JIS SUS440A ASTM 440A
JIS SUS440A ASTM 440A 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.
Annealing ≤HB255,pre-hardened HRC 40-46/HRC50-55.
PRODUCT : AISI 430/ DIN X8Cr17/1.4016/SUS430 ROUND BARS
CHEMICAL COMPOSITION:
C | Si | Mn | P | S | Cr | Ni | Mo |
0.60-0.75 | ≤1.0 | ≤1.0 | ≤0.035 | ≤0.030 | 16.0-18.0 | ≤0.6 | ≤0.75 |
Specifications:
DELIVERY HARDNESS: ≤255HB
DELIVERY CONDITION:
1. Cold drawn round bar
2. Centerless grinding round bars
3. Peeling round bar
DIAMETERS : FROM 2mm TO 35mm
DIAMETER TOLERANCE : h7,h8,h9,h10
DELIVERY LENGTHS: FROM 1 METER TO 6 METERS
STRAIGHTNESS:0.5MM/M
Characteristics :
Have agood toughness and small deformability
Applications :
Precision parts and shaft
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