2024年3月29日发(作者:从凯)
不锈钢管尺寸公差标准
尺寸
标准
尺寸
10~30
GB/T14975-02 30~50
D>50
6~10
10~30
GB/T14976-02
30~50
D>50
≤140
GB13296-91
>140
D<25.4
25.4~38.1
38.1~50.8
50.8~63.5
ASTM213
63.5~76.2
76.2~101.6
101.6~190.5
190.5~228.6
D<12.7
+0.13/-0.13
12.7~38.1
ASTM A269 38.1~88.9
88.9~139.7
139.7~203.2
ASTM A312 10.29~48.26
+0.25/-0.25
+0.38/-0.38
+0.76/-0.76
+0.40/-0.80 +12.5/-12.5 +6.0/0
+10/-10
+4.8/0
+0.30/-0.30
+0.38/-0.38
+0.38/-0.64
+0.38/-1.14
+15/-15
+3.2/0
D≥38.1 +22/0 D≥50.8 +5.0/0
+1%/-1%
+0.10/-0.10
+0.15/-0.15
+0.20/-0.20
+0.25/-0.25
D<38.1 +20/0 D<50.8 +3.0/0
>10
+0.40/-0.40
+0.9%/-0.9%
>3
+12/-10
+12.5/-12.5
+15/-15
公差
+0.30/-0.30
+0.40/-0.40
+0.9%/-0.9%
+0.20/-0.20
+0.30/-0.30
尺寸(mm)
S≤3
S>3
0.5~1.0
1.0~3.0
公差
+14/-14
+12/-10
+0.15/-0.15mm
+14/-14
+15/0
外径(mm) 壁厚(%) 切割长度
(mm)
尺寸 公差
1.0~3.0 +15/0
+1.25%/-1.25% ≤10
48.26~114.30
114.30~219.08
219.08~457.20
ASTM A789 D≤12.7
12.7~38.1
38.1~88.9
88.9~139.7
139.7~203.2
ASTM A790
EN17455-02
EN17456-02
+0.80/-0.80
+1.60 /-0.80
+2.40/-0.80
+0.13/-0.13 +15/-15
+10/-10
+0.25/-0.25
+0.38/-0.38
+0.76/-0.76
+0.40/-0.80
+0.80/-0.80
+1.60/-0.80
+2.40/-0.80
+0.30/-0.30
+4.00/-4.00
+9%/-9%
+0.20/-0.20
+0.30/-0.30
+4.00/-4.00
+0.9%/-0.9%
S≤3
S>3
0.5~1.0
1.0~3
S>3
+14/-14
+12/-10
+0.15/-0.15
+14/-14
+12/-10
+15.0/0
+5.0/0
+3.0/0
10.29~48.26
48.26~114.3
114.3~219.08
219.08~457.20
10~30
30~50
D>50
6~10
10~30
30~50
D>50
1.0~3.0 +15.0/0
2024年3月29日发(作者:从凯)
不锈钢管尺寸公差标准
尺寸
标准
尺寸
10~30
GB/T14975-02 30~50
D>50
6~10
10~30
GB/T14976-02
30~50
D>50
≤140
GB13296-91
>140
D<25.4
25.4~38.1
38.1~50.8
50.8~63.5
ASTM213
63.5~76.2
76.2~101.6
101.6~190.5
190.5~228.6
D<12.7
+0.13/-0.13
12.7~38.1
ASTM A269 38.1~88.9
88.9~139.7
139.7~203.2
ASTM A312 10.29~48.26
+0.25/-0.25
+0.38/-0.38
+0.76/-0.76
+0.40/-0.80 +12.5/-12.5 +6.0/0
+10/-10
+4.8/0
+0.30/-0.30
+0.38/-0.38
+0.38/-0.64
+0.38/-1.14
+15/-15
+3.2/0
D≥38.1 +22/0 D≥50.8 +5.0/0
+1%/-1%
+0.10/-0.10
+0.15/-0.15
+0.20/-0.20
+0.25/-0.25
D<38.1 +20/0 D<50.8 +3.0/0
>10
+0.40/-0.40
+0.9%/-0.9%
>3
+12/-10
+12.5/-12.5
+15/-15
公差
+0.30/-0.30
+0.40/-0.40
+0.9%/-0.9%
+0.20/-0.20
+0.30/-0.30
尺寸(mm)
S≤3
S>3
0.5~1.0
1.0~3.0
公差
+14/-14
+12/-10
+0.15/-0.15mm
+14/-14
+15/0
外径(mm) 壁厚(%) 切割长度
(mm)
尺寸 公差
1.0~3.0 +15/0
+1.25%/-1.25% ≤10
48.26~114.30
114.30~219.08
219.08~457.20
ASTM A789 D≤12.7
12.7~38.1
38.1~88.9
88.9~139.7
139.7~203.2
ASTM A790
EN17455-02
EN17456-02
+0.80/-0.80
+1.60 /-0.80
+2.40/-0.80
+0.13/-0.13 +15/-15
+10/-10
+0.25/-0.25
+0.38/-0.38
+0.76/-0.76
+0.40/-0.80
+0.80/-0.80
+1.60/-0.80
+2.40/-0.80
+0.30/-0.30
+4.00/-4.00
+9%/-9%
+0.20/-0.20
+0.30/-0.30
+4.00/-4.00
+0.9%/-0.9%
S≤3
S>3
0.5~1.0
1.0~3
S>3
+14/-14
+12/-10
+0.15/-0.15
+14/-14
+12/-10
+15.0/0
+5.0/0
+3.0/0
10.29~48.26
48.26~114.3
114.3~219.08
219.08~457.20
10~30
30~50
D>50
6~10
10~30
30~50
D>50
1.0~3.0 +15.0/0