Anucha Metals, a reputable manufacturer and supplier located in Bangkok, Thailand, is dedicated to providing top-notch Tool and Die Steel S7 Bars. Renowned for their precision engineering and dependability, the company guarantees that each product adheres to international standards, catering to a variety of industrial sectors. Tool and Die Steel S7 Bars are prized for their remarkable toughness, shock resistance, and durability even in extreme conditions. Anucha Metals offers these bars in tailored sizes and specifications, meeting the diverse needs of tool-making, engineering, automotive, and heavy-duty applications with consistent quality and prompt delivery.
Tool and Die Steel S7 Bars are air-hardening tool steels that include carbon, chromium, molybdenum, and vanadium as essential alloying elements. This distinctive composition grants them high toughness, wear resistance, and the capacity to endure sudden shocks. The steel showcases impressive impact strength and maintains dimensional stability during heat treatment. With a tensile strength of around 2200 MPa and a hardness range of 56–60 HRC post-hardening, it strikes a balance between toughness and hardness, making it ideal for both hot and cold work applications. Its well-rounded mechanical properties boost tool life, reliability, and performance across various demanding environments.
| 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 demand exceptional impact resistance and strength. They are commonly utilized in the production of chisels, punches, shear blades, riveting tools, and forming dies. Thanks to their high toughness, these bars are also employed in creating pneumatic tools, machine parts, and hot-work applications like forging dies and die-casting inserts. In the automotive and aerospace sectors, S7 steel bars are favored for precision components where durability and reliability are paramount. Their versatility makes them a go-to choice for a wide range of applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Anucha Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Bangkok, Thailand
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