Stainless Steel 15-5PH Pipe Fittings Manufacturer, Supplier and Exporter in India
Mcneil Instruments is a leading exporter and stockist of Stainless Steel 15-5PH Pipe Fittings in India, offering fittings designed for high strength, corrosion resistance, and excellent mechanical performance. 15-5PH is a martensitic precipitation hardening stainless steel that provides better toughness and transverse properties than 17-4PH.
These fittings are ideal for structural and high-pressure applications in aerospace, nuclear, and petrochemical industries. 15-5PH Pipe Fittings exhibit good corrosion resistance and can be hardened by low-temperature heat treatment to suit critical operational conditions.
Stainless Steel 15-5PH pipe fittings are precipitation-hardening stainless steel components designed for applications that demand high strength, toughness, and dimensional stability with reliable corrosion resistance. Developed as an improved version of 17-4PH, 15-5PH offers better transverse toughness and more consistent mechanical properties, especially in thicker sections.
What this really means is stronger, more predictable performance in precision and pressure-critical piping systems.
Specifications of Stainless Steel 15-5PH Pipe Fittings
| Specifications | ASTM A564 / ASME SA564 |
| Material Grade | 15-5PH (UNS S15500) |
| Size Range | 1/2″ NB to 24″ NB |
| Type | Seamless / Welded / Forged |
| Form | Elbow, Tee, Reducer, Cap, Stub End |
| Condition | H900 to H1150 |
| Ends | Bevelled / Plain / Threaded |
| Standards | ASME B16.9, B16.11, MSS SP-43 |
Why Stainless Steel 15-5PH Pipe Fittings Are Preferred
Here’s the thing: 15-5PH delivers excellent strength through heat treatment while offering better toughness and uniformity than many martensitic grades. It’s widely chosen when components must hold tight tolerances under load without distortion.
Its balance of strength, toughness, and corrosion resistance makes it ideal for engineered systems where performance consistency matters more than extreme chemical resistance.
Key Features and Benefits
- Precipitation-hardening martensitic stainless steel
• High yield and tensile strength
• Improved toughness compared to 17-4PH
• Excellent dimensional stability after heat treatment
• Good fatigue and wear resistance
• Reliable corrosion resistance in industrial environments
These qualities make 15-5PH pipe fittings well suited for high-precision and load-bearing applications.
Types of Stainless Steel 15-5PH Pipe Fittings
Stainless Steel 15-5PH pipe fittings are available in standard industrial forms:
Elbows – Direction changes with high mechanical strength
Tees & Crosses – Strong, balanced branching connections
Reducers – Smooth size transitions under pressure
Couplings & Unions – Secure straight-through joints
Caps & Plugs – Pressure-tight pipe end sealing
Stub Ends – Used where alignment and dismantling are required
Each fitting is manufactured for strength, accuracy, and long-term reliability.
Where Stainless Steel 15-5PH Pipe Fittings Are Used
15-5PH pipe fittings are commonly used in industries where strength and toughness are critical:
Aerospace Industry – Structural and hydraulic systems
Oil & Gas – High-pressure mechanical assemblies
Power Generation – Turbine and auxiliary piping
Defense & Heavy Engineering – Load-bearing systems
Marine Equipment – High-strength mechanical piping
Industrial Machinery – Precision pressure components
15-5PH is often selected when better toughness and consistency than 17-4PH are required.
How to Choose the Right 15-5PH Pipe Fittings
When selecting Stainless Steel 15-5PH pipe fittings, consider:
Required strength and toughness
Operating pressure and mechanical load
Heat treatment condition (H900, H1025, H1150, etc.)
Corrosion exposure level
Applicable engineering standards
For precision applications where strength and reliability must stay consistent, 15-5PH is a strong choice.
Manufacturing, Supply & Export from India
We manufacture, supply, and export Stainless Steel 15-5PH pipe fittings using certified raw materials and controlled heat-treatment processes. Our fittings are:
Machined with tight dimensional tolerances
Heat treated for specified mechanical properties
Tested for strength and pressure integrity
Finished for industrial and engineering use
Securely packed for domestic and international delivery
We support EPC contractors, aerospace suppliers, power plants, and global buyers with dependable quality and delivery.
Why Choose Mcneil Instruments?
Proven Expertise: Leading manufacturer, supplier, and exporter of Stainless Steel 15-5PH Pipe Fittings, delivering precision-engineered solutions for high-strength, critical applications.
Global Standards: Produced in compliance with ASTM A564 / ASME SA564 and ASME B16.9, B16.11, MSS SP-43, ensuring durability, accuracy, and reliability.
Premium Material Quality: Made from 15-5PH (UNS S15500) precipitation-hardening stainless steel, offering superior strength, toughness, and corrosion resistance, even under high-pressure and high-temperature conditions.
Comprehensive Range: Available in seamless, welded, and forged forms, including elbows, tees, reducers, caps, and stub ends, suitable for aerospace, nuclear, chemical, and marine industries.
High-Performance Reliability: Maintains mechanical properties up to 600°F (316°C) and resists stress corrosion cracking, pitting, and fatigue, making it ideal for critical operations.
Custom Solutions: Tailored fittings and configurations are available to meet specific operational, pressure, and size requirements.
Timely Delivery: Supported by a robust inventory and efficient logistics network, ensuring on-time supply of both standard and customized orders.
Get Your Stainless Steel 15-5PH Pipe Fittings Today – Contact Mcneil Instruments to source high-strength, corrosion-resistant fittings engineered for durability, precision, and long-term performance in demanding industrial environments.
Frequently Asked Questions – Stainless Steel 15-5PH Pipe Fittings
What is the difference between 15-5PH and 17-4PH pipe fittings?
15-5PH offers better toughness and more uniform mechanical properties, especially in thicker sections.
Are Stainless Steel 15-5PH pipe fittings corrosion resistant?
Yes. They perform well in mild to moderate industrial environments, though not as aggressively as duplex grades.
Can Stainless Steel 15-5PH pipe fittings be welded?
Yes, but controlled welding and post-weld heat treatment are recommended.
Are 15-5PH fittings suitable for high-pressure systems?
Absolutely. Their high yield strength makes them ideal for pressure and structural applications.
Where are 15-5PH pipe fittings commonly used?
Aerospace, oil & gas, power generation, defense, marine equipment, and heavy engineering systems.