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17-4PH Precipitation Hardening Stainless Steel Bar

Group Stainless Steel Bars
Min. Order 1 piece
Terms of Payment all
Update Time 2020-06-01
Item specifics
ShapeRound
Similar steel grade1.4542, UNS S17400, 630, 17-4PH
Delivery conditionCold drawn, Annealed

Introduction of 17-4h steel:

Alloy 17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance. The alloy is furnished in the solution annealed condition (Condition A). It should not be used at temperatures above 572°F (300°C) or for cryogenic service. Optimal mechanical properties can be obtained by subjecting the alloy to age hardening heat treatments. Heat treatment in the 900°F (482°C) range produces the highest strength. 

Applications of 17-4h stainless:

• Aerospace — structural and parts
• Biomedical — hand tools
• Chemical Processing
• Food Process Equipment
• Gate Valves
• Mechanical Components
• Nuclear Waste Processing and Storage
• Oil and Gas Production — foils, helicopter deck platforms, etc.
• Pulp and Paper — paper mill equipment

Similar Steel grade of 17-4h:

DIN

ASTM

EN

UNS

AFNOR

CNU

GB

1.4542

Grade 630(AMS 5604B)

X5CrNiCuNb 16-4

S17400

Z5

17-4PH

0Cr17Ni4Cu4Nb

17-4h Chemical Composition (%)

C

Si

Mn

P

S

Cr

Ni

Cu

Nb

0.07 max

1.0 max

1.0 max

0.030 max

0.035 max

15.5-17.5

3.0-5.0

3.0-5.0

0.15-0.45

Size and Delivery Condition
Diameter : 10-300 mm ; Length Max 9 meters.
Optional Process : Hot rolled / Cold Drawn
Delivery Condition : Annealed 
Surface ; Bright / Ground / Peeled