ASTM A249/A249m Welded Austenitic Stainless Steel Tubes for High-Temperature Service in Boilers, Superheaters, Heat Exchangers

• Customization: Available
• After-sales Service: 20years
• Warranty: 20years
• Model NO.: ASTM A213
• Type: Welded
• Technique: Hot Rolled
• Material: Stainless Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Special Purpose
• Section Shape: Round
• Transport Package: Wood Crated
• Specification: T2,T5,T9,T11,T12,T17,T21,T22,T23,T24,T36,T91,T92
• Trademark: EZS
• Origin: China
• HS Code: 730431
• Production Capacity: 200000 Tons Per Year

Product Description

Product Description

Product name	Stainless Steel Welded Pipe
Grade	ASTM: A312/A358/A790/A928/A268/A269/A554/A249 JISG3463/JIS G3448 EN 10312/EN10217-7 DIN17457
Standard	BS, JIS, GB, DIN, ASTM, API, ASTM
Surface	Polishing, Annealing, Bright annealing, and Acid pickling
Wall Thickness	0.6mm-100mm
Outer Diameter	6mm-3048mm
Length	As per customer request
Usage	Transportation of Oil, Gas, Water and Chemical Medium, Paper-making, Pharmaceutics, Food, and Beverage Industries, etc
Condition of delivery	Austenite in solution, ferrite in annealing or in accordance with the client's requirement
MOQ	0.5kg
Price terms	FOB,CFR,CIF,EXW
Payment  terms	T/T or L/C at sight
Delivery Detail	15-20 days, according to the quantity.
Packaging Detail	Standard seaworthy package (1.plywood case 2.wooden pallet 3. in a bundle or as per client request)

ASTM A249/A249M - Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Scope  
This standard covers welded austenitic stainless steel tubes for high-temperature service in boilers, superheaters, heat exchangers, and condensers. It includes both seamless and welded tubes, with dimensions specified in ASME B36.19M.
Stainless steels (particularly austenitic grades like 310, 321, 347) retain strength at elevated temperatures (up to 1000°C+ for some grades).
Carbon steel loses strength rapidly above 400-500°C and is prone to scaling and decarburization.
Stainless alloys with Ti/Nb (321/347) resist sensitization and carbide precipitation in high-temperature service.

Material and Manufacture

- Tubes are made by automatic welding with no filler metal.  

- Cold-worked or heat-treated (solution-annealed) conditions are specified. 

Product line

 

Certifications

 

Company Profile

 

Premium Industrial Piping Solutions, Engineered for Excellence

EZ Steel Industrial Co., Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.

Innovation-Driven R&D Excellence

At the core of our success lies a relentless commitment to technological advancement. Our dedicated R&D center collaborates with leading universities and industry partners to pioneer breakthrough solutions in material science, pipeline durability, and smart manufacturing. We hold multiple patents in anti-corrosion coatings, high-temperature alloy formulations, and precision machining processes, enabling us to provide customized piping systems for extreme operational environments.