STAINLESS STEEL UNS S17400 (630/17-4)
Chemical Compositions:
C |
Si |
Mn |
P |
S |
Cr |
Mo |
B |
Ni |
Co |
Cu |
Al |
Nb+Ta |
Ti |
Fe |
≤0.08 |
≤0.35 |
≤0.35 |
≤0.015 |
≤0.015 |
17.0-21.0 |
2.80-3.30 |
≤0.006 |
50.0-55.0 |
≤1.0 |
≤0.30 |
0.20-0.80 |
4.75-5.50 |
0.65-1.15 |
BAL |
Mechanical Properties(ASTM A564):
UNS S17400 |
Yield Strength |
Tensile Strength |
Elongation |
R.A. % |
Hardness HRC |
Solution |
-- |
-- |
-- |
-- |
≤38HRC |
H900 |
≥1170 |
≥1310 |
≥10 |
≥40(OD≤75) |
≥40 |
≥35(OD>75) |
|||||
H925 |
≥1070 |
≥1170 |
≥10 |
≥44(OD≤75) |
≥38 |
≥38(OD>75) |
|||||
H1025 |
≥1000 |
≥1070 |
≥12 |
≥45 |
≥35 |
H1075 |
≥860 |
≥1000 |
≥13 |
≥45 |
≥32 |
H1100 |
≥795 |
≥965 |
≥14 |
≥45 |
≥31 |
H1150 |
≥725 |
≥930 |
≥16 |
≥50 |
≥28 |
H1150M |
≥520 |
≥795 |
≥18 |
≥55 |
≥24 |
H1150D |
≥725 |
≥860 |
≥16 |
≥50 |
24 -33 |
Characteristics:
Alloy 17-4PH ( UNS S17400) , also called Stainless Steel 630, is chromium-nickel-copper age-hardening martensitic. 17-4PH has good strength and hardness in corrision resistant.
Applications:
• In aircraft industry - for structure parts.
• Biomedicine.
• Hand tools.
• Chemical processing.
• Food processing equipment.
• Gate valve.
• Nuclear waste disposal and storage for machine element.
• Oil and Gas production.
• Deck and platform for helicopPulp and paper - paper mill equipment.