon tool steel) | 130 | 130 |
Grade | Alloy steel: Cr40/Cr42/AE4140 / 4340 / 5140 / 52100 / 4135 / 8620 / 6150 /P20 Cr-Mo /Cr12Mo1V/STD1 STD11 STD12/125Cr2/1.2002 125Cr1 etc Carbon steel: C45 / S50C / S55C |
Standard | ASME, ASTM, EN, BS, GB, DIN, JIS etc |
Technique | Cold Drawn, Hot Rolled, Forging |
Surface | Annealed & Pickled, Bright, Polished, HL, Black |
Size | Round Rod: Diameter: 3mm~800mm |
Packing | Bundled,wooden box for export standard package |
Delivery Time | 7-15 dyas,or according to the order quantity or upon negotiation |
MOQ | 5 Ton |
Cold work tool steels are high carbon steels containing small amounts of manganese, tungsten, molybdenum and chromium. They have good dimensional stability and hardenability.
The main applications are in：Shear blades. Punches. Cold heading dies. Blanking tools. Cold rolls and flanging rolls. Pressure rolls. Cutting and punching tools for thin sheet.
Profile rolls. Drawing and deep drawing tools. Embossing dies. Thread rolling dies.
We are a well known worldwide supply and export Tool steels in following countries：,Italy, Philippines, France，Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.
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