Starc Metals is a reputable manufacturer and supplier located in Canberra, Australia, focusing on high-quality Tool and Die Steel S1 Bars. With a strong dedication to precision engineering and rigorous quality standards, Starc Metals delivers materials that cater to the demanding requirements of today’s industries. Our S1 Tool Steel Bars are well-known for their exceptional toughness, wear resistance, and durability, even in extreme working conditions. Whether you need them for forging, stamping, or toolmaking, Starc Metals guarantees consistent performance and reliability, making us the go-to choice for clients who value excellence in steel manufacturing and supply.
Tool and Die Steel S1 Bars primarily consist of carbon (0.50–0.60%), silicon (0.90–1.20%), manganese (0.20–0.60%), chromium (2.75–3.25%), molybdenum (0.40–0.80%), and vanadium (0.15–0.30%). This unique blend offers an outstanding balance of toughness and wear resistance. S1 steel showcases excellent impact strength, even in low temperatures, and retains a hardness of around 54–58 HRC after heat treatment. Its remarkable shock resistance and dimensional stability under stress make it perfect for heavy-duty tools and dies that face severe impact conditions.
| C | Mn | Si | Cr | Ni | Mo | W | V | Cu | P | S |
| 0.40-0.55 | 0.10-0.40 | 0.15-1.20 | 1.00-1.80 | 0.30 | 0.50 | 1.50-3.00 | 0.15-0.30 | 0.25 | 0.03 | 0.03 |
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell C (air cooled from 899°C, 30 mins) | 54.5 | 54.5 |
| 56 | 56 | |
| Hardness, Rockwell C (air cooled from 982°C, 30 mins) | 56.5 | 56.5 |
| Modulus of elasticity | 207 GPa | 30000 ksi |
| Charpy impact (V-notch; oil quenched from 954°C; 149°C temper temperature) | 10.8 J | 8.00 ft-lb |
| Charpy impact (V-notch; oil quenched from 954°C; 625°C temper temperature) | 29.8 J | 22.0 ft-lb |
| Machinability (1% carbon steel) | 70.0 – 75.0% | 70.0 – 75.0% |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| AISI / SAE | DIN / W.Nr | UNS | JIS | GB | AFNOR |
| S1 | 1.2550 | T41901 | G4053 | GB/T 3077 | 55 WC 20 |
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal expansion | 12.4 x 10-6/ºC | 20-100 | – |
When choosing Tool and Die Steel S1 bars, consider hardness, wear resistance, toughness, machinability, heat treatment capabilities, and the specific requirements of the application to ensure optimal performance and durability.
Tool and Die Steel S1 bars resist corrosion due to their alloy composition, which includes elements like chromium and molybdenum. These elements form a protective oxide layer, enhancing resistance to oxidation and rust.
Tool and Die Steel S1 Bars are commonly utilized in applications that demand exceptional impact toughness and resistance to cracking or chipping. Typical uses include the production of cold chisels, punches, hammers, shear blades, and forming dies. Thanks to their ability to endure repeated shock loads, S1 Bars are perfect for tools that experience impact or dynamic stress. They also find applications in the aerospace, automotive, and heavy engineering sectors for precision components and molds. The combination of strength, ductility, and wear resistance makes S1 Tool Steel Bars a dependable choice for challenging tooling applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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