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Guangzhou Changfeng Steel Co., Ltd.

Special Steel, alloy steel, Steel Plates manufacturer / supplier in China, offering Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S), 1.2311 Steel Plate for Hot-Rolled Plastic Mould Steel, Alloy Steel High Speed Steel Round Bar (1.3355/T1/Skh2) and so on.

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Supplier Homepage Product Plastic Mould Steel Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)

Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)

Purchase Qty.:
(Tons)
3-4 5-19 20+
FOB Unit Price: US $1,040 US $1,020 US $990
Purchase Qty. (Tons) FOB Unit Price
3-4 US $1,040
5-19 US $1,020
20+ US $990
Get Latest Price
Port: Shenzhen, China
Production Capacity: 1000 Tons/ Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: 1.2312, P20+S, X40CrMnMoS8-6, 4Cr2MnMo
  • Technics: Hot Rolled
  • Surface: Polished
  • Special Use: Wear Resistant Steel
  • Place of Origin: Shenzhen,China
  • Certificate: ISO/Mill Certificate
  • Heat Treatment: Annealing or Q+T
  • Payment term: 30% deposit, Balance by L/C at sight or T/T
  • Production process: EF/EAF+LF+VD/ESR
  • Transport Package: Export Standard Packing or Customers′demand
  • Origin: China
  • Standard: DIN, JIS, AISI, ASTM, GB, BS
  • Application: Die Steel Plate
  • Alloy: Alloy
  • Grade Number: 1.2312, P20+S, X40crmnmos8-6,4Cr2MnMo
  • Test: SGS / Ut 100% / Element Testing
  • Technology: hot rolled/forged
  • Other Surface: Black, peeling, machined
  • Package: Rude or as customer′s requirement
  • Trademark: CF STEEL
  • Specification: According to customer requirements
  • HS Code: 7225401000
Product Description
Mould Steel Block Alloy Steel Plate with Excellent Machinability(1.2312/P20+S) 

1.2312/P20+S steel is ideally suited for the production of moulds where improved machinability is required. Typical applications include die holders, zinc die casting dies, backers, bolsters and injection moulds. The versatility of this plastic mould tool steel with its high tensile characteristics enables uses for a variety of other applications such as shafts and wear strips.


1, The main performance
It has excellent hardening depth and good machinability, Delivery to pre hardened and tempered condition, Sulfur content is higher than 1.2311. Can impose nitriding processing (about 800HV), plating Nickel or chrome.

2, Application:
Mainly used for the degree of thefamily which do not require extreme large plastic moulds, Used as a low melting point of die holder , mould base, etc.

3, Grade
W.NrDINAFNORAISI/SAEGB
1.2312X40CrMnMoS8-6(40CMD8S)P20+S4Cr2MnMo

4, Chemical composition (%)
CMnSiCrMoNiS+P
0.35-0.451.40-1.600.30-0.501.80-2.000.15-0.250.05-0.100.015

5, Phase transition temperature
Ac1740°C
Ms310°C

6, The hardness of delivery
Prehardened and temperedHB278-325(950-1100N/mm²)

7, Heat treatment
Annealing1)Heated to720-750°C,Two to four hours heat preservation,
2)Furnace cooling
Stress relief1)Heated to560-650°C and then two to four hours heat preservation
2)Furnace cooling or air cooling
Pre hardened1)Preheat to 600-650°C
2)Heated to hardening temperature 840-840°C and heat preservation
3)Oil cooling
4)Hardness:HRC51
Drawing temper1)Immediately after quenching
2)When the 580-650°C,with the 1/inch to heat preservation

8, Delivery: For abundant stock, 15-20 days.For customized products, 30-50 days.

9, Packing: We provide standard export packing or according to customers' request.       

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Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)
Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)
Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)
Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)
Mould Steel Block Alloy Steel Plate with Excellent Machinability (1.2312/P20+S)
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Mrs. Helen Xie
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