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1.2312

Mould steel; It is generally supplied hardened and tempered to 880-1080 N/mm2.Higher sulphur content proviedes good machinability at relatively high hardness.Possibility of nitriding. Steel has good polishability.
Enduse = mould frames,mould plates,mould frames for plastic and die casting moulds.

Chemical Composition:

Grade

Standard

C

Si

Mn

P≤

S≤

Cr

Mo

1.2312 

DIN

0.35-0.45

0.20-0.40

1.30-1.60

0.025 

0.05-0.10 

1.80-2.10

0.15-0.25

Heat Treatment: QT

Hardness: 280-330HB

Surface: surface flaws/cracks if any are removed by polishing. cleaning marks/scale pitting/peripheral decarburisation within the standard machining allowance is allowed.

US Test: SEP 1921 group 3, class D/d

Degree of Purity: DIN 50602, K4 max. 20

Microstructure: quenched and tempered / fine - even structure

Test Certificate: EN 10204/3.1 with chem. analysis,hardness HB,heat treatment,US test,etc.

Round Bar: Ø12-500mm    Flat Bar: 12-500x100-1500mm


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