Tool and Die Steel S1 Bars are crafted specifically for high-impact tasks, delivering outstanding shock resistance, toughness, and durability. As an air-hardening, shock-resisting steel, S1 strikes a perfect balance between strength and flexibility, making it the go-to choice for components that face repeated impacts and heavy loads. These bars keep their shape and hardness even in tough conditions, ensuring dependable performance in critical tooling applications. With excellent machinability, wear resistance, and consistent quality, Tool and Die Steel S1 Bars are commonly used in the production of precision tools, dies, punches, and other industrial parts where durability and longevity are key.
The composition of Tool and Die Steel S1 Bars includes chromium, molybdenum, vanadium, and medium carbon, which together create an ideal mix of mechanical properties. This blend offers high impact strength, remarkable toughness, and resistance to cracking and deformation when faced with sudden loads. S1 steel maintains its hardness and performance during heat treatment and shows good wear resistance in high-stress situations. Its unique combination of shock resistance, durability, and dimensional stability makes S1 Bars perfect for critical tooling tasks, ensuring reliable service in industries that demand heavy-duty performance and precision.
| 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.
You’ll find Tool and Die Steel S1 Bars used across various sectors, including metalworking, automotive, construction, and heavy machinery. Their impressive shock resistance makes them perfect for crafting chisels, punches, shear blades, forming dies, and impact tools. They’re also well-suited for forging operations, stamping tools, and any application that involves repeated stress or sudden impacts. With their exceptional toughness, wear resistance, and long-lasting reliability, Tool and Die Steel S1 Bars consistently deliver performance in challenging industrial settings, making them a trusted choice for manufacturers.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Junaid Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manama, Bahrain
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