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Stainless steel welded pipe standard contrast table

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Stainless steel welded pipe standard contrast table

Standard GB12771-91 HG20537.2-92 HG20537.3-92 HG20537.4-92 ASTM A312/A312M ASTM A249/A249M ASTM A688/A688M JIS G 3468
Grades 0Cr19Ni9 0Cr18Ni9 0Cr18Ni9 0Cr18Ni9                  
00Cr19Ni11 00Cr19Ni10 00Cr19Ni10 00Cr19Ni10 TP304 TP304L TP304 TP304L TP304 TP304L SUS 304TPY
0Cr17Ni12Mo2 0Cr17Ni12Mo2

0Cr17Ni/12Mo2

 0Cr17Ni12Mo2 TP316 TP316L TP316 TP316L TP304N TP316N SUS 304LTPY
00Cr17Ni14Mo2 00Cr17Ni14Mo2

00Cr17Ni/14Mo2

 00Cr17Ni14Mo2 TP321 TP321 TP316 TP316L SUS 316TPY
0Cr18Ni11Ti 0Cr18Ni10Ti 0Cr18Ni11Ti 0Cr18Ni11Ti         TP304LN TP316LN SUS 316LTPY
(1Cr18Ni9Ti) (1Cr18Ni9Ti) (1Cr18Ni9Ti) (1Cr18Ni9Ti)             SUS 321TPY
Specifications range (mm) D ≤ 560 10 ≤ D ≤ 76 D ≤ 325 377 ≤ D ≤ 1020 10.3 ≤ D ≤ 762 D ≤ 127 15.9<D ≤ 25.4 165.2 ≤ D ≤ 1016
0.4 ≤ t ≤ 8.1 75 ≤ D ≤ 1200 Or greater  t ≥ 0.7
Yield strengthσ 0.2 ( MPa ) ≥ 180-220 ≥ 175-205 ≥ 175-205 ≥ 170-205 ≥ 170-205 ≥ 170-205 ≥ 175-240 ≥ 175-205
Tensile strengthσ b (MPa) ≥ 480 ；≥ 520 ≥ 480 ；≥ 520

≥ 480 ；≥520

 ≥ 480 ；≥ 520 ≥ 485 ；≥ 515 ≥ 485 ；≥ 515 ≥ 485 ；≥ 520 ；≥ 580 ≥ 480 ；≥ 520
Elongationδ 5 （%） ≥ 35 （-Welded≥ 25 ） ≥ 40 ≥ 40 ≥ 40 ≥ 35 ≥ 35 ≥ 35 ≥ 35 （-Welded≥ 25 ）
Bent transverse Guide   Expansion test Side bends, back bends Positively guided-bend Positively guided-bend Reverse bends Reverse bends Special requirements JIS Z3122
a=60° 20%D Bent diameter d=3t Roots of guided-bend Roots of guided-bend Or flattening
Flattening test (mm) D 〈 200 H=D/3 H=1.09/(0.09+t/D)

H=1.09

(0.09+t/D)

           Requirements Requirements      
Flattening test D ≥ 200 Chord height H=D/4 Reverse flattening               With the right t ≥ 10%D or≥ 3.4 or D<9.5      
Non-destructive testing   GB/T 7735 B GB/T7735 A GB3323 Supplementary requirements ( Radiographic inspection ) Replace water pressure     Special requirements JIS Z3106

t>6.3mm

 

 100%X Ray Ⅱ Supplementary requirements
GB3323 Ⅲ(20%) 20%X Ray Ⅲ Vortex/testing
Pressure test Water pressure P=2.45 NDT can substitute Agreement available lossless crack detection in place

1.5-6.0

                        
GB/T 7735 A  P=2Rt/D   R=50% σ 0.2

wall thickness or replaced by mutual agreement

 1.5-2.5 ASTM A530/A530M NDT can substitute AST M A450/A450M 1.5-2.5
(Mpa) GB/T 5777 C10 P max=7.5

