Mould steel 1.2312 sheet hot forged 1.2312 steel plate P20+S steel block

DIN 1.2312 steel is a high quality plastic mold steel material. Steel 1.2312 is material produced by add about 0.08% sulphur on material 1.2311. The S element improves free cutting ability of 1.2311 steel. DIN 2312 material is usually delivered in pre-hardness condition and hardness 28~34HRC.

Product Description

ASTM P20+S steel is equivalent to DIN 1.2312 material. Generally, 40CrMnMoS8-6/1.2312 and P20+S mold steel will have the same properties for final application.

1. Supply Range of 1.2312 Material

Round Bar: diameter 20mm – 500mm

Steel Plate and Steel Block: thickness 12-300mm x width 200-2300mm (*20-120mm plate in stock in prehardened condition)

Surface Finish: Black Surface, Roughly Machined, Peeled & Turned or as per given requirements.

2. Relevant 1.2312 Steel Specification and Equivalent Steel Grades

1.2312 P20+S

DIN ISO 4957	C		Mn		P	S	Si		Cr		Mo
1.2312	0.35	0.45	1.30	1.60	0.03	0.05-0.1	0.20	0.40	1.80	2.10	0.15	0.25
ASTM A681	C		Mn		P	S	Si		Cr		T
P20+S	0.28	0.40	0.60	1.00	0.03	0.03	0.20	0.80	1.40	2.00	0.30	0.5

3. 1.2312 Plastic Mold Steel Properties

Density: 7.84 g/cm³
Linear expansion coefficient: 12.4 *10^-6m/(m*K)
Thermal conductivity: 34 W/(m*K)
Hardness (in soft annealed condition): < 235 HB

Hardness (in hardened and tempered condition): < 51 HRC

5.Applications of 1.2312 Materials

DIN 1.2312 is good for plastic injection moulds for thermoplastics, extrusion dies for thermoplastic, compression molds application. Tools for plastics processing and moulds for pressure die casting.