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Home > Products > Seamless Stainless Steel Pipes > A269 TP304 Seamless Stainless Steel Boiler Heat Exchanger Tube

A269 TP304 Seamless Stainless Steel Boiler Heat Exchanger Tube

Basic Info

Model No.:  EM-269 304

Product Description



Model NO.: EM-269 304


Standard: ASTM, AISI, GB, JIS, DIN, EN


Certification: ISO, BV, GB


Technique: Cold Dranw


Thickness: 5s-Xxs


Production Way: Cold Drawn/ Hot Rolled/ Cold Rolled


Transport Package: in Bundles or Wooden Case


Origin: China




Type: Stainless Steel Pipes


Grade: 300 Series


Shape: Round


Surface Treatment: Pickling


Od: 1/8" - 24"


Trademark: Kingmetal


Specification: 1/8" - 24"


HS Code: 73044190


Kingmetal steel industry Co., Ltd is a subsidiary of Kingmetal Group. We are a professional pipe manufacturer, specialized in stainless steel seamless pipe, stainless steel welded pipe, stainless Steel Pipe fitting, and also are capable to supply sheet, plate, bar, fastener, flange in all stainless steel grade with competitive price and excellent quality.



Products are exported to more than 50 Countries and Areas in last 26 years. Including Europe, America, Russia, South Korea, South Africa, Middle East, Taiwan, Chile, Peru, Brazil and so on.



Existing testing equipment include PMI Chemical Testing, Ultrasonic Detector test deceive, Eddy Current Inspection decieve, Universal Testing Machine and Hardness Tester. Chemical composition, mechanical property are 100% guaranteed.



Standards ASTM 249/ 269 DIN17457 EN10216
Specification OD:6mm-1219mm,WT:0.5-30mm, Length: Max. 20meters
Material TP304, TP304H, TP304LN, TP304L,TP310/S, TP316L, TP316H,TP316/316L,TP317L,TP321/321H,TP347,S31803,2205,2507,ect
Process method ERW,TIG
Surface finish Annealed & Pickled /Bright Annealed,Polished
Applications For fluid and gas transport, structure and Machining, heat exchanger, boiler
Packing Seaworthy Wooden Cases / Steel Framed Cases / Bundle
Marking All tubes are marked as follows: SPEZILLA. Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request. )



Material ASTM A249 Chemical Composition % Max
C Mn P S Si Cr Ni Mo N B Nb Ti
TP304 0.08 2 0.045 0.03 1 18.0-20.0 8.0-11.0 ^ ^ ^ . ^
TP304L 0.035 2 0.045 0.03 1 18.0-20.0 8.0-12.0 ^ ^ ^ ^
TP316 0.08 2 0.045 0.03 1 16.0-18.0 10.0-14.0 2.00-3.00 ^ ^ ^
TP316L 0.035 D 2 0.045 0.03 1 16.0-18.0 10.0-15.0 2.00-3.00 ^ ^ ^
TP321 0.08 2 0.045 0.03 1 17.0-19.0 9.0-12.0 ^ ^ ^ 5C -0.70
TP347 0.08 2 0.045 0.03 1 17.0-19.0 9.0-12.0 10C -1.10 ^




Material Heat treatment Temperure F (C) Min. Hardness
Brinell Rockwell
TP304 Solution 1900 (1040) 192HBW/200HV 90HRB
TP304L Solution 1900 (1040) 192HBW/200HV 90HRB
TP316 Solution 1900(1040) 192HBW/200HV 90HRB
TP316L Solution 1900(1040) 192HBW/200HV 90HRB
TP321 Solution 1900(1040) F 192HBW/200HV 90HRB
TP347 Solution 1900(1040) 192HBW/200HV 90HRB



OD, inch OD Tolerance inch(mm) WT Tolerance % Length Tolernace inch(mm)
+ -
≤ 1 / 2 ± 0.005 ( 0.13 ) ± 15 1 / 8 ( 3.2 ) 0
> 1 / 2 ~1 1 / 2 ± 0.005(0.13) ± 10 1 / 8 (3.2) 0
> 1 1 / 2 ~< 3 1 / 2 ± 0.010(0.25) ± 10 3 / 16 (4.8) 0
> 3 1 / 2 ~< 5 1 / 2 ± 0.015(0.38) ± 10 3 / 16 (4.8) 0
> 5 1 / 2 ~< 8 ± 0.030(0.76) ± 10 3 / 16 (4.8) 0
8~< 12 ± 0.040(1.01) ± 10 3 / 16 (4.8) 0
12~< 14 ± 0.050(1.26) ± 10 3 / 16 (4.8) 0




Contact us if you need more details on Boiler Tube. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Heat Exchanger Tube、A269 Tube. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Seamless Stainless Steel Pipes

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