ASTM A269 TP304 / UNS S30400 / 1.4301 Bright Annealed Stainless Steel Seamless Tube

ASTM A269 TP304 bright annealed tubing is a high-quality stainless steel tubing made from Type 304 (UNS S30400) stainless steel that meets the general-purpose requirements of the ASTM A269 standard. "Bright annealing" refers to a specific heat treatment process that imparts a bright, polished surface to the tubing, enhancing corrosion resistance and making it suitable for a variety of applications, particularly where cleanliness and aesthetics are critical. Available as seamless or welded, this tubing is widely used in industries such as medical equipment, food and beverage processing, semiconductor manufacturing, and precision instrumentation.

 

1. ASTM A269 TP304 Bright annealed welded pipe

The welded pipe is annealed in a vacuum controlled atmosphere to keep the surface free of oxidation and brightness. In this bright annealing process, protective gas is inserted into a closed furnace. Usually, the gas is purified hydrogen or a mixture of hydrogen and nitrogen from dissociated ammonia. When the pipe is heated to a certain specified temperature and cooled rapidly, a bright and smooth protective layer is formed on the surface of the pipe.

2. ASTM A269 TP304 Bright annealed seamless pipe

Seamless pipe is made of stainless steel blank through crimping and coiling process. Annealing is the key stage of material quality to eliminate residual stress and uniform structure. For smooth application, seamless pipe requiring bright annealing. Compared with BA welded pipe, Ba seamless pipe is annealed in off-line annealing furnace. ASTM A269 usually stipulates that bright annealed seamless pipe is used for instrument pipe.

Equivalent Grade of ASTM A269 TP304 Stainless Steel Tube

STANDARD	UNS	WERKSTOFF NR.	EN	BS	GOST	JIS	AFNOR
SS 304	S30400	1.4301	X2CrNi18-9 / X2CrNi19-11	304S11	03Х18Н11	SUS 304	Z3CN18‐10

 

Specification of ASTM A269 TP304 Stainless Steel Tube

ASTM A269 TP304 Stainless Steel Tubes Specification	ASTM A-249, A-268, A-269, A-270, A-554, A-688, A-778, DIN 17455, DIN 17456, 17457, DIN 17458 [Class 1] & Its equivalent ASME, DIN & EN Standard.
ASTM A269 TP304 Stainless Steel Tubes Grades	202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC.
ASTM A269 TP304 Stainless Steel Tubes Type	Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish
ASTM A269 TP304 Stainless Steel Tubes Length	Single Random Length, Double Random Length And Customize Size.
ASTM A269 TP304 Stainless Steel Tubes Ends	Plain Ends / Beveled Ends
ASTM A269 TP304 Stainless Steel Tubes Other Testing	Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc
ASTM A269 TP304 Stainless Steel Tubes Dimension	All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME
ASTM A269 TP304 Stainless Steel Tubes Value Added Services	Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment / Annealed / Bright Annealed
ASTM A269 TP304 Stainless Steel Tubes Packaging	Plywooden Case /Iron Case/ Bundle with plastic Cap/re

 

What the Difference Between Bright Annealing and Solution Annealing?

Bright annealing is processed in a closed furnace. This controllable atmosphere minimizes surface oxidation, making the surface brighter and the oxide layer thinner. Pickling is not required after bright annealing because the oxidation degree is very low. Without pickling, the surface is smoother, which leads to better pitting resistance. Use shielding gas inserted inside.

Compared with solution annealed products, bright annealed products have slightly higher hardness and higher tensile strength.

 

Applications

Stainless steel bright annealed tube is broadly used in applications (such as instruments, equipments, machinery) where requires high cleanliness inside surface, high precision dimensions, high corrossion resistance in various industries such as gas, chemical, shipbuilding, automobile,etc.

1. Food industry
2. chloride environments
3. Fasteners
4. Pharmaceuticals
5. Marine applications
6. Architectural applications
7. Medical implants which comprise pins, screws and orthopedic implants like total hip and knee replacements.

 

 If you have a project need for 304 stainless steel bright annealed tubing, we welcome your order. GNEE has a large inventory of popular products for you to choose from. We offer a variety of practical product forms, including seamless and welded. For detailed chemical composition and free samples, please contact our factory today. We offer competitive pricing and excellent service.Email: info@gneestainless.com

 

Other Material Grades

American Standard	Austenitic Steel: TP304,TP304L,TP304H, TP304N, TP310S,TP316,TP316L,TP316Ti,TP316H, TP317,TP317L, TP321, TP321H,TP347, TP347H,904L… Duplex Steel : S32101,S32205,S31803,S32304,S32750, S32760 Others:TP405,TP409, TP410, TP430, TP439,...
Europen Standard	1.4301,1.4307,1.4948,1.4541,1.4878,1.4550,1.4401,1.4404,1.4571,1.4438, 1.4841,1.4845,1.4539,1.4162, 1.4462, 1.4362, 1.4410, 1.4501
GOST Standard	08Х17Т,08Х13,12Х13,12Х17,15Х25Т,04Х18Н10,08Х20Н14С2, 08Х18Н12Б,10Х17Н13М2Т,10Х23Н18,08Х18Н10,08Х18Н10Т, 08Х18Н12Т,08Х17Н15М3Т,12Х18Н10Т,12Х18Н12Т,12Х18Н9, 17Х18Н9, 08Х22Н6Т, 06ХН28МДТ

 

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