Mourad Metals, located in Tunis, Tunisia, has earned a solid reputation as a manufacturer and supplier of precision-engineered industrial steels for markets around the globe. One of their standout products is the **Tool and Die Steel S7 Bars**, which are high-performance, shock-resistant steel bars crafted for tough tooling applications. Mourad Metals employs cutting-edge production techniques, strict quality control, and adherence to international standards to ensure that their S7 bars deliver consistent performance and reliability. With a wealth of technical knowledge and strong customer support, the company serves industries like automotive, aerospace, heavy machinery, and general manufacturing, providing materials that excel under impact, high stress, and repeated loading, ensuring durability and effective tooling. ([Rishabh Steel][1])
**Tool and Die Steel S7 Bars** are a type of shock-resistant tool steel that typically meets standards such as ASTM A681 and DIN 1.2355. They feature a well-balanced alloy composition, including **0.45–0.55 % carbon**, **3.00–3.50 % chromium**, and **1.30–1.80 % molybdenum**, along with silicon, manganese, and vanadium to boost toughness. This unique blend gives S7 impressive impact resistance, high strength, and good hardenability. After undergoing heat treatment, S7 bars can reach a Rockwell hardness of around **57 HRC** while maintaining significant toughness, making them perfect for tools that face repeated shock loads and stress during use. ([Rishabh Steel][1])
| 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 their place in various applications where durability, toughness, and impact resistance are essential. They are particularly well-suited for crafting **punches, chisels, shear blades, and forming dies** that must withstand repeated shocks and dynamic loads in both cold and medium-hot working environments. Additionally, S7 bars are utilized for **extrusion dies, stamping tooling, and heavy-duty tooling components** across the automotive, aerospace, and industrial machinery sectors. Their robust properties make them a go-to choice for demanding applications that
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
Copyright 2024 Mourad Metals. All rights reserved
