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Quick Details

  • Grade: 400 Series
  • Standard: ASTM, AISI, DIN, EN
  • Length: on request
  • Thickness: 0.3mm ~
  • Width: 2500mm max.
  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: Changjiang
  • Model Number: 17-4PH, UNS S17400, 630
  • Type: Plate
  • Application: aerospace, chemical, petrochemical, food processing...
  • Certification: ISO
  • Production Standard: ASTM A 693, AMS 5604

Packaging & Delivery

Packaging Details Seaworthy packaging.
Delivery Time within 45 days after receipt 30% of value.

17-4PH, UNS S17400, 630 precipitation hardening stainless steel sheets / plates / strips / coils


17-4PH is a martensitic precipitation hardening stainless steel that provides an outstanding combination of high strength, 

good corrosion resistance, good mechanical properities at temperatures up to 600°F ( 316°c ), good toughness in both base metal and welds, and shorttime , low temperature heat treatments that minimize warpage and scaling. This versatile material is widely used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries.


Chemical comosition ( weight % )

Carbon 0.07 max

Manganese 1.00 max

Phosphorus 0.040 max

Sulfur 0.030 max

Silicon 1.00 max

Chromium 15.00 - 17.50

Nickel 3.00 - 5.00

Copper 3.00 - 5.00

Columbium plus Tantalum 0.15 - 0.45


The 17-4PH stainless steel can be supplied in forms of sheets, strips, plates, round bars.


Delivery state

Solution treated 

& Aged 


Ultimate Tensile strength: 135 KSI min. ( 930 Mpa min. )

Yield strength: 105 KSI min. ( 725 Mpa min. )

Elongation: 8% min.

Hardness: RC 38 max.


* for special request, please contact us.


We are looking forward to your enquiries.

Please call +86 151 9025 7143, skype: paul_luhongxiang or send an email to

export @ ahoneststeel dot com

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