Stainless Steel 17- 4PH Pipe Fittings Manufacturer, Supplier and Exporter in India
Mcneil Instruments is a prominent manufacturer and supplier of Stainless Steel 17-4PH Pipe Fittings in India, specializing in high-strength fittings for demanding mechanical and structural applications. 17-4PH is a precipitation-hardening stainless steel that delivers high strength, good corrosion resistance, and excellent toughness.
Commonly used in aerospace, marine, and chemical industries, 17-4PH Pipe Fittings are known for maintaining strength and hardness even after heat treatment. Their adaptability to mechanical operations makes them ideal for critical pressure systems and structural assemblies.
Stainless Steel 17-4PH pipe fittings are high-strength, precipitation-hardening stainless steel components built for applications where mechanical strength, hardness, and corrosion resistance must work together. Grade 17-4PH is a martensitic stainless steel alloyed with chromium, copper, and niobium, and it gains its strength through heat treatment rather than cold working.
What this really means is you get exceptional strength with controlled corrosion resistance, making 17-4PH ideal for structural, pressure, and precision-engineered piping systems.
Specifications of Stainless Steel 17-4PH Pipe Fittings
| Specifications | ASTM A182 / ASME SA182 |
| Material Grade | 17-4PH (UNS S17400) |
| Size Range | 1/2″ NB to 24″ NB |
| Type | Seamless / Welded / Forged |
| Form | Elbow, Tee, Reducer, Cap, Stub End |
| Condition | Solution Treated, Aged (H900-H1150) |
| Ends | Bevelled / Plain / Threaded |
| Standards | ASME B16.9, B16.11 |
Why Stainless Steel 17-4PH Pipe Fittings Are Preferred
Here’s the thing: 17-4PH offers very high yield and tensile strength, far exceeding standard austenitic grades like 304 or 316. At the same time, it maintains good corrosion resistance in mildly corrosive environments.
Its ability to be heat treated to different strength levels makes it especially valuable in industries where load-bearing performance and dimensional stability matter more than extreme chemical resistance.
Key Features and Benefits
- Precipitation-hardening stainless steel alloy
• Very high mechanical strength and hardness
• Good corrosion resistance in industrial environments
• Excellent dimensional stability after heat treatment
• Good fatigue and wear resistance
• Suitable for pressure and structural applications
These properties make 17-4PH pipe fittings a strong solution for demanding mechanical systems.
Types of Stainless Steel 17-4PH Pipe Fittings
Stainless Steel 17-4PH pipe fittings are available in standard industrial configurations:
Elbows – Directional flow change with high load capacity
Tees & Crosses – Strong branching connections
Reducers – Controlled diameter transitions
Couplings & Unions – Secure straight-through joints
Caps & Plugs – Reliable pipe-end sealing
Stub Ends – Used where dismantling and alignment are required
Each fitting is manufactured to ensure strength, precision, and leak-free performance.
Where Stainless Steel 17-4PH Pipe Fittings Are Used
17-4PH pipe fittings are commonly used in industries where strength and reliability are critical:
Aerospace Industry – Structural and hydraulic systems
Oil & Gas – High-pressure and mechanical components
Power Generation – Turbine and auxiliary piping
Chemical Processing – Moderate corrosion environments
Marine Equipment – High-strength mechanical assemblies
Defense & Heavy Engineering – Load-bearing piping systems
17-4PH is often selected where strength is prioritized over extreme corrosion resistance.
How to Choose the Right 17-4PH Pipe Fittings
When selecting Stainless Steel 17-4PH pipe fittings, consider:
Required strength and hardness level
Operating pressure and mechanical stress
Heat treatment condition (H900, H1025, H1150, etc.)
Exposure to corrosive media
Applicable engineering and industry standards
For high-strength piping and structural applications, 17-4PH delivers dependable performance.
Manufacturing, Supply & Export from India
We manufacture, supply, and export Stainless Steel 17-4PH pipe fittings using certified raw materials and precision machining processes. Our fittings are:
Produced with tight dimensional tolerances
Heat treated to specified mechanical properties
Tested for strength and pressure integrity
Finished for industrial and engineering use
Securely packed for domestic and global shipment
We serve EPC contractors, aerospace suppliers, power plants, and global buyers with consistent quality and timely delivery.
Why Choose Mcneil Instruments?
Proven Expertise: Trusted manufacturer, supplier, and exporter of Stainless Steel 17-4PH Pipe Fittings, delivering high-strength, precision-engineered solutions for demanding industrial applications.
Global Standards: Produced in compliance with ASTM A182 / ASME SA182 and ASME B16.9, B16.11, ensuring superior quality, reliability, and dimensional accuracy.
Premium Material Quality: Crafted from 17-4PH (UNS S17400) precipitation-hardening stainless steel, offering exceptional strength, corrosion resistance, and toughness even after heat treatment.
Comprehensive Range: Available in seamless, welded, and forged forms, including elbows, tees, reducers, caps, and stub ends, suitable for a variety of industrial requirements.
High-Performance Reliability: Maintains strength and hardness up to 600°F (316°C), ideal for aerospace, chemical, marine, and power generation industries.
Custom Solutions: Tailored configurations are available to meet specific size, pressure, and operational needs.
Timely Delivery: Supported by a robust inventory and efficient logistics, ensuring on-time supply for standard and custom orders across domestic and international markets.
Get Your Stainless Steel 17-4PH Pipe Fittings Today – Contact Mcneil Instruments to source high-strength, corrosion-resistant fittings engineered for durability, precision, and reliable performance in critical industrial applications.
Frequently Asked Questions – Stainless Steel 17- 4PH Pipe Fittings
What is special about Stainless Steel 17-4PH pipe fittings?
They offer very high strength through heat treatment while maintaining good corrosion resistance.
Are 17-4PH pipe fittings corrosion resistant?
Yes, they resist corrosion in mild to moderate industrial environments, though not as aggressively as duplex or super duplex grades.
Can Stainless Steel 17-4PH pipe fittings be welded?
Yes, but controlled welding and post-weld heat treatment are recommended to maintain properties.
Are 17-4PH fittings suitable for high-pressure systems?
Absolutely. Their high yield strength makes them ideal for pressure and load-bearing applications.
Where are 17-4PH pipe fittings commonly used?
Aerospace, oil & gas, power generation, marine equipment, defense, and heavy engineering industries.