Tariku Metals, located in Addis Ababa, Ethiopia, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Tool and Die Steel S7 Bars. Known for their precision engineering and high material standards, Tariku Metals delivers dependable steel solutions for a variety of industrial needs. The S7 Bars are crafted using cutting-edge metallurgical techniques, ensuring they boast exceptional strength, toughness, and resistance to wear and impact. Catering to a diverse array of industries such as automotive, construction, and manufacturing, Tariku Metals is dedicated to providing durable, high-performance steel products that adhere to both local and international quality standards.
The Tool and Die Steel S7 Bars from Tariku Metals are air-hardening, shock-resistant tool steels, featuring a well-balanced mix of carbon (0.45–0.55%), chromium (3.0–3.5%), molybdenum (1.3–1.8%), and silicon (0.2–1.0%). This unique alloy combination delivers superior toughness and impressive impact strength while still offering moderate wear resistance. After proper heat treatment, the S7 steel achieves a hardness range of 54–56 HRC. It also showcases excellent dimensional stability, high compressive strength, and good machinability, making it perfect for demanding tooling and die applications that require both durability and shock resistance.
| 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.
Tariku Metals’ Tool and Die Steel S7 Bars are widely utilized in applications that demand exceptional impact resistance and durability. They’re perfect for crafting chisels, punches, shear blades, forming dies, and plastic mold tools. Thanks to their remarkable toughness, S7 Bars are also the go-to choice for hammer and forging dies, cold heading tools, and other heavy-duty components that face high stress and shock. The steel’s ability to maintain its strength and hardness under repeated impact loads makes it suitable for both cold and hot work operations, ensuring a long service life and consistent performance in industrial settings.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Tariku Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Addis Ababa, Ethiopia
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