P=2Rt/D R=50% σ 0.2

   P=2RtD R=50% σ 0.2
Air pressure P=0.59                           P=1MPa      
Intergranular corrosion test GB4334.5 Additional requirements for GB4334.5 Additional requirements forGB4334.5 Additional requirements forGB4334.5 ASTM 262E ASTM 262E ASTM 262E JIS G0575
(Additional requirements) (Additional requirements) (Additional requirements)
Heat treatment Requirements Requirements Requirements Additional requirements Additional requirements Additional requirements   Special requirements
(Stabilizing treatment or solution treatment) (TP321 stable processing) (TP321 stable processing)
Outside diameter deviation (mm)   Outer diameter Ordinary Senior Ⅰ Ⅱ Outer diameter Permissible deviations ± 1% π D (Measured circumference) Outer diameter Permissible deviations Outer diameter Permissible deviations Outer diameter Permissible deviations Outer diameter Permissible deviations
  ＜ 20 ± 0.30 ± 0.20 Outer diameter Permissible deviations Outer diameter Permissible deviations
-Welded ≥ 20 ～ 50 ± 0.50 ±0.40 ＜25 ±0.10 ≤ 10 ± 0.15
  ≥50 ±1%D ±0.8%D         ≤ 168   10.3- ≤ 48.3 +0.40/-0.80 ＜ 25.4 ±0.10 ＜ 25.4 ±0.10
  ＜13 ±0.25 ±0.20 ≥ 25 ～ 38 ±0.15 ＞ 10 ～ 30 ± 0.20 ± 0.75%D ＞ 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         minimum value ± 0.3 ＞ 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 ≥ 38 ～ 51 ±0.20 ＞ 30 ～ 50 ± 0.30 ≤ 168 ～ 325 ± 1%D ＞ 219.1- ≤ 457 +2.40/-0.80 50.8 ～ ＜ 63.5 ±0.25 50.8～<3.5 ±0.25
Solid soluble ≥ 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 ≥ 51 ～ 63 ±0.25 ＞ 50 ± 0.8%D ＞ 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 According agreement According agreement ≥ 63 ～ 76 ±0.30         ＞ 190.5 ～≤ 228.6 +0.38/-1.14 ＞ 190.5 ～≤ 228.6 +0.38/-1.14
Wall thickness deviation (mm) Wall thickness Permissible deviations ± 10%t, Minimum allowable deviation± 0.2   D ≤ 508 t ≤ 8 +15%t/-12.5%t + no require/-12.5%t ± 10%t Average wall thickness allowable deviation D ≤ 508 t ≤ 8 +15%t/-12%t
± 10%t t ＞ 8 +15%t/-10%t ± 10%t t ＞ 8 +15%t/-10%t
＜ 4 +0.5/-0.6 Agreement for +18%t/0 Minimum allowable deviation≤± 0.2 D>508 t ≤ 8 +no require /-12.5%t Minimum wall thickness allowable deviation D>508 t ≤ 8 + no require /-12.5%t
≥ 4 +12.5%t/-15%t       t ＞ 8 + no require /-10%t +20%/-0 t ＞ 8 + no require /-10%t
Non-roundness deviationΔ D/D         With outside diameter deviation With outside diameter deviation ≤ 1.5%D ≤ 2%D      
       
Curvature(mm/m) 2.0mm/m ～ 2.5mm/m 1.0mm/m 3mm/3m 5mm/3m Reasonable straight 0.8mm/900mm   Practicality, straight
Weld the remaining height (mm) ≤ 15%t Minimum height 0.18 Outside seam height and base metal

In seam weld reinforcemen≤

15%t

             Special requirements
In seam weld reinforcemen D ＜ 20 ≤ 0.15 In seam weld reinforcement≤ 25% and≤ 3 In seam weld reinforcement≤ 1.5
D ≥ 20 ≤ 0.25 Outside seam weld reinforcement≤ 50% and≤ 3 In seam weld reinforcement≤ 3.0

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