Stainless Steel Union
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ASME Standards
Stainless Steel Union
Stainless Steel Union Manufacturer & Supplier
A Stainless Steel Union is a forged pipe fitting designed to connect two sections of pipe while allowing easy assembly and disassembly without cutting or damaging the pipeline. It provides a secure, leak-proof connection and is widely used in high-pressure, high-temperature, and corrosive environments where frequent maintenance or equipment replacement is required.
Our stainless steel unions are manufactured using premium-quality stainless steel materials and precision machining processes to ensure excellent corrosion resistance, high mechanical strength, dimensional accuracy, and long service life. They are available in Socket Weld and Threaded configurations and are manufactured in accordance with international standards such as ASME B16.11.
These unions are widely used in oil & gas, petrochemical, chemical processing, pharmaceutical, food processing, marine, water treatment, and power generation industries.
Stainless Steel Union Specifications
Available Stainless Steel Grades
- Stainless Steel 304
- Stainless Steel 304L
- Stainless Steel 316
- Stainless Steel 316L
- Stainless Steel 321
- Stainless Steel 347
Pressure Classes
- Class 2000
- Class 3000
- Class 6000
- Class 9000
Stainless Steel Union Dimensions
Our stainless steel unions are manufactured according to ASME B16.11 dimensional requirements and are available in standard sizes from 1/8" NB to 4" NB.
Dimension charts include:
- Nominal Pipe Size (NPS)
- Overall Length
- Outside Diameter
- Thread Dimensions
- Socket Depth
- Weight
Detailed dimension tables are available upon request.
Key Features
- Manufactured from premium stainless steel
- Excellent corrosion and oxidation resistance
- High mechanical strength
- Leak-proof connection
- Easy installation and maintenance
- Precision-machined threads
- Suitable for high-pressure and high-temperature applications
- Long service life
Inspection & Testing
Every stainless steel union undergoes strict quality inspection, including:
- Positive Material Identification (PMI)
- Hydrostatic Testing
- Visual Inspection
- Dimensional Inspection
- Hardness Testing
- Material Test Certificate (EN 10204 3.1)
- Third-Party Inspection
Applications
Stainless steel unions are widely used in:
- Oil & Gas Industry
- Petrochemical Plants
- Chemical Processing
- Pharmaceutical Industry
- Food & Beverage Processing
- Water Treatment Plants
- Marine Industry
- Power Generation
- Paper & Pulp Industry
- Fire Protection Systems
Why Choose Our Stainless Steel Unions?
We manufacture high-quality stainless steel unions using certified stainless steel raw materials and advanced forging technology. Every fitting is precision-machined and tested to ensure reliable performance, corrosion resistance, and long service life. We offer competitive pricing, fast delivery, and customized solutions to meet industrial project requirements worldwide.
Frequently Asked Questions
What is a Stainless Steel Union?
A stainless steel union is a pipe fitting used to connect two pipes while allowing easy disassembly for maintenance or replacement.
Which stainless steel grades are available?
We offer SS 304, SS 304L, SS 316, SS 316L, SS 321, and SS 347.
What pressure classes are available?
Class 2000, Class 3000, Class 6000, and Class 9000.
What connection types are available?
Socket Weld (SW) and Threaded (NPT, BSPT, BSPP).
Which industries use stainless steel unions?
Oil & Gas, Petrochemical, Chemical, Pharmaceutical, Food Processing, Marine, Water Treatment, and Power Generation.
Need a Quote on Stainless Steel Unions?
Share your size, grade and pressure class requirement and our team will get back to you with pricing and availability.