| Grade | US Aerospace/Military | US Commercial | British Specification | European Specification | Other |
| 17-4Ph | AMS 5604 Sheet / Strip / Plate AMS 5622 (Vac Melt) Bar AMS 5642 Bar, AMS 5643 Bar MIL-S-25043 |
ASTM A564 Grade 630 ASTM A484 / ASME SA484 ASTM A564 / ASME SA564 ASTM A693 / ASME SA693 |
Werkstoff 1.4542 X5CrNiCuNb16-4 AFNOR Z6CNU1704 |
UNS S17400 |
| Chemical Composition Limits | |||||||||||
| Weight% | C | Si | Mn | P + S max | Cr | Ni | Cb + Ta | Cu | |||
| AMS 5604 17-4PH | 0.07 max | 1.0 max | 1.0 max | 0.04 P 0.03 S |
15.0 - 17.5 | 3.0 - 5.0 | 5 X C / 0.45 | 3.0 - 5.0 | |||
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.
Corrosion Resistance
17-4 PH Stainless Steel withstands corrosive attack better than any of the standard hardenable stainless steels and is comparable to Type 304 in most media.
Formability
In Condition A, 17-4 PH is hard, therefore forming normally should be limited to mild operations. However, formability can be greatly improved by heat treating before cold working or by use of hot-forming methods.
| Condition |
Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
| Cond A | - | - | - | - | 363 HB max |
| H900 | 190 | 170 | 10 | 40 | 388-444 |
| H925 | 170 | 155 | 10 | 44 | 375-429 |
| H1025 | 155 | 145 | 12 | 45 | 331-401 |
| H1075 | 145 | 125 | 13 | 44 | 311-375 |
| H1100 | 140 | 115 | 14 | 45 | 302-363 |
| H1150 | 135 | 105 | 16 | 50 | 277-352 |
| Condition |
Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D (Values are for sheet <0.1874" thick) | % Reduction of Area | Rockwell C Hardness |
| Cond A | - | - | - | - | 38 max |
| H900 | 190 | 170 | 5 | - | 40-47 |
| H925 | 170 | 155 | 5 | - | 38-45 |
| H1025 | 155 | 145 | 5 | - | 35-42 |
| H1075 | 145 | 125 | 5 | - | 33-39 |
| H1100 | 140 | 115 | 5 | - | 32-38 |
| H1150 | 135 | 105 | 8 | - | 28-37 |
17-4 PH is available in Bar, Wire, Forgings, Tube, Rings, Plate, Sheet, Strip and Welding Wire. For all stock availability of contact Sales
Specifications
AMS 5604 Sheet, Strip Cold Rolled and Plate.
AMS 5622 (Vac Melt) Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
AMS 5642 Bar
AMS 5643 Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
MIL-S-25043
ASTM A564 Grade 630
ASTM A484 / ASME SA484
ASTM A564 / ASME SA564
ASTM A693 / ASME SA693 Plate, Sheet and Strip
Werkstoff 1.4542
X5CrNiCuNb16-4
AFNOR Z6CNU1704
UNS S17400
Harsh Steel export Stainless Steel 17-4 PH to below countries.
Harsh steel is a major stockist and Exporter of Stainless Steel 17-4 PH to many countries of the world such as Singapore, Brisbane, Sydney, Melbourne, Australia, Houston, TX, San Diego, San Francisco, Atlanta, USA, Brentford, United Kingdom, Phoenix, Ireland, New Zealand and Canada, Western Australia , Queensland, New South Wales, South Australia, Victoria, Australian Capital Territory, Tasmania, Northern Territory, Ontario, British Columbia, Yukon Territory, Alberta, Manitoba, Saskatchewan, New foundland, Prince Edward Island, New Brunswick, Nova Scotia, Eastern Cape, Gauteng, Kwazulu-Natal, Western Cape, England, Scotland, Wales, Northern Ireland, Lagos, Abuja Capital Territory, Vadodara, Mumbai, Chennai, New Delhi, Mahape, Gurgaon, Noida, Bangalore, Coimbatore, Cochin, Ash Sharqiyah, Ar Riyad, Makkah, Dhahran, Riyadh, Jiddah, Jeddah, Masqat, Kwazulu-Natal, Gauteng, Western Cape, Free State, Eastern Cape, Alberta, Saskatchewan, British Columbia, Newfoundland, New Brunswick, Manitoba, Ontario, Nova Scotia, Quebec, Calgary, Edmonton, Vancouver, Toronto, Birmingham, Brentford, Manchester, Bristol, Sheffield, Milton Keynes, London, Poplar, Edinburgh, Thames Ditton.