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17-7PH 1.4568 S17700 Cold Rolled Stainless Steel Sheet/strip/coil

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17-7PH 1.4568 S17700 Cold Rolled Stainless Steel Sheet/strip/coil
Latest company news about 17-7PH 1.4568 S17700 Cold Rolled Stainless Steel Sheet/strip/coil

17-7 PH is a precipitation hardening semi-austenitic stainless steel.

It is able to develop a very high strength due to the strengthening of aluminium particles.

It is usually found in strip or wire form for spring applications.

 

AISI/UNS EN/DIN JIS Chemical composition %

17-7PH

S17700

1.4568

X7CrNiAl17-7

SUS631 C 0.09 max, Cr 16.00~18.00, Ni 6.5~7.75, Al 0.75~1.50

 

Approximate Composition – 17% Cr, 7%Ni, 0.05% C, 1.0% Al (Exact composition ranges vary between EN and ASTM standards).

 

This grade combines the following characteristics:

Good corrosion resistance better than 17-4 PH close to that of 304
Very high strength up to 1700 MPa minimum UTS in EN 10151 or 1655 MPa minimum in ASTM A693
Excellent fatigue strength
Low distortion in heat treatment
Weldable with matching consumables

 

17-7 PH provides a combination of very high strength and moderate corrosion resistance.

Its metallurgy is complex involving several stages of processing to develop the necessary microstructure.

The highest level of strength is achieved by cold working to produce martensite followed by an ageing treatment at about 480°C.

This restricts the use of the grade to thin sheet and wire products.

Other heat treatment conditions are also available to produce softer and more ductile material.

 

Applications which illustrate these features include:

Springs, Belleville washers, aerospace, orthodontic wire, strain gauge, load cell, pressure transducer.

 

latest company news about 17-7PH 1.4568 S17700 Cold Rolled Stainless Steel Sheet/strip/coil  0

Pub Time : 2018-11-15 16:00:10 >> News list
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