Horizon Metal and Alloys is a premier Stainless Steel 15-5 PH nut and bolt manufacturer in India. We offer a comprehensive range of premium-quality 15-5 PH fasteners, including hex bolts, stud bolts, threaded rods, heavy hex nuts, washers, and custom fastening solutions engineered for critical and high-stress industrial applications.
Stainless Steel 15-5 PH (UNS S15500) is a martensitic, precipitation-hardening stainless steel. It is highly regarded for its exceptional high strength, excellent hardness, and superior transverse toughness compared to 17-4 PH. Because of its excellent resistance to corrosion and high pressure, 15-5 PH fasteners are the material of choice for the aerospace, petrochemical, chemical processing, and nuclear industries.
| Specification | Details |
| Material Grade | Stainless Steel 15-5 PH |
| UNS Number | S15500 |
| WNR / DIN Number | 1.4545 |
| ASTM Standard | ASTM A564 / ASME SA564 |
| Product Type | Nuts, Bolts, Stud Bolts, Washers, Threaded Rods |
| Size Range | M3 to M100 |
| Length Range | Up to 5 Meters |
| Thread Type | Metric, UNC, UNF, BSW, BSP |
| Manufacturing Process | Hot Forged, Cold Forged, CNC Machined |
| Surface Finish | Plain, Polished, Passivated, Teflon Coated |
| Certification | EN 10204 3.1, Mill Test Certificate (MTC) |




| Element | Composition (%) |
| Chromium (Cr) | 14.00 – 15.50 |
| Nickel (Ni) | 3.50 – 5.50 |
| Copper (Cu) | 2.50 – 4.50 |
| Manganese (Mn) | 1.00 Max |
| Silicon (Si) | 1.00 Max |
| Niobium (Nb) + Tantalum (Ta) | 0.15 – 0.45 |
| Carbon (C) | 0.07 Max |
| Phosphorus (P) | 0.04 Max |
| Sulfur (S) | 0.03 Max |
| Iron (Fe) | Balance |
| Property | Value |
| Tensile Strength | 1070 MPa (Min) |
| Yield Strength (0.2% Offset) | 1000 MPa (Min) |
| Elongation | 12% (Min) |
| Hardness | 35 HRC (Min) |
| Density | 7.78 g/cm³ |
Due to its combination of high strength and excellent corrosion resistance, 15-5 PH fasteners are widely utilized in:
Aerospace Aircraft Components
Chemical & Petrochemical Processing
Nuclear Reactors
Food Processing Equipment
Marine Engineering
Pulp and Paper Industries
We are a trusted Stainless Steel 15-5 PH Nut Bolt Manufacturer in Mumbai, India and export our products to customers across the USA, Canada, United Kingdom, Germany, France, Italy, Spain, UAE, Saudi Arabia, Qatar, Oman, Kuwait, Singapore, Malaysia, Indonesia, Thailand, Japan, South Korea, China, Australia, South Africa, Brazil, Argentina, and many other international markets.
What is the UNS number for Stainless Steel 15-5 PH?
» The UNS designation for Stainless Steel 15-5 PH is UNS S15500.
How does 15-5 PH differ from 17-4 PH?
» While both are precipitation-hardening stainless steels with similar high strength, 15-5 PH is ferrite-free. This gives it better transverse toughness, ductility, and forgeability compared to 17-4 PH.
Can you manufacture custom 15-5 PH fasteners?
» Yes, Horizon Metal and Alloys specializes in manufacturing custom 15-5 PH hex bolts, studs, and nuts tailored to your specific industrial drawings and requirements.
We are a leading Stainless Steel 15-5 PH nut and bolt manufacturer in India, supplying premium-quality 15-5 PH fasteners, hex bolts, stud bolts, threaded rods, heavy hex nuts, and industrial fastening solutions for demanding applications worldwide. As a trusted Stainless Steel 15-5 PH nut and bolt manufacturer in Mumbai, India, we serve major industrial cities including Chennai, Pune, Ahmedabad, Delhi, Hyderabad, Bengaluru, and Kolkata, delivering products manufactured in accordance with international quality standards.
Our global export network enables us to supply premium quality Hastelloy C-22 Nuts and Bolts to customers across North America. We are recognized as a reliable Hastelloy C-22 Nut Bolt Manufacturer in Houston, USA, Hastelloy C-22 Fasteners Supplier in New York, USA, Hastelloy C-22 Bolt Manufacturer in Los Angeles, USA, and Hastelloy C-22 Stud Bolt Supplier in Chicago, USA. We also export to major Canadian cities including Toronto, Vancouver, and Calgary, as well as customers in Mexico City, Mexico.
Our global export network enables us to supply premium quality Stainless Steel 15-5 PH Nuts and Bolts to customers across North America. We are recognized as a reliable Stainless Steel 15-5 PH Nut Bolt Manufacturer in Houston, USA, Stainless Steel 15-5 PH Fasteners Supplier in New York, USA, Stainless Steel 15-5 PH Bolt Manufacturer in Los Angeles, USA, and Stainless Steel 15-5 PH Stud Bolt Supplier in Chicago, USA. We also export to major Canadian cities including Toronto, Vancouver, and Calgary, as well as customers in Mexico City, Mexico.
We are a trusted Hastelloy C-22 Nut Bolt Manufacturer in Dubai, UAE, and a reliable supplier in Abu Dhabi, Riyadh, Jeddah, Doha, Muscat, and Kuwait City. Our products are extensively used in oil and gas, desalination plants, refineries, and petrochemical facilities throughout the Middle East region.
Our export operations cover major Asian markets including Singapore, Kuala Lumpur, Bangkok, Jakarta, Ho Chi Minh City, Manila, Seoul, Tokyo, Osaka, Shanghai, and Beijing. As a leading Hastelloy C-22 Fasteners Supplier, we provide high-performance fastening solutions for chemical plants, marine applications, and industrial processing industries across the Asia-Pacific region.
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Our product portfolio includes Stainless Steel 15-5 PH Hex Bolt Manufacturer USA, Stainless Steel 15-5 PH Heavy Hex Nuts Supplier UK, Stainless Steel 15-5 PH Stud Bolts Manufacturer Germany, Stainless Steel 15-5 PH Threaded Rod Supplier UAE, Stainless Steel 15-5 PH Washers Manufacturer Singapore, Stainless Steel 15-5 PH Socket Head Cap Screw Supplier Australia, Stainless Steel 15-5 PH U Bolts Manufacturer Canada, and Stainless Steel 15-5 PH Fasteners Exporter India.
As a globally recognized UNS S15500 Stainless Steel 15-5 PH nuts and bolts manufacturer worldwide, we manufacture products in compliance with ASTM A564 / ASME SA564 Stainless Steel 15-5 PH fasteners standards for critical industrial applications. We are also a leading Stainless Steel 15-5 PH industrial fasteners manufacturer and Stainless Steel 15-5 PH nut bolt stockist and exporter worldwide, delivering premium quality fastening solutions to customers across the globe.
We specialize in manufacturing high-quality fasteners that cater to diverse industries, including oil & gas, petrochemical, marine, power generation, aerospace, and construction.
17, Ramkutir Building, 12th Khetwadi Cross Lane, Mumbai 400004
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Tel: +91 9821037597
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