Stainless Mould Steel 1 2316 Plates - China

1.2316 / X38CrMo16 martensitic stainless mould steel, pre-hardened 30-34 HRC - plate and block.

Chemical composition (typical, ladle analysis):

C 0.33-0.45% | Si max 1.00% | Mn max 1.50% | Cr 15.5-16.5% | Mo 1.0-1.3% | P max 0.030% | S max 0.030%

Pitting resistance equivalent (PREN ~ Cr + 3.3 Mo) is about 20, which is the reason this grade is chosen for moulds running PVC, PVDC, halogenated flame-retardant compounds and wet-chemistry resins where 13% chromium mould steels pit within months.

Delivery condition: pre-hardened and tempered 30-34 HRC, stress relieved, ready for machining.

Hardness tested on every block and stated on the certificate; a through-section hardness traverse can be supplied for thick sections.

Applications: injection moulds and inserts for corrosive polymers, extrusion dies for PVC profile, blow moulds, mould bases and bolsters exposed to wash-down, food and medical packaging tooling.

Working notes: polishable to SPI A2 and better from ESR material; weld repairs need preheat 250-350 C and immediate tempering; sulphur content matters - free-machining variants with 0.05% S polish noticeably worse.

Available sizes: plate 10-400 mm thick, width to 1,200 mm, blocks cut square and milled on request.

Quality: mill test certificate per heat with composition, hardness and, on request, inclusion rating to ASTM E45, decarburisation depth and ultrasonic inspection.

Production route: electric arc furnace, ladle refining, vacuum degassing, optional ESR, forging on a 5,000 t press, hardening and tempering in 12 furnaces including 4 vacuum units.

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

• 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.