Based in Houston, Texas, George Metals is a reputable producer and supplier of premium metal products for a range of industries. George Metals provides a wide range of materials, including high-quality Tool and Die Steel S7 Bars, with a strong dedication to accuracy and quality. These bars are well-known for their remarkable durability and resistance to impact, making them perfect for demanding uses like heavy machinery, die-casting, and tooling. George Metals is a dependable partner for customers looking for high-performance materials for precision-driven and extreme-duty operations because of our dedication to constant quality and customer satisfaction, which guarantees that every product satisfies industry standards.
Tool and Die S7 High-carbon, high-chromium alloys are used to make steel bars, which are designed to provide exceptional toughness and resistance to wear. Carbon (0.45–0.55%), Chromium (5.25–6.25%), Manganese (0.60–0.90%), Silicon (0.60–1.00%), Vanadium (1.00–1.50%), and trace Molybdenum (0.30–0.50%) are the usual chemical composition. These components improve the steel’s impact durability, fatigue resistance, and strength. After heat treatment, S7 bars reach a hardness of 45–55 HRC, preserving their excellent mechanical performance in both hot and cold operating environments. They are ideal for tools that are subjected to high levels of impact and wear because of their balance of toughness and hardness.
| 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 S7 Applications requiring high shock resistance and toughness frequently use steel bars. S7 bars, which are frequently used in the manufacturing of punches, hammers, chisels, shear blades, and forming dies, are perfect for instruments that are frequently hit and stressed. They are ideal for use in both hot and cold forming processes due to their strength and wear resistance. S7 steel is also used in the heavy machinery, automotive, and aerospace sectors, where parts need to be resistant to cracking, fatigue, and heat stress. Long-term performance in environments requiring precision is guaranteed by its combination of machinability and durability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George 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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