Rupal Metals stands out as a top manufacturer and supplier of Tool and Die Steel S7 Bars, proudly based in Delhi, India. Renowned for its precision engineering and exceptional product quality, Rupal Metals provides high-performance S7 steel bars designed to meet the demands of critical industrial applications. Tool Steel S7 is a shock-resistant, air-hardening steel that offers a fantastic combination of high impact toughness and moderate wear resistance. It’s perfect for tools that face both heavy impact and sudden loads. With custom dimensions and quick delivery, Rupal Metals guarantees reliability and performance for industries that need durable, impact-resistant tooling solutions.
Tool Steel S7 Bars generally consist of 0.45% Carbon, 3.25% Chromium, 2.25% Molybdenum, and 0.25% Vanadium, creating a remarkable balance of strength, toughness, and shock resistance. S7 is air-hardening and achieves a hardness range of 54–56 HRC after heat treatment. It boasts a tensile strength of about 1900 MPa and outstanding impact resistance, even in lower temperatures. This steel retains its hardness when faced with high thermal shock and mechanical stress, making it suitable for both cold and hot work tool applications.
| ASTM A681-2008 | C | Si | Mn | P | S | Cr | V | Mo | ||||||
| S7/T41907 | 0.45 | 0.55 | 0.20 | 1.00 | 0.20 | 0.90 | 0.03 | 0.03 | 3.00 | 3.50 | – | 0.35 | 1.30 | 1.80 |
| DIN ISO 4957 | C | Si | Mn | P | S | Cr | V | Mo | ||||||
| 1.2355/50CrMoV13-15 | 0.45 | 0.55 | 0.20 | 0.80 | 0.50 | 0.90 | 0.03 | 0.02 | 3.00 | 3.50 | 0.15 | 0.35 | 1.30 | 1.70 |
| Properties | Metric |
| Hardness, Rockwell C (air cooled from 941°C, 649°C temper temperature) | 41 |
| Hardness, Rockwell C (air cooled from 941°C, 449°C temper temperature) | 53 |
| Hardness, Rockwell C (air cooled from 941°C, 149°C temper temperature) | 57 |
| Modulus of elasticity | 207 GPa |
| Charpy impact (V-notch; air cooled from 941°C; 425°C temper temperature) | 13.6 J |
| Charpy impact (V-notch; air cooled from 941°C; 649°C temper temperature) | 16.3 J |
| Charpy impact (V-notch; air cooled from 941°C; 200°C temper temperature) | 16.9 J |
| Machinability (1% carbon steel) | 70.0 – 75.0% |
| Poisson’s ratio | 0.27-0.30 |
| Country | USA | German |
| Standard | ASTM A681 | DIN EN ISO 4957 |
| Grades | S7/T41907 | 1.2355/50CrMoV13-15 |
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal expansion | 12.6 x 10-6/ºC | 20-200 | – |
The standard annealing temperature for Tool and Die Steel S7 bars is typically around 1,600°F to 1,650°F (871°C to 899°C), followed by slow cooling to relieve internal stresses.
Yes, Tool and Die Steel S7 bars are available in custom lengths and shapes, often tailored to specific customer requirements, ensuring versatility for various tooling and die applications.
Tool and Die Steel S7 Bars find extensive use in industries that need tools capable of withstanding extreme impact and shock loading. You’ll commonly see them in chisels, shear blades, riveting tools, and punches. Its impressive toughness makes it a go-to for air hammers, plastic mold tools, and jackhammer bits. S7 steel is also utilized in hot forming and forging applications, where resistance to thermal shock is crucial. In the die-making sector, S7 is preferred for master dies, cutting tools, and forming dies due to its perfect blend of hardness and ductility, ensuring a longer tool life even in tough working conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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