17-7pH Valve Seat Rings (UNS S17700, 1.4568, AISI 631, 17-7 pH)

Product Details
Customization: Available
Processing Object: Metal
Molding Style: Forging
Gold Member Since 2014

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Basic Info.

Model NO.
17-7pH
Molding Technics
Forging
Application
Machinery Parts
Material
SS
Heat Treatment
Quenching
Surface Treatment
Polishing
Forging Tolerance
+/-0.5mm
Standard
AISI
Material Grade of Valve Seat Rings
15-5pH
Transport Package
Plywooden Case
Specification
CE
Trademark
jj11
Origin
China
HS Code
722840000
Production Capacity
5000 Tons/Year

Product Description

We are professional 17-7pH Valve seat rings (UNS S17700, 1.4568, AISI 631, 17-7 pH)  from china


17-7PH is a precipitation hardening martensitic stainless steel that combines high strength and hardness with good corrosion resistance. Its corrosion resistance in conditions TH 1050 and RH 950 is generally superior to standard hardenable chromium types 400 series stainless steels, but is not as good as chromium-nickel type 304. Corrosion resistance in condition CH 900 is similar to type 304 in most environments. Like other martensitic steels, it is subject to cracking when exposed under stress in environments containing hydrogen sulfide. Such applications should be avoided.
Applications: Aerospace industry, chemical and food processing equipment, petroleum refining equipment, and general metalworking.

Chemical composition

%

Fe

Cr

Ni

C

Mn

Si

P

S

Al

min

balance

16.0

6.50

 

 

 

 

 

0.75

max

18.0

7.75

0.09

1.00

1.00

0.040

0.030

1.50
 

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