Standard
Out Diameter（mm）
Wall Thickness（%）
Cutting Length（mm）
Sizes
Tolerance
Sizes(mm)
Tolerance
Sizes
Tolerance
GB/T14975-02
10~30
+0.30/-0.30
S≤3
+14/-14
1.0~3.0
+15/0
30~50
+0.40/-0.40
S＞3
+12/-10
D＞50
+0.9%/-0.9%
GB/T14976-02
6~10
+0.20/-0.20
0.5~1.0
+0.15/-0.15mm
+15/0
10~30
+0.30/-0.30
1.0~3.0
+14/-14
30~50
+0.40/-0.40
＞3
+12/-10
D＞50
+0.9%/-0.9%
+12.5/-12.5
GB13296-91
≤140
+1.25%/-1.25%
≤10
+15/-15
＞140
+1%/-1%
＞10
ASTM213
D＜25.4
+0.10/-0.10
D＜38.1
+20/0
D＜50.8
+3.0/0
25.4~38.1
+0.15/-0.15
38.1~50.8
+0.20/-0.20
50.8~63.5
+0.25/-0.25
D≥38.1
+22/0
D≥50.8
+5.0/0
63.5~76.2
+0.30/-0.30
76.2~101.6
+0.38/-0.38
101.6~190.5
+0.38/-0.64
190.5~228.6
+0.38/-1.14
ASTM A269
D＜12.7
+0.13/-0.13
+15/-15
+3.2/0
12.7~38.1
+10/-10
38.1~88.9
+0.25/-0.25
+4.8/0
88.9~139.7
+0.38/-0.38
139.7~203.2
+0.76/-0.76
ASTM A312
10.29~48.26
+0.40/-0.80
+12.5/-12.5
+6.0/0
48.26~114.30
+0.80/-0.80
114.30~219.08
+1.60 /-0.80
219.08~457.20
+2.40/-0.80
ASTM A789
D≤12.7
+0.13/-0.13
+15/-15
+3.0/0
12.7~38.1
+10/-10
38.1~88.9
+0.25/-0.25
+5.0/0
88.9~139.7
+0.38/-0.38
139.7~203.2
+0.76/-0.76
ASTM A790
10.29~48.26
+0.40/-0.80
48.26~114.3
+0.80/-0.80
114.3~219.08
+1.60/-0.80
219.08~457.20
+2.40/-0.80
EN17455-02
10~30
+0.30/-0.30
S≤3
+14/-14
1.0~3.0
+15.0/0
30~50
+4.00/-4.00
S＞3
+12/-10
D＞50
+9%/-9%
EN17456-02
6~10
+0.20/-0.20
0.5~1.0
+0.15/-0.15
+15.0/0
10~30
+0.30/-0.30
1.0~3
+14/-14
30~50
+4.00/-4.00
S＞3
+12/-10
D＞50
+0.9%/-0.9%
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