Welded stainless steel pipe dimension chart

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Welded Stainless Steel Pipe Production Requirement

Welded Steel Pipe End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled.

Welded Steel Pipe Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleessve, and sackcloth with several steel strips, Plastic caps.

Welded Steel Pipe Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.

Welded Stainless Steel Pipe Dimension Chart

Standard GB12771-91 ASTM A312 / A312M ASTM A249 / A249M ASTM A688 / A688M JIS G 3468
Stainless Steel Grade 0Cr19Ni9                  
00Cr19Ni11 TP304 TP304L TP304 TP304L TP304 TP304L SUS 304TPY
0Cr17Ni12Mo2 TP316 TP316L TP316 TP316L TP304N TP316N SUS 304LTPY
00Cr17Ni14Mo2 TP321 TP321 TP316 TP316L SUS 316TPY
0Cr18Ni11Ti         TP304LN TP316LN SUS 316LTPY
(1Cr18Ni9Ti)             SUS 321TPY
Specification range (mm) D ≤ 560 10.3 ≤ D ≤ 762 D ≤ 127 15.9<D ≤ 25.4 165.2 ≤ D ≤ 1016
0.4 ≤ t ≤ 8.1 75 ≤ D ≤ 1200 or more
    t ≥ 0.7
Yield strength σ 0.2 ( MPa ) ≥ 180-220 ≥ 170-205 ≥ 170-205 ≥ 175-240 ≥ 175-205
Tensile strength σ b (MPa) ≥ 480 ;≥ 520 ≥ 485 ;≥ 515 ≥ 485 ;≥ 515 ≥ 485 ;≥ 520 ;≥ 580 ≥ 480 ;≥ 520
Elongation δ 5 (%) ≥ 35 (welding state ≥ 25) ≥ 35 ≥ 35 ≥ 35 ≥ 35 (welding state ≥ 25)
Weld lateral guiding bending   Front guiding bending Reverse bending Reverse bending Special requirements JIS Z3122
Root guiding bending Or flatten
Flattening test (mm) D 〈 200 H=D/3     Claim Claim      
Flattening test D ≥ 200 string height H=D/4     Same right t ≥ 10%D or ≥ 3.4 or D<9.5      
NDT   Supplementary requirements (ray flaw detection) Instead of water pressure     Special requirements JIS Z3106
Supplementary requirement
Eddy current / flaw detection
Pressure test Water pressure P=2.45 can be replaced by non-destructive testing                  
GB/T 7735 Class A ASTM A530 / A530M Can be replaced by non-destructive testing AST M A450/A450M 1.5-2.5 by wall thickness
(Mpa) GB/T 5777 C10 P=2RtD where R=50% σ 0.2
Air pressure P=0.59         P = 1MPa      
Intergranular corrosion test GB4334.5 ASTM 262E method ASTM 262E method ASTM 262E method Special requirements JIS G0575
(Supplemental requirements) (Supplemental requirements) (Supplemental requirements)
Heat treatment Claim Claim Claim Claim special requirements
(TP321 should be stabilized) (TP321 should be stabilized)
Outer diameter deviation (mm)   Outer diameter ordinary advanced Outer diameter Allowable deviation Outer diameter Allowable deviation Outer diameter Allowable deviation Outer diameter Allowable deviation
  < 20 ± 0.30 ± 0.20
Welded state ≥ 20 ~ 50 ± 0.50 ±0.40
  ≥50 ±1%D ±0.8%D 10.3- ≤ 48.3 +0.40/-0.80 < 25.4 ±0.10 < 25.4 ±0.10
  <13 ±0.25 ±0.20 > 48.3- ≤ 114.3 +0.80/-0.80 25.4 ~≤ 38.1 ±0.15 25.4~≤38.1 ±0.15
  ≥ 13 ~ 25 ±0. 40 ±0. 3 0 > 114.3- ≤ 219.1 +1.60/-0.80 > 38.1 ~< 50.8 ±0.20 > 38.1 ~ <50.8 ±0.20 ≤ 318.5 ± 1%D
  ≥ 25 ~ 40 ±0. 60 ±0. 4 0 > 219.1- ≤ 457 +2.40/-0.80 50.8 ~ < 63.5 ±0.25 50.8~<3.5 ±0.25
Solid solution state ≥ 40 ~ 65 ±0. 80 ±0. 6 0 > 457- ≤ 660 +3.20/-0.80 63.5 ~ < 76.2 ±0.30 63.5 ~ <76.2 ±0.30
  ≥ 65 ~ 90 ± 1.00 ±0. 8 0 > 660- ≤ 864 +4.00/-0.80 76.2 ~≤ 101.6 ±0.38 76.2~≤101.6 ±0.38 > 318.5 ± 0.5%D
  ≥ 90 ~ 140 ± 1.20 ± 1.00 > 864- ≤ 1219 +4.48/-0.80 > 101.6 ~≤ 190.5 +0.38/-0.64 > 101.6 ~≤ 190.5 +0.38/-0.64
  ≥ 140 By agreement By agreement     > 190.5 ~≤ 228.6 +0.38/-1.14 > 190.5 ~≤ 228.6 +0.38/-1.14
Wall thickness deviation (mm) Wall thickness Allowable deviation + Not specified /-12.5%t ± 10%t Average wall thickness tolerance D ≤ 508 t ≤ 8 +15%t/-12%t
± 10%t t > 8 +15%t/-10%t
< 4 +0.5/-0.6 Minimum wall thickness tolerance D>508 t ≤ 8 + indefinite /-12.5%t
≥ 4 +12.5%t/-15%t +20%/-0 t > 8 + indefinite /-10%t
Out of roundness deviation Δ D/D         ≤ 2%D      
       
Bending degree (mm/m) 2.0mm/m ~ 2.5mm/m Reasonable straightness 0.8mm/900mm   Practical straightness
Weld seam height (mm) ≤ 15%t minimum height is 0.18       special requirements
Inner seam residual height ≤ 1.5
Inner seam residual height ≤ 3.0







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