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Alloy & Stainless Steels

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Xi'an Aircraft Industry Titanium Industry Co., Ltd.

TEL:029-89699396

FAX:029-89699396

WEB:http://www.xacti.com.cn

ADD:No.19, Zhuque street Xi’an Shaanxi

Stainless Steel 254SMO Tube (Wst 1.4547/ UNS S31250)

Technical Data Sheet

17-4 PH  is a martensitic, precipitation-hardening stainless steel that provides an outstanding combination of high strength and hardness along with excellent corrosion resistance. 17-4 PH has good fabricating characteristics and can be age hardened by a single step, low temperature treatment. 17-4 PH is a versatile material widely used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries.

Chemical Composition Limits
Weight%CrNiMoCuNMnSiSCP
254SMO20186-6.50.5-1.00.18-0.221 max1 max0.010 max0.20 max0.30 max

Alloy 254SMO (UNS S31250) is an austenitic stainless steel, similar to alloy 904L, but with increased molybdenum and nitrogen contents, to be used in seawater, oil and gas piping systems on offshore production platforms and other aggressive chloride bearing media. With a excellent resistant to pitting, crevice corrosion and to stress-corrosion cracking.

Typical Mechanical Properties

AlloyTensile Strength MPaYield Strength (0.2% Offset) MPaElongation (%)
254SMO650-85030035

Availability

Alloy 254SMO Tube (Alloy 254) is available in Instrument tube, Precision tube and Hydraulic tube. For all stock availability contact Sales.

Specifications

WS 1.4547

UNS S31254

6 Mo

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