T1 (1.3355), also known as W18 or SKH2, is a classic tungsten-based high-speed tool steel. It is well known for its excellent hot hardness, strong wear resistance, and stable cutting performance at elevated temperatures.
Thanks to its high tungsten content, T1 steel maintains hardness and cutting-edge stability even under high-speed and high-temperature machining conditions. It is widely used in precision cutting tools, drills, end mills, and heavy-duty industrial tooling, where thermal stability and wear resistance are critical.
For manufacturers seeking a reliable, proven HSS grade, W18/T1 remains a practical and cost-effective choice for both conventional and demanding machining applications.
W18 high-speed steel is used where high hardness, wear resistance, and high-temperature strength are required, including:
| ZEICIN Grade | GB | AISI | JIS | DIN | Erasteel | Bohler | Hitachi |
| W18 | W18Cr4V | T1 | SKH2 | 1.3355 | ET1 | S200 | YHX2 |
| Elemnet | C | W | Mo | Cr | V | Co | Al | Mn | Si | S | P |
| Contene(%) | 0.73-0.83 | 17.20-18.70 | – | 3.80-4.50 | 1.00-1.20 | – | – | 0.10-0.40 | 0.20-0.40 | ≤0.03 | ≤0.03 |
Performed to soften the steel, relieve internal stresses, and improve machinability before hardening.
Heated to high temperature and rapidly cooled to achieve high hardness, wear resistance, and cutting performance.
Applied after quenching to reduce residual stress and optimize the balance between hardness and toughness, ensuring stable performance at elevated temperatures.
Annealing-Quenching-Tempering graph (HRC:63-64)
ZEICIN Steel is a professional manufacturer of W18 / T1 high-speed steel, supplying products through hot rolling and hot forging processes. Both bulk orders and customized sizes are available.
| Type | Specification（mm) | Surface Condition |
| Cold-drawn Round Steel | φ1-12 | Black/Centerless Surface |
| Hot-rolled Round Steel | φ12-60 | Turned Surface |
| Precision Forged Round Steel (Spray Forming) | φ60-300+ | Turned/Peeled Surface |
Different surface conditions affect appearance, dimensional accuracy, and machining allowance. The images below show common delivery options (actual products may vary by size and batch).
ZEICIN STEEL invests in R&D for high-speed steels and martensitic stainless steels. Our focus is on cleaner steel, more uniform carbide distribution, and stable heat-treatment response to support longer service life and better batch consistency.
Our company research and development team：Our company is one Member of the key project of “the 13th five-year plan ”of the National ministry of science and technology, Our company enjoys National government support and financial subsidies.
Together with Shanghai University and a Beijing-based steel research institute, we have developed a rapid-solidification electroslag remelting (RS ESR) process route. This process helps improve steel cleanliness and carbide uniformity, supporting longer tool life and more stable performance.
We work with Baosteel Group on spray forming technology. Our team supports process development and engineering validation for spray-formed HSS, helping meet high-performance material development and scale-up needs.
Yes. We are a factory. ZEICIN STEEL produces high-quality, cost-effective special steels, including stainless steel, tool & die steel, and high-speed steel. We also have our own import/export license, so we can serve overseas customers directly and support stable supply with batch traceability.
Yes. For first-time cooperation, we can provide a limited quantity of samples for verification (such as grade confirmation, machining trials, or heat-treatment evaluation). Samples can be shipped by international courier, and the courier cost is paid by the buyer. We value honest cooperation and look forward to a long-term win-win partnership.
Our common international payment methods include T/T and L/C. For trade terms, we can also support options such as DDU based on the order. The final payment method and terms can be confirmed according to your country/region, order value, and delivery method.
Our products use standard industrial packaging to ensure safe transportation. If you need custom packaging, please let us know when placing your order.
If the products are in stock, delivery usually takes 5–7 days.
If the products are not in stock, delivery time is about 30–40 days, depending on the order quantity.
