ASTM A249 TP316L Stainless Steel Welded Tube Bright Annealed

MOQ： 100KGS
Price： Negotiable
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Payment Terms	L/C,T/T
Supply Ability
Delivery Time	7DAYS
Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product	Stainless Steel Welded Tube Boiler, Superheater, Heat Exchanger Tube
Standard	ASTM A249
Material	TP316L
NDT	ET/RT/PT
Surface	Bright Annealed
Packing	Ply-wooden Case Or Iron Case
Brand Name	YUHONG
Model Number	ASTM A249 TP316L
Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin	CHINA

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Product Specification


Payment Terms	L/C,T/T	Supply Ability
Delivery Time	7DAYS	Packaging Details	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product	Stainless Steel Welded Tube Boiler, Superheater, Heat Exchanger Tube	Standard	ASTM A249
Material	TP316L	NDT	ET/RT/PT
Surface	Bright Annealed	Packing	Ply-wooden Case Or Iron Case
Brand Name	YUHONG	Model Number	ASTM A249 TP316L
Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008	Place of Origin	CHINA
High Light	ASTM A249 TP316L stainless steel tube ，bright annealed boiler tube ，superheater heat exchanger tube

ASTM A249 TP316L Stainless Steel Welded Tube Bright Annealed

ASTM A249 is a standard specification for seamless and welded austenitic stainless steel tubes for boilers, superheaters, heat exchangers, and condensers, while TP316L is one of the stainless steel grades under this standard and is the ultra-low carbon version of TP316 stainless steel. ASTM A249 TP316L stainless steel welded tube is commonly used in environments with high requirements for product corrosion resistance, especially in chemical, petrochemical, food and beverage, papermaking, marine, heat exchanger, condenser, and other sanitary cleanliness applications. It is also widely used in the nuclear industry.

ASTM A249 TP316L Stainless Steel Welded Tube Key Characteristics

Process type: ASTM A249 standard covers seamless steel tubes and welded steel tubes. Seamless tubes are mainly produced through perforation, extrusion, or hot rolling/cold drawing processes, with no weld seams on the surface; Welded tubes are usually made by using automatic welding processes such as TIG welding, laser welding, plasma welding, and high-frequency welding to curl and shape steel strips or plates, and then weld them together. Welded tubes need to meet the same mechanical properties, corrosion testing, and flaw detection requirements as seamless tubes.
Heat treatment: All ASTM A249 TP316L tubes must undergo solution heat treatment to completely dissolve carbides into the austenitic matrix and allow the material to recrystallize and soften, achieving optimal corrosion resistance and mechanical properties. The main method is to first heat to a high temperature of about 1040-1150 ° C (1900-2100 ° F), and then rapidly cool (quench), usually by water quenching or spray cooling. This ensures that carbides do not precipitate in the sensitization temperature range, maintaining the material's resistance to intergranular corrosion.
Surface treatment: Depending on the application requirements, acid pickling passivation (removal of oxide scale and formation of passivation film), polishing (mechanical polishing to achieve Ra value requirements, especially for sanitary applications), sandblasting and other treatments may be carried out.

ASTM A249 Stainless Steel Tubes Mechanical Properties

SS GRADE	Tensile Strength, min, ksi [MPa]	Yield Strength, min, ksi [MPa]	Elongation in 2 in. or 50 mm, min, %
TP316	75[515]	30[205]	35
TP316L	70[485]	25[170]	35

ASTM A249 Stainless Steel Welded Heat Exchanger Tube Chemical Composition

SS GRADE	ASTM A249 CHEMICAL COMPOSITION % MAXIMUM
SS GRADE	C	MN	P	S	SI	CR	NI	MO
TP316	0.08	2.00	0.045	0.030	1.00	16.0-18.0	10.0-14.0	2.00-3.00
TP316L	0.030	2.00	0.045	0.030	1.00	16.0-18.0	10.0-15.0	2.00-3.00

ASTM A249 TP316L Stainless Steel Welded Tube Application

Food and Beverage Industry: Material handling pipelines for dairy, beer, juice, and soy sauce production lines; CIP (Continuous Injection Processing) system pipelines.
Pharmaceutical and Bioengineering: Purified water and water for injection distribution systems; process solution preparation pipelines; material pipelines for bioreactors and fermenters; clean gas delivery pipelines.
High-Purity Semiconductor and Electronics Industry: Ultrapure water delivery systems; and some chemical distribution systems.
Fine Chemicals: Production equipment for cosmetics, fragrances, and high-end chemicals that are sensitive to metal ion contamination.

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Year Established:

2007 
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50M-70M
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Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...

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