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Stainless Steel Pipes / Tubes

Type:Welded/Seamless
OD:20-1000mm 
Wall Thickness:0.5-8.0mm
Standard:ASTM A554/A269/A312

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Stainless steel weld tubes can be classified into 2 types,stainless steel industrial pipes,and stainless steel decorative tubes. Both of them are produced by welding. Normally thickness blow 1.0mm are supposed to be used as decorative tubes. 

Basic Specification of stainless steel welded tube&pipe

Product NameExecutive StandardDimensionSteel Code / Steel Grade
Industrial Pipes

ASTM A312, A358, A778

JIS G3459


OD: 1/4″~40″

WT: SCH5S~SCH80S
TP304, TP304L, TP316L, SUS304TP
Tubes for Boiler and Heat-Exchanger, General Service TubingASTM A249, A269, JIS G3463OD: 15.9~139.8mm

WT: 1.6~5.0mm
TP304, TP304L, TP316L, SUS304TB
Mechanical and Structural TubesASTM A554, JIS G3446OD: 7.9~152.4mm

WT: 0.5~6.5mm
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD SUS304
Square TubesASTM A554OD: 12.7×12.7~150x150mm

WT: 0.7~6.5mm
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD
Rectangular TubesASTM A554OD: 10×20~100x200mm

WT: 0.7~6.5mm
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD
Sanitary TubingASTM A270

JIS G3447
OD: 25.4~165.2mm

WT: 0.8~3.05mm
TP304, TP304L, TP316L, SUS304TBS
Large Gauge Pipes for Ordinary PipingJIS G3448OD: 15.88~318.5mm

WT: 0.8~3.0mm
SUS304TPD
Large Diameter PipesJIS G3468OD: 14″~40″

WT: SCH5S~SCH40S
SUS304TPY

Stainless steel Decorative Tube

0.3-2.0mm wall thickness
Read more

Stainless Steel Industrial pipe

1.0-8.0mm wall thickness
Read more

stainless decorative tubes(ASTM A554 standard)

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2017-05-23 144302
201 Stainless Steel Pipe
20200110113917_593
430 Stainless Steel Pipe/Square Tube
Qukin steel 0062
Stainless Steel Decorative Pipe/Tube
6
stainless steel decorative plate
stainless steel tube
304 stainless steel rectangular tube
stainless steel pipes
316 stainless steel tube

Key Factor:

  1. Material origin, if the material is from private small rolling machinery, the surface may have defects and easily get break.
  2. For 201 grades, there are too many subgrades based on carbon content and copper content, J1-J5, and full copper, half coper, and so on. 
  3. Surface polishing, there are sanitary tube available, which means both sides of the tubes have been polished. They are widely used in medical application. 
  4. Packaging, for sanitary tube, each tube will be put into plastic bags and also put in the wooden box, which is costly, but need enough protection. 
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stainless industrial tubes(ASTM A312)

Key factor:

  1. TIR, this value is mainly about the straight parameter. For some industry this  value is very important
  2. Pressure test, after production, each tube need be tested by water pressure and also X ray test to guarantee the welding quality. 
  3. Line marking, it is one of the most important detail to exhibit the standard and also the quality guarantee. 
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2016-09-14 144349
Stainless Steel Seamless Pipe
3
316 309 310 310S Stainless Steel Pipe/Square Tube

Mechanical&chemical properties

JIS Chemical /Spec.JIS G4304/G4305/G4312

Steel GradeNi% Max.Cr% Max.C% Max.Si% Max.Mn% Max.P% Max.S% Max.Mo% Max.Ti% Max.Other
SUS2013.5~5.516.0~18.00.1515.5~7.50.060.03––N: 0.25
SUS2024.0~6.017.0~19.00.1517.5~10.00.060.03––N: 0.25
SUS3048.0~10.518.0~20.00.08120.0450.03–––
SUS304L9.0~13.018.0~20.00.03120.0450.03–––
SUS316L12.0~15.016.0~18.00.03120.0450.032.0~3.0––
SUS4300.616.0~18.00.120.7510.040.03–––

JIS Mechanical /Spec.JIS G4304/G4305/G4312

Steel GradeN/mm 2 MIN.N/mm 2 MIN.% MIN.HRB MAX.Bendability:Bendability:
Tensile StressProof StressElongationHardnessBending AngleInside Radius
SUS20152027540100No Require–
SUS2025202754095No Require–
SUS3045202054090No Require–
SUS304L4801754090No Require–
SUS316L4801754090No Require–
SUS4304202052288180°1.0 time the thickness

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