Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Management System Certification:
ISO 9001, ISO 9000, ISO 14001
Sample Available
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17-4pH Forging, 17-4pH Flat Bar, 17-4pH Stainless Forging manufacturer / supplier in China, offering Good Offer 17-4pH Stainless Steel Forging, Hot Selling F317L (UNS S31703, 19Cr, 13Ni, 3.5Mo) Forgings, The Best Price for Duplex Stainless Steel Seamless Heat Exchanger Annealed Tubes and so on.

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Good Offer 17-4pH Stainless Steel Forging

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Min. Order / Reference FOB Price
50 Meters US $2-5/ Meter
Port: Shanghai, China
Production Capacity: 20 Tons/ Month
Payment Terms: L/C, T/T
Type: Stainless Steel Bars
Standard: ASTM, AISI
Grade: 400 Series
Certification: ISO
Shape: Round
Technique: Forged

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Basic Info

Model NO.: UNS S17400, Type 630
Surface Treatment: Machined
Dia: Lees Than 3000mm
THK: Less Than 100mm
Transport Package: Wooden Cases
Specification: OD </= 3000MM
Origin: China
HS Code: 7304419000

Product Description

17-4pH Stainless Steel

17-4 Precipitation Hardening also known as Type 630 is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance. High strength is maintained to approximately 600 degrees Fahrenheit (316 degrees Celsius).

General Properties

Alloy 17-4 pH is a precipitation hardening martensitic stainless steel with Cu and Nb/CB additions. The grade combines high strength, hardness (up to 572° F / 300° C), and corrosion resistance.

Mechanical properties can be optimized with heat treatment. Very high yield strength up to 1100-1300 MPa (160-190 ksi) can be achieved.

The grade should not be used at temperatures above 572° F (300° C) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to Alloy 304 or 430

Offshore (foils, helicopter deck platforms, etc. )
Food industry
Pulp and paper industry
Aerospace (turbine blades, etc. )
Mechanical components
Nuclear waste casks

Corrosion Resistance

Alloy 17-4 pH withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to Alloy 304 in most media.

If there are potential risks of stress corrosion cracking, the higher aging temperatures then must be selected over 1022° F (550° C), preferably 1094° F (590° C). 1022° F (550° C) is the optimum tempering temperature in chloride media.

1094° F (590° C) is the optimum tempering temperature in H2S media.

The alloy is subject to crevice or pitting attack if exposed to stagnant seawater for any length of time.

It is corrosion resistant in some chemical, petroleum, paper, dairy and food processing industries
Commodity17-4 PH Forging, Flat Bar and  CNC precision machined products
Process methodForged, CNC Machined
Materials Grades17-4 PH, UNS S17400 
Standards:ASTM A182 or closer
SizeRing: OD up to 2000 mm, High to 500 mm or as per drawing. 
Flange:NPS 1/2" to 48" or as per drawing. 
Block, Disc: as the request.
ConditionAnneal, Normalize, Normalize+Temper, Quench+ Temper, as requirements
Inspection Testing Mechanical Test, Hardness Test, Inter-granular corrosion Test.
Ultrasonic Test, PT, MT, Hydraulic Test, or as required
CertificateEN 1024 3.1/ 3.1B/ 3.2, PED, DNV, TUV.
    PackingWooden case/ Steel framed plywood case/ simple packing.
  Delivery TimeBy mutual agreement.

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