Aisi 4142/jis Scm440 Structural Alloy Steel Pipe

We offers aisi 4142jis scm440 structural alloy steel pipe.
standards:astm,jis,gb,en(din,bs,nf) or per as client requires.
product basic information:
material 4142
chemical composition mechanical properties(in quenched & tempered state)
c 0.38-0.45 tensile strength(mpa) 1080
si 0.17-0.37 yield strength (mpa) 930
mn 0.50-0.80 elongation(δ5%) 12
cr 0.90-1.20 reduction in area (ψ%) 45
mo 0.15-0.25 impact (j) 63
p ≤0.035
hardness
≤229hb
s ≤0.035
cu ≤0.30
ni ≤0.30
2.product application areas:
our products have been used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,chemical industry,
electronic information,achine manufacture, petrochemical, automotive,instrument and meter, communication ,transportation, and medical instruments, etc.
3.similar steel grade & equivalent steel materials:
usa japanese gemany british france international chinese
astm&aisi&sae jis en din en bs en nf iso gb
4142 scm440 42crmo4(1.7225) 42crmo4 42crmo4 ------ 20crmocr.