Luois Metals is a reputable manufacturer and supplier located in Houston, USA, specializing in high-quality Tool and Die Steel S1 Bars. These bars are designed to provide exceptional toughness and shock resistance, making them perfect for even the toughest tooling applications. Tool Steel S1 is an oil-hardening, shock-resisting steel that strikes a remarkable balance between high impact strength, wear resistance, and hardness. Manufactured to strict standards like ASTM A681, these bars come in a variety of diameters, lengths, and surface finishes to cater to different machining and die-making needs. Toolmakers around the globe trust S1 bars for components that face intense mechanical shock and dynamic loads.
Tool and Die Steel S1 Bars are made up of approximately 0.50–0.60% carbon, 2–3% silicon, 0.50–1% manganese, 0.50–1% molybdenum, and 0.50–1% chromium. The high silicon content in this alloy enhances its toughness and ability to resist deformation under impact. After undergoing heat treatment, the typical hardness falls between 56–58 HRC. This steel boasts high tensile strength and excellent fatigue resistance, making it perfect for shock-loading scenarios. Its blend of wear resistance, moderate hardenability, and remarkable toughness guarantees reliable performance in chisels, punches, dies, and other tools that endure heavy use.
| 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 | – |
Tool and Die Steel A2 Bars, are specifically used for making cold work tools, dies, and molds. A2 steel is also known for its wear resistance, toughness, and dimensional stability characteristics, making it suitable for punching, blanking, and forming die fabrication. Its high strength along with significant abrasion resistance also aids in using it for cutting, drilling, and shaping tool applications. This is air-hardening and remains sharp on the edges, thus well-suited for applications related to precise tools and intricate designs. Applications such as gauges, blades, and fixture typically require durability and performance, and A2 steel bars are applied for that purpose.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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