SCM440 4140 1.7225

  • SCM440 4140 1.7225
  • SCM440 4140 1.7225
  • SCM440 4140 1.7225
SCM440 4140 1.7225

SCM440 4140 1.7225 General cold work die steel with good machinability,to be made die casting mold,extrusion and injection mold and ejector pins,ejector sleeve,punches,block gauge,measuring tools.
High wear resistance,high toughness,small deformation caused by heat treatment.
Have a high and uniform hardness after heat treatment,heat resisting,resistance to high temperature oxidation,good toughness,machinability and weldability.
QUENCHED & TEMPERED 32-36HRC,26-32HRC OR AS PER CUSTOMER REQUEST.

PRODUCT :   DIN 1.7225/ASTM/AISI 4140/ JIS SCM440 /GB42CrMo  QUENCHED AND TEMPERED ROUND BARS

                         

CHEMICAL COMPOSITION: 

C

Si

Mn

P

S

Cr

Mo

0.38-0.45

0.17-0.37

0.50-0.80

≤0.035

≤0.035

0.9-1.20

0.15-0.25

 

Specifications:

DELIVERY HARDNESS:  QUENCHED & TEMPERED 32-36HRC,26-32HRC OR AS PER CUSTOMER REQUEST

DELIVERY CONDITION:

1. QUENCHED & TEMPERED BLACK ROUND BRS

2. QUENCHED & TEMPERED CENTERLESS GRINDING ROUND BRS

DIAMETERS : FROM 2mm TO 35mm 

DIAMETER TOLERANCE : AS  PER DIN 175 OR EQUIVALENT ISO h7,h8,h9

DELIVERY  LENGTHS: FROM  1 METER TO METERS

STRAIGHTNESS:0.5MM/M

 

Characteristics :

high strength and toughness, have a good hardenability

 

Applications :

Precision parts and shaft hardenability


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