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Welded Pipes

 

       
Material:304 316 202 201 OR ACCORDING TO CUSTOMERS  REQUIREMENTS

Executive standard: ASTM  A-249, A-269
 

Outside diameter Outside Thickness
SCH 5S SCH 10S SCH 40S
N.B NPS mm mm mm mm
8 1/4' 13.72     2.24
10 3/8' 17.15     2.31
15 1/2' 21.34 1.65 2.11 2.77
20 3/4' 26.67 1.65 2.11 2.87
25 1' 33.40 1.65 2.77 3.38
32 1-1/4' 42.16 1.65 2.77 3.56
40 1-1/2' 48.26 1.65 2.77 3.68
50 2' 60.33 1.65 2.77 3.91
65 2-1/2' 73.03 2.11 3.05 5.16
80 3' 88.90 2.11 3.05 5.49
90 3-1/2' 101.60 2.11 3.05 5.74
100 4' 114.30 2.11 3.05 6.02
125 5' 141.30 2.77 3.4 6.55
150 6' 168.28 2.77 3.4 7.11
200 8' 219.08 2.77 3.76 8.18
250 10' 273.05 3.40 4.19 9.27
300 12' 323.85 3.96 4.57 9.52

ASTM A249 Tolerances on dimensions table:

Outside diameter Thickness Length
<25.40mm ±0.10mm ±10.00% OD<50.8mm +3.0mm -0mm

OD≥50.8mm +5.0 -0mm

≥25.4mm~38.1mm ±0.15mm
≥38.1mm~50.8mm ±0.20mm
≥50.8mm~63.5mm ±0.25mm
≥63.5mm~76.2mm ±0.30mm
≥76.2mm~101.6mm ±0.38mm
≥101.6mm~190.5mm +0.38mm -0.64mm
≥190.5mm~228.6mm +0.38mm -1.14mm

ASTM A269 Tolerances on dimensions table:

Outside diameter Thickness Length
<38.1mm ±0.13mm OD<12.7mm ±15%

OD≥12.7mm ±10%

OD<38.1mm +3.20mm -0mm

OD≥38.1mm +4.80 -0mm

≥38.1mm~88.9mm ±0.25mm
≥88.9mm~139.7mm ±0.38mm
≥139.7mm~203.7mm ±0.76mm
≥203.7mm~304.8mm ±1.01mm
≥304.8mm~355.6mm ±1.26mm

Executive standard: ASTM A-270

Outside diameter Thickness(mm)
(inch) (mm) 1 1.2 1.5 2 2.5 3
3/4' 19.1            
7/8' 22.2            
1' 25.4            
1-1/8' 28.6            
1-1/4' 31.8            
1-1/2' 38.1            
  40            
  45            
2 50.8            
  52            
2-1/4' 57.15            
2-1/8' 60.3            
2-1/2' 63.5            
  70            
3 76.2            
  85            
3-1/2' 88.9            
4' 101.6            
4-1/8' 104.78            
4-1/4' 107.95            
4-1/2' 114.3            
5-1/4' 133.35            
6-1/4' 158.75            
8-5/8' 219.08            

Tolerances on dimensions table:

Outside diameter Thickness Length
<25.40mm ±0.13mm ±10.00% OD<101.60mm +3.20mm -0mm

OD≥101.60mm +4.80 -0mm

≥25.40mm~50.80mm ±0.20mm
≥50.80mm~76.20mm ±0.25mm
≥76.20mm~101.60mm ±0.38mm
≥101.60mm~139.70mm ±0.38mm
≥139.70mm~203.20mm ±0.76mm
≥203.20mm~304.80mm ±1.27mm

Executive standard: ASME B36.19M/B36.10M ASTM A358/A312; GB/T12771; HG20537.3

 

Outside diameter Outside Thickness
SCH 5S SCH 10S SCH 20S SCH 40S
(A) (B) mm mm mm mm mm
350 14' 355.6 3.96 4.78 7.92 11.13
400 16' 406.4 4.19 4.78 7.92 12.7
450 18' 457.2 4.19 4.78 7.92 14.27
500 20' 508.0 4.78 5.54 9.53 15.09
550 22' 558.8 4.78 5.54 9.53 15.09
600 24' 609.6 5.54 6.35 9.53 17.48
650 26' 660.4 5.54 7.92 12.7 17.48
700 28' 711.2 5.54 7.92 12.7 17.48
750 30' 762.0 6.35 7.92 12.7 17.48
800 32' 812.8   7.90 12.7 17.48
850 34 863.6   7.92 12.7 17.48
900 36' 914.4   7.92 12.7 19.05
1000 40' 1016.0   9.53    

Tolerances on dimensions table:

Standard Outside(mm) Thickness(mm) Length(mm)
ASTM A312 ≤48.26 +0.40 -0.80 +No special provisions(Unspecified)

-12.50%

Appoint Length

Definite cut length

+6.40

-0

>48.26~114.30 +0.80 -0.80
>114.30~219.08 +1.60 -0.80
>219.08~457.20 +2.40 -0.80
>457~660 +3.20/-0.80
>660~864 +4.00/-0.80
>864~1219 +4.48/-0.80
JIS G3459 <30.00 ±0.30

≥30.00 ±1.00%

<2.00 ±0.20

≥2.00 ±10%

Appoint Length

Definite cut Length

GB/T 12771 <13.00 ±0.20

13.00~40.00 ±0.30

≥40.00 ±0.80%

≤4.00 +0.50 -0.60

>4.00 ±10%

+20.00

-0

EN 10217-7 D1±1.50% with±0.75mm(min)

D2±1.00% with±0.50mm(min)

D3±0.75% with±0.30mm(min)

D4±0.5% with±0.10mm(min)

T1±15.00% with±0.60mm(min)

T2±12.5% with±0.40mm(min)

T3±10.00% with±0.20mm(min)

T4±7.50% with±0.15mm(min)

T5±5.00% with±0.10mm(min)

EN ISO 1127

≤6000 +5.00 -0

6000~12000 +10.00 -0

 

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