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Quality 17-4PH Stainless Steel Coil High Strength Corrosion Resistant Aerospace Grade for Industrial Applications factory
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17-4PH Stainless Steel Coil High Strength Corrosion Resistant Aerospace Grade for Industrial Applications

Brand Name: Wuxi Sylaith Special Steel Co., LTD
Model Number: 304,304L,304H,321,316L,303,316H,347H,317H,310S, 304D,316Ti,309S,309Si2,310Si2
Place of Origin: JIANGSU, CHINA
Certification: MTC
Minimum Order Quantity: 100KG
Supply Ability: 1000+ton/tons+month

Product Details


Application: Construction,Kitchenware,Decoration,chemical,Industry Standard: GB,ASTM,AISI,JIS,DIN
Width: 600mm-1250mm,30mm To 1250mm,100mm~2500mm,1000-1500,600--1800mm Al Available Type: Steel Coil,Steel Plate,corten Steel,Strip
Technique: Cold Rolled,Hot Rolled,Cold Rolled-hot Dipped Galvanized-color Coated Thickness: 0.2-2.0mm,0.3-600mm,Customized,0.12MM-1.2MM,0.2-2.0mm Or As Required
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High Strength 17-4PH Stainless Steel Coil

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Corrosion Resistant Precipitation Hardening Stainless Steel Coil

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Aerospace Grade 1.4542 Stainless Steel Coil

Product Description

1.4542 X5CrNiCuNb16-4 AISI 17-4PH S17400 Precipitation Hardening Stainless Steel Coil
Product Overview

1.4542 X5CrNiCuNb16-4 AISI 17-4PH S17400 Stainless Steel Coil is a premium precipitation hardening stainless steel product designed for applications requiring a combination of high strength, excellent corrosion resistance, superior hardness, and good fabrication performance.

Also known as 17-4PH Stainless Steel, this grade belongs to martensitic precipitation-hardening stainless steels. It achieves extremely high mechanical strength through heat treatment while maintaining corrosion resistance comparable to conventional stainless steels such as AISI 304.

Key Applications
  • Aerospace engineering
  • Oil and gas equipment
  • Marine engineering
  • Chemical processing
  • Nuclear power systems
  • Pressure equipment
  • High-performance machinery
Main Advantages
  • High tensile strength and hardness
  • Excellent corrosion resistance
  • Good weldability
  • Good machining performance
  • Excellent resistance to oxidation up to approximately 539°C
  • Stable performance in fresh water, marine atmosphere, and industrial environments
17-4PH Stainless Steel Coil Product Image
Technical Specifications
ItemSpecification
Product Name1.4542 X5CrNiCuNb16-4 AISI 17-4PH S17400 Stainless Steel Coil
Material Number1.4542
DIN DesignationX5CrNiCuNb16-4
AISI Grade17-4PH / S17400
Steel TypeMartensitic Precipitation Hardening Stainless Steel
StandardASTM / GB / JIS / DIN / BS
Product FormCoil / Plate / Sheet
Width1000mm - 3000mm
Length1000mm - 12000mm
ThicknessCustomized
Production ProcessHot Rolled
Heat TreatmentSolution Treatment / Aging Treatment
Surface TreatmentCoated / Customized
CertificationISO9001:2008
Chemical Composition (%)
ElementContent
Carbon (C)≤0.07%
Silicon (Si)≤0.70%
Manganese (Mn)≤1.50%
Chromium (Cr)15.0-17.5%
Nickel (Ni)3.0-5.0%
Copper (Cu)3.0-5.0%
Molybdenum (Mo)≤0.60%
Niobium (Nb)Added for precipitation hardening
Mechanical Properties After Aging
Aging ConditionYield Strength (N/mm²)Tensile Strength (N/mm²)Elongation
480°C1170131010%
550°C1000107012%
595°C79596514%
620°C72593016%
Industry Applications
Aerospace Industry: Aircraft fittings, fasteners, landing system components, jet engine parts
Oil & Gas Industry: Oil field valves, pump shafts, downhole equipment, high-pressure components
Marine Engineering: Ship components, offshore platforms, marine equipment
Chemical Processing: Chemical processing parts, pressure equipment, industrial machinery
Nuclear Power: Reactor components, precision mechanical parts, high-strength fasteners
Frequently Asked Questions
Q1: What is 1.4542 stainless steel?
1.4542 is the European designation for 17-4PH stainless steel, also known as AISI S17400. It is a precipitation-hardening stainless steel with high strength, excellent corrosion resistance, and good fabrication performance.
Q2: What is the difference between 17-4PH and normal stainless steel?
Compared with conventional stainless steels such as 304 or 316, 17-4PH provides significantly higher strength and hardness through precipitation hardening while maintaining good corrosion resistance.
Q3: Can 17-4PH stainless steel be welded?
Yes. 17-4PH can be welded using shielded fusion welding and resistance welding processes. AWS E/ER630 filler materials are recommended when matching base metal properties are required.
Q4: What industries use 17-4PH stainless steel?
17-4PH stainless steel is widely used in aerospace, oil and gas, marine engineering, chemical processing, nuclear power, and high-performance machinery.
Q5: What certificates are available for 1.4542 stainless steel coil?
We provide ISO9001 quality certification, Mill Test Certificate (MTC), and third-party inspection reports such as TUV, CE, SGS, and other certifications upon request.

Product Highlights

1.4542 X5CrNiCuNb16-4 AISI 17-4PH S17400 Precipitation Hardening Stainless Steel Coil Product Overview 1.4542 X5CrNiCuNb16-4 AISI 17-4PH S17400 Stainless Steel Coil is a premium precipitation hardening stainless steel product designed for applications requiring a combination of high strength, ...

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