Leading Stainless Steel 17-4 PH
Fasteners Manufacturer & Exporter in India
Need high strength and corrosion resistance in the same fastener? 17-4 PH is the stainless grade engineers specify when 304 and 316 are not strong enough.
Ananka manufactures 17-4 PH bolts, nuts, stud bolts, screws, and washers at our facility in Vasai, Maharashtra. We produce to your drawing or standard, supply material test certificates, and ship from Mumbai port. Send your size, quantity and heat-treatment condition and we will quote against it.
About Stainless Steel 17-4 PH Fasteners
17-4 PH (also written 17 4 PH, UNS S17400, AISI 630) is a martensitic precipitation-hardening stainless steel containing chromium, nickel, copper, and niobium. A low-temperature aging treatment gives it much higher strength and hardness than annealed austenitic grades, while keeping good corrosion resistance. It is magnetic, and it keeps its properties in service up to roughly 315°C (600°F).
Typical uses are valve and pump components, aerospace and defence hardware, subsea and marine fittings, and chemical processing equipment.
For standard austenitic grades, see Stainless Steel 316 and 310. For corrosion-led service, see Duplex and Super Duplex.
17-4 PH Fasteners We Manufacture
Browse our related ranges: Bolts, Nuts, Screws, Washers, Stud Bolts and Carriage Bolts.
Standard Specification SS 17-4 PH
| Grade | 17-4 PH Stainless Steel (UNS S17400 / AISI 630) |
|---|---|
| Material Standard | ASTM A564 / A693 Type 630, ASME SA564 |
| Fastener Standards | ASME B18.2.1 / B18.2.2, DIN, ISO, BS, or to drawing |
| Length | 3mm to 2000mm |
| Size | 3/16" to 2", M3 – M56, Custom Sizes |
| Form | Nuts, Bolts, Washers, Screws, Stud Bolts |
| Types | Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, etc |
| Packing of Stainless-Steel Fasteners: | IN BULK: pallet, carton / small boxes/pallet, or customer request |
17-4 PH Material Equivalent Grades
Equivalent designations you will see on purchase orders and drawings. Send us your PO or drawing and we will confirm the match before quoting.
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | SIS | GOST |
|---|---|---|---|---|---|---|---|
| 17-4 PH / AISI 630 | S17400 | 1.4542 | Z7CNU17-04 | X5CrNiCuNb16-4 | SUS630 | – | – |
17-4 PH Stainless Steel Chemical Composition (%)
| Grade | C | Mn | Si | P | S | Cr | Ni | Nb + Ta | Cu |
|---|---|---|---|---|---|---|---|---|---|
| 17-4 PH SS | 0.07 max | 1.0 max | 1.0 max | 0.040 max | 0.030 max | 15.0 – 17.5 | 3.0 – 5.0 | 0.15 – 0.45 | 3.0 – 5.0 |
17-4 PH Stainless Steel Mechanical Properties by Condition
17-4 PH strength depends on heat treatment, so we manufacture to the condition you specify.
| Condition | Density | Melting Point | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) |
|---|---|---|---|---|---|
| H900 | 7.75 g/cm³ | 1404 – 1440°C | 190 ksi (1310 MPa) | 170 ksi (1170 MPa) | 10 % |
| H1025 | 7.75 g/cm³ | 1404 – 1440°C | 155 ksi (1070 MPa) | 145 ksi (1000 MPa) | 12 % |
| H1150 | 7.75 g/cm³ | 1404 – 1440°C | 135 ksi (930 MPa) | 105 ksi (725 MPa) | 16 % |
Industrial Applications
Our 17-4 PH fasteners are engineered for critical high-performance environments:
- Oil & Gas Industries
- Petroleum Industries
- Nuclear Energy Sector
- Aerospace Industry
- Defence Industry
- Chemical Processing
- Marine Engineering
Packaging & Delivery Details
LC (Letter of Credit), TT (Telegraphic Transfer), Cheque, and others.
Packaged with care for safe transit. Options include pallets, cartons, or custom small boxes. Packaging charges as applicable.
Mumbai port, Maharashtra, India.
18% GST (As applicable).
What is 17-4 PH Stainless Steel Fasteners?
17-4 PH Stainless Steel fasteners are high-strength fastening components manufactured from precipitation hardening (PH) stainless steel. This alloy is known for its exceptional mechanical strength, corrosion resistance, and ability to maintain structural stability in demanding industrial environments.
17-4 PH stainless steel fasteners provide excellent performance at elevated temperatures and can retain their mechanical properties at temperatures up to approximately 600°F (315°C). In the aged condition, 17-4 PH reaches several times the yield strength of annealed 316 stainless steel, making it suitable for high-load and high-stress applications.
Due to their superior strength and corrosion resistance, 17-4 PH fasteners are widely used in aerospace, chemical processing, marine engineering, oil & gas, and heavy industrial equipment.
Export of 17-4 PH Fasteners to the USA, UK and Europe
Ananka exports 17-4 PH fasteners from Mumbai port and supports buyers in the USA, UK and Europe through our offices in Houston, Texas and Leeds, UK.
Standards we supply to by region
- USA: ASTM A564 / ASME SA564 material, ASME B18.2.1 / B18.2.2 inch-series sizes.
- UK: BS and ISO metric sizes.
- Europe: 1.4542 (X5CrNiCuNb16-4) material to EN 10088-3, DIN and ISO metric sizes.
Documentation and shipping
Each order ships with a material test certificate. Send your destination port and Incoterm (FOB, CIF or as required) and we will confirm lead time and freight.
17-4 PH Stainless Steel Fasteners: Frequently Asked Questions
What is the equivalent of 17-4 PH stainless steel?
17-4 PH is also known as AISI 630, UNS S17400, Werkstoff 1.4542 and EN X5CrNiCuNb16-4. Send your drawing or PO and we will confirm the grade before quoting.
What heat-treatment conditions do you supply?
We manufacture 17-4 PH fasteners in H900, H1025 and H1150 conditions, or to your specification.
Is 17-4 PH stainless steel magnetic?
Yes. It is martensitic, so it is magnetic, unlike annealed 304 and 316.
How does 17-4 PH compare to 316?
In the aged condition 17-4 PH is far stronger. 316 offers better general corrosion resistance, especially in chloride-rich environments, so the choice depends on load and environment.
Do you make custom 17-4 PH fasteners?
Yes. Send your drawing, quantity and condition, and we will quote.
Do you export 17-4 PH fasteners to the USA, UK and Europe?
Yes. We ship from Mumbai port and support buyers in the USA and UK through our Houston and Leeds offices. Send your destination port and we will confirm lead time and freight.
Which standards do you supply 17-4 PH fasteners to for export?
ASTM and ASME for the USA, BS and ISO for the UK, and EN, DIN and ISO for Europe, or to your drawing.
Need 17-4 PH fasteners to spec? Send your size, quantity and heat-treatment condition:
📞 +91 93245 81695
📧 sales@anankafasteners.com
Our team will confirm lead time and dispatch to your nearest port.
Your reliable manufacturing partner for high-quality industrial fasteners and global export.
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Contact
- Address: Plot No - 14, Dewan And Shah Udyog Nagar, Golani Naka, Vasai East, Vasai-Virar, Waliv, Maharashtra 401208
- Email:
sales@anankafasteners.com
yogita@anankafasteners.com
globalsales@anankafasteners.com