HOME
ABOUT US
PRODUCT
Steel Product
Steel Coil and Sheet
Steel Profile
Hot Rolled Wire Rod
Steel Round Bar
Steel Pipe
Hot Rolled Flat Bar
Galvanized Steel Coil and Sheets
Color coated steel coils and sheets
Corrugated Metal Roofing Sheets
Steel Structure
Steel Structure Process
Metal Processing
New Product
NEWS
Company News
Industry News
PROJECT
SERVICE
Steel Structure Design
Quality Control
CONTACT US
‹
›
1. Standard:GB/T 702-2004
2. Shape of section: Round
3.Specification and allowable tolerance:
Diameter mm
Theoretical weight kg/m
Allowable Tolerance mm
5.5
0.186
±0.30
29
5.18
±0.40
80
39.4
±0.70
6
0.222
30
5.55
85
44.5
±1.00
6.5
0.260
31
5.92
±0.50
90
49.9
7
0.302
32
6.31
95
55.6
8
0.395
±0.35
33
6.71
100
61.6
9
0.499
34
7.12
105
67.9
10
0.616
35
7.55
110
74.6
11
0.746
36
7.99
115
81.5
±1.30
12
0.888
37
8.44
120
88.7
13
1.04
38
8.90
125
96.3
14
1.21
40
9.86
130
104
15
1.39
42
10.9
135
112
16
1.58
45
12.5
140
121
17
1.78
48
14.2
150
139
18
2.00
50
15.4
160
158
±1.80
19
2.22
53
17.3
170
178
20
2.46
55
18.6
180
200
21
2.72
56
19.3
190
222
22
2.98
58
20.7
246
23
3.26
60
22.2
210
272
Dimension ±1.2%
24
3.55
63
24.5
220
298
25
3.85
65
26.0
230
326
26
4.17
68
28.5
240
355
27
4.49
70
30.2
250
385
28
4.83
75
34.7
Standard:GB/T 702-2004,Shape of section: Round,Specification and allowable tolerance.
E-mail:export@zerchen.com
+8615806633868
+8615806635656
顶部