> Strength Harden Stainless Steel

 

 

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.