Isis Metals, a leading supplier of specialty steels based in Manila, Philippines, proudly presents **S7 Tool and Die Steel Bars** known for their outstanding toughness and shock resistance. Designed for high-impact and heavy-duty tasks, S7 steel is perfect for tools that face sudden shocks and stress. Isis Metals offers S7 bars in various sizes and heat-treated conditions to cater to the specific requirements of manufacturers and toolmakers. With a strong focus on quality and prompt delivery, Isis Metals guarantees that customers receive durable, high-performance steel solutions that are crucial for demanding tool and die applications across a range of industries.
S7 Tool Steel is an air-hardening alloy that contains about 0.45% carbon, 3.25% chromium, 1.40% molybdenum, 0.30% vanadium, and 0.90% manganese. After heat treatment, it achieves a hardness range of 54–58 HRC, striking a balance between high impact toughness and good wear resistance. The tensile strength typically falls between 1,650 to 2,070 MPa (240,000–300,000 psi), depending on the heat treatment process. Its distinctive composition makes it highly resistant to chipping and cracking under sudden impacts, making it a top choice for tools and dies that experience shock loads.
| 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.
S7 Tool and Die Steel Bars find extensive use in applications that require exceptional toughness and the ability to withstand sudden shock loads. They are frequently utilized in the production of punches, chisels, shear blades, and forming dies within the automotive, forging, and metal stamping sectors. Additionally, S7 is a popular choice for cold work applications that demand durability, such as mandrels, rivet tools, and plastic injection molds. Its remarkable toughness and capacity to maintain structural integrity under repeated stress make it an essential material for tools that endure impact, vibration, and heavy-duty use.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
Copyright 2024 Isis Metals. All rights reserved
