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Introduction of 17-7PH (631) precitipation harding stainless steel
17-7PH is a semi-austenitic precipitation-hardening stainless steel that provides high strength and hardness, excellent fatigue properties, good corrosion resistance and minimum distortion upon heat treatment. It is easily formed in the annealed condition, and then hardened to high strength levels by simple heat treatments to Conditions RH 950 and TH 1050. The exceptionally high strength of Condition CH 900 offers many advantages where limited ductility and workability are permissible.
In its heat-treated condition, this alloy provides exceptional mechanical properties at temperatures up to 900 °F (482 °C). Its corrosion resistance in both Conditions TH 1050 and RH 950 is superior to that of the hardenable chromium types. In some environments, corrosion resistance approximates that of the austenitic chromiumnickel stainless steels. In Condition CH 900, its general corrosion resistance is comparable to that of Type 304 stainless steels. Fabricating practices recommended for other chromium-nickel stainless steels can be used for this material.
Characters
l High strength
l Moderately resistant to corrosion
l Good elasticity,
l Good resistance to relaxation and fatigue resistance
Applications of 17-7PH (631) precitipation harding stainless steel
l Springs
l Washers
l Blades
l Fluid seal springs
l Diaphragms
l Pressings
l Flexures
l Encapsulated bellows
Equal grades
631, SUS631, UNS S17700
Chemical composition (%)
Carbon 0.09 max.
Manganese 1.00 max.
Phosphorus 0.040 max.
Sulfur 0.030 max.
Silicon 1.00 max.
Chromium 16.00 – 18.00
Nickel 6.50 – 7.75
Aluminum 0.75 – 1.50
Standards
ASTM A693 Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
ASTM A564 Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
AMS 5528 Sheet, Strip and Plate
AMS 5529 Sheet and Strip – Cold Rolled
ASTM A 693 Plate, Sheet and Strip
Forms available at A-one Alloy
Bar, strip, wire, seamless pipe, forging
Delivery of 17-7PH (631) precitipation harding stainless steel
Plenty of bars in stock. Strip could be delivered within 2 weeks. For other products please contact A-one Alloy for confirmation.
* 17-4 PH, 17-7 PH and PH 15-7 Mo areregistered trademarks of AK Steel Corporation
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2005
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Site Member
About XUNSHI
Suzhou Xunshi New Material Co., Ltd (refered as Xunshi afterwards) is a professional supplier of high performance alloys. Our factory is specialized in manufacturing Nickel alloys & Cobalt alloys for 10+ years，with a company mission to provide a high quality, reliable... About XUNSHI
Suzhou Xunshi New Material Co., Ltd (refered as Xunshi afterwards) is a professional supplier of high performance alloys. Our factory is specialized in manufacturing Nickel alloys & Cobalt alloys for 10+ years，with a company mission to provide a high quality, reliable...
