Alloy 630 H900


AISI 630
ASTM A564 630 – H900
ASME SA564 630 – H900


Base Element Fe(Iron)

Element Min Max
C(Carbon) 0.07%
Cr(Chromium) 15 17.5%
Cu(Copper) 3 5%
Mn(Manganese) 1%
Nb(Niobium) 0.15 0.45%
Ni(Nickel) 3 5%
P(Phosphorus) 0.04%
S(Sulphur) 0.03%
Si(Silicon) 1%
Mechanical Property value
Ultimate Tensile Strength (UTS) 1370 MPa
0.2% Proof Stress 1260 MPa
Elongation 15%
Gauge Length A50mm
Hardness (Brinell) 420 HB
Hardness (Rockwell C) 44 HRC
Charpy V-Notch Impact = Room Temp. 21J


Corrosion Resistant
Oxidatioin Resistant
Creep and Stress Rupture properties


Precipitation hardenable stainless Steel used within the petrochemical industry. Including Valve parts, pump shafts, chemical process equipment.
Nuclear reactor components
Aircraft and missile fittings

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