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 6 METERS
STRAIGHTNESS:0.5MM/M
Characteristics :
high strength and toughness, have a good hardenability
Applications :
Precision parts and shaft hardenability
