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Air Hardening Tool Steel 1 2363 A2 - China
price: contact company for price
1.2363 / A2 air hardening cold work tool steel - plate and bar.
Chemical composition (typical, ladle analysis):
C 0.95-1.10% | Si max 0.50% | Mn 0.40-0.80% | Cr 4.75-5.50% | Mo 0.90-1.40% | V 0.15-0.50% | P max 0.030% | S max 0.030% Air hardening means low distortion in heat treatment, which is why A2 is common on long, slender tools and on dies that cannot be quenched in oil without moving.
Delivery condition: annealed max 235 HB; or hardened and tempered 58-62 HRC.
Heat treatment: austenitise 950-980 C, cool in still air or positive pressure gas, temper 150-250 C twice.
Applications: long punches and dies, coining and embossing tools, slitting and trimming blades, gauges, thread rolling dies, press tools where dimensional stability matters.
Available sizes: plate 6-250 mm thick, width to 1, 000 mm; round bar 16-250 mm.
Quality: mill test certificate per heat with composition and hardness.
Shipping: seaworthy packing, Shanghai and Ningbo ports, FOB or CIF terms.
Company Contact:
- Posted By: Hubei Keyspark Special Steel Co., Ltd.
- Phone: +8615024056480
- Address: 30 Huahu Avenue, Huangshigang District, Huangshi , Hubei , China
- Email:
- Website: https://keysparksteel.com
Published date: November 12, 2026 - Modified date: November 12, 2026
- Business Description: Hubei Keyspark Special Steel Co., Ltd. is an integrated special steel manufacturer in Huangshi, Hubei, China.
Melting, ladle refining, vacuum degassing, ESR, forging and heat treatment are all in house.
Products: plastic mold steel (1.2311/P20, 1.2312, 1.2316, 1.2738), cold work steel (1.2083, 1.2379/D2, DC53), hot work steel (1.2344/H13, 1.2714), high speed steel, alloy and stainless steel.
Supplied with mill test certificates worldwide.
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