As a leading supplier and distributor of 347H stainless steel elbows, our company has established a reputation for delivering high-quality products that meet stringent industry standards. With years of experience in the field, we specialize in providing customized solutions to clients across various sectors, including petrochemical, power generation, and aerospace.
This blog post delves into the specifications of our 347H stainless steel elbows, highlighting their dimensional standards, and explores the key advantages.
Understanding 347H Stainless Steel Elbows
347H is a stabilized austenitic stainless steel, renowned for its exceptional resistance to intergranular corrosion following exposure to temperatures in the carbide precipitation range. The key differentiating element is the addition of columbium, which acts as a stabilizer. The "H" designation denotes a higher carbon content, providing enhanced high-temperature strength.
Butt-weld elbows are fittings for directional changes in piping systems through seamless welding, ensuring a leak-proof and structurally sound connection.
These elbows are manufactured in accordance with ASTM A403 specifications, which govern wrought austenitic stainless steel piping fittings. Our production processes adhere to ASME B16.9 for seamless and welded fittings.
JN 347H Stainless Steel Elbow Company
JN offers one of the most extensive and reliable inventories of 347H stainless steel elbows. Our products are manufactured in full compliance with international standards such as ASME/ANSI B16.9, B16.28, MSS-SP-43, and MSS-SP-75. Below is a summary of our standard offering. Custom specifications are available upon request.
|
Parameter |
Specification & Range |
|
Type |
Seamless & Welded (Butt-Weld) |
|
Standard |
ASME B16.9 / B16.28, ANSI, DIN, JIS, EN |
|
Size Range |
Nominal Pipe Size (NPS): 1/2" to 48" (Seamless up to 24") |
|
Wall Thickness |
Schedule: SCH 10S, 20, 40S, STD, 80, XS, 160, XXS |
|
Angle / Degree |
45°, 90°, 180° (Long Radius & Short Radius) |
|
End Bevel |
Prepared as per standard or to match specific welding procedure requirements (e.g., 37.5° with 1.6mm root face). |
|
Material Certification |
Mill Test Certificates (MTC) per EN 10204 3.1/3.2, with full traceability to heat number. Chemical and mechanical properties guaranteed. |
Choosing our 347H stainless steel elbows brings several material and supply chain benefits:
Exceptional High-Temperature Strength and Stability: The primary advantage of 347H lies in its niobium stabilization. The addition of niobium, combined with a higher carbon content, prevents chromium carbide precipitation at temperatures between 800°F and 1500°F.
This significantly enhances resistance to intergranular corrosion and preserves tensile and creep strength in high-temperature service, making it ideal for applications in thermal power plants, refinery heaters, and high-temperature chemical processing.
Superior Corrosion Resistance: Like other austenitic stainless steels, 347H offers excellent general corrosion resistance. The stabilized composition provides added resilience in moderately corrosive environments where sensitization is a risk, particularly after exposure to welding or high operating temperatures.
Oxidation Resistance: This alloy exhibits outstanding resistance to scaling and oxidation at continuous high temperatures up to 1600°F and intermittent service up to 1800°F, ensuring long-term durability in furnace and exhaust systems.
Supply Reliability and Quality Assurance: As a dedicated supplier, we guarantee:
Material Traceability: All batches are supplied with full Material Test Certifications (MTC/COTC) meeting ASTM A960 and EN 10204 3.1 standards.
Manufacturing Integrity: Our elbows undergo rigorous quality checks, including dimensional verification, visual inspection, and PMI testing.
Inventory Breadth: Our substantial stock of standard sizes ensures prompt delivery, minimizing project lead times.
Technical Expertise: Our sales teams provide knowledgeable support on material selection, application suitability, and specification compliance.
Our Commitment as a Supplier
As a dedicated 347H stainless steel elbow supplier, we prioritize quality assurance through third-party inspections and material traceability. Our global distribution network ensures timely delivery, with stock availability for standard sizes and rapid turnaround for custom orders. We also offer complementary services such as beveling, threading, and coating to meet specific project needs.
For detailed dimensional data sheets, specific quotations, or technical consultations on your application, please contact our sales team.
