Garg Steels, a top-notch manufacturer and supplier based in Chennai, India, specializes in high-quality Tool and Die Steel S7 Bars. These bars are celebrated for their outstanding impact resistance, toughness, and versatility, making them perfect for both cold and hot work tooling environments. Committed to upholding global quality standards, Garg Steels guarantees that every S7 bar meets the rigorous demands of the tooling industry. Available in a variety of sizes and finishes, their S7 steel bars are designed for applications that require strength, durability, and shock load resistance, serving sectors like automotive, forging, and heavy engineering with dependable performance.
Tool and Die Steel S7 Bars are air-hardening, shock-resistant tool steels made up of about 0.45% carbon, 3.25% chromium, 1.4% molybdenum, and 0.3% vanadium. This unique blend provides a remarkable combination of high impact toughness and moderate wear resistance. Typically, S7 bars reach hardness levels of up to 58 HRC and maintain excellent dimensional stability after heat treatment. They also offer good machinability and can endure both cryogenic and elevated temperatures. Garg Steels meticulously controls the chemical and mechanical properties, ensuring their S7 Bars are perfect for demanding tooling and industrial 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 are perfect for applications that demand high impact strength and durability under heavy shock loads. They find extensive use in the automotive, aerospace, and metal forming industries for crafting chisels, punches, dies, shears, and forging tools. Thanks to their exceptional toughness and resistance to cracking under intense stress, S7 Bars are also employed in injection molds, jackhammer bits, and industrial cutting tools. Garg Steels provides S7 Bars specifically designed to endure extreme conditions while ensuring dimensional accuracy, delivering reliable performance in both cold and hot work 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.
Garg Steels is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Chennai, India
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