For over four decades, Nimish Metal in Safat, Kuwait has been the trusted name for industrial suppliers, built on a foundation of reliability and quality. We are proud to be your dedicated source for premium High Speed Steel T15 Bars. Sourced from esteemed mills and rigorously checked, these bars are supplied to support the demanding needs of Kuwait’s most critical manufacturing and machining operations, ensuring your tools and components are built to last.
The composition of T15 is distinct, containing high carbon, tungsten, cobalt, and significant vanadium. This blend gives it exceptional red-hardness, allowing it to retain its cutting edge at very high temperatures. Mechanically, it boasts impressive hardness, outstanding wear resistance, and high compressive strength, making it far superior to conventional steels for challenging tasks. This unique combination empowers tools to handle arduous jobs that would degrade other materials.
| ASTM A600 | C | Si | Mn | Cr | Mo | P | S | V | W | Co |
| T15 | 1.50~1.60 | 0.15~0.40 | 0.15~0.40 | 3.75~5.00 | ≤1.00 | ≤0.030 | ≤0.030 | 4.50~5.25 | 11.75~13.0 | 4.75~5.25 |
| DIN W-Nr | C | Si | Mn | Cr | Mo | P | S | V | W | Co |
| 1.3202 | 1.30~1.45 | ≤0.45 | ≤0.40 | 3.80~4.50 | 0.70~1.00 | ≤0.030 | ≤0.030 | 3.50~4.00 | 11.50~12.50 | 4.50~5.00 |
| GB/T | C | Si | Mn | Cr | Mo | P | S | V | W | Co |
| W12Cr4V5Co5 | 1.50~1.60 | 0.15~0.40 | 0.15~0.40 | 3.75~5.00 | <1.00 | ≤0.030 | ≤0.030 | 4.50~5.25 | 11.75~13.00 | 4.75~5.25 |
| BS | C | Si | Mn | Cr | Mo | P | S | V | W | Co |
| BT15 | 1.40~1.60 | ≤0.40 | ≤0.40 | 4.25~5.00 | ≤1.00 | ≤0.030 | ≤0.030 | 4.75~5.25 | 12.0~13.0 | 4.50~5.50 |
| JIS | C | Si | Mn | Cr | Mo | P | S | V | W | Co |
| SKH10 | 1.45~1.60 | ≤0.45 | ≤0.40 | 3.80~4.50 | – | ≤0.030 | ≤0.030 | 4.20~5.20 | 11.50~13.50 | 4.20~5.20 |
| Density | 0.296 lb/in3 (8193 kg/m3) |
| Modulus Of Elasticity | 30 x 106 psi (207 GPa) |
| Machinability | 40-45% of a 1% carbon steel |
| Specific Gravity | 8.19 |
| AISI/ASTM | Werkstoff | EN/DIN | BS | JIS/KS |
| T15 | 1.3202 | S12-1-4-5 | BT15 | SKH10 |
| Annealing | Preheat | Austenitizing | Quench | Tempering |
| Temp °F | Temp °F | Temp °F | Medium | Temp °F |
| 1550/1600 | 1500/1550 | 2200/2250 | Salt/Oil/Atm | 1025/1050 |
High-Speed Steel T15 bars are sized by their diameter and length, typically ranging from small diameters for precision tools to larger sizes for heavy-duty applications, tailored to customer specifications.
Yes, High-Speed Steel T15 bars are recyclable. They can be melted down and repurposed into new products, making them an environmentally friendly option for sustainable manufacturing and reducing material waste.
High-speed Steel T15 bars should be stored in a dry, cool environment, away from moisture and extreme temperatures. They should be kept on racks or pallets to prevent rust and damage.
These bars are the top choice for crafting high-performance cutting tools, especially in industrial settings. You’ll often find T15 steel in drills, milling cutters, reamers, and particularly in tools designed for heavy-duty work on cast iron, alloy steels, and high-temperature superalloys. Its ability to withstand intense heat makes it ideal for high-speed and high-feed machining operations, where maintaining a sharp cutting edge is critical for productivity and precision.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nimish Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Safat, Kuwait
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