JIS G4053 SCM440 steel is a commonly used steel for high-strength fasteners. The products of SCM44O steel mainly contain steel works/ steel structures/ steel machining parts that have the advantages of stable composition, low harmful elements, high purity of steel, small decarburization layer and less surface defect. More information about SCM44O steel is below.
| Grade |
|
the chemical composition |
|||||||
|
SCM440 |
C |
Si |
Mn |
P max |
Mo |
S max |
Cu max |
Ni max |
Cr max |
|
0.38-0.42 |
0.15-0.35 |
0.60-0.85 |
0.030 |
0.15-0.30 |
0.03 |
0.30 |
0.25 |
0.90-1.20 |
|
| Grade |
Tensile strength |
Yield strength min σs (MPa) |
Elongation % min(δ5) |
impact strength |
hardness |
|
SCM440 |
1080(110) |
930(95) |
12% |
≥63 |
≤217HB |
The shape, dimension, mass and tolerances will comply with JIS G4053
Heat treatment: normalizing, tempering, annealing, quenching, hardening and tempering.
Processing items :If you need simple pretreatment for the SCM44O steel, we also can do that for you, we can supply JIS G4053 SCM44O steel work/ steel structures/ steel machining parts. Usually the SCM44O steel work/ steel structures/ steel machining parts are treated through the processing of hot rolling, hot forging, cutting, cold drawing carburizing, etc. Your special processing requirements are accepted.
General use: SCM44O steel work/ steel structures/ steel machining parts are easy for SPHEroidizing annealing, low cracking rate, stable quality of heat treatment, uniform hardness, and are widely used in power plants including engines, steam turbine fasteners, the main shafts, heavy load transmission shafts, large section parts of turbo generators.
If you need JIS G4053 SCM44O steel work/ steel structures/ steel machining parts for power plants, please contact us and send your inquiry.
