无缝管有色金属按需设计

1、方矩管壁厚的允许偏差，当壁厚不大于10mm时不得超过公称壁厚的正负10%， 当壁厚大于10mm时为壁厚的正负8%，弯角及焊缝区域壁厚除外。
  2、方矩管的通常交货长度为4000mm-12000mm，以6000mm和12000mm居多。方矩管允许交付不小于2000mm的短尺和非定尺产品，也可以接口管形式交货，但需方在使用时应将接口管切除。短尺和非定尺产品的重量不超过总交货量的5%，对于理论重量大于20kg/m的方矩管应不超过总交货量的10%
  3、方矩管的弯曲度每米不得大于2mm，总弯曲度不得大于总长度的0.2%
没有太多毛刺,热轧无缝钢管输送状态通常在热轧状态下进行热处理后进行,检验后,热轧无缝钢管由工作人员严格手工选择,在检查之后,对表面进行涂,然后进行多次冷拉伸实验,并在热轧之后进行穿孔实验,如果穿孔太大.
  又名方形和矩形冷弯空心型钢，简称方管和矩管，代号分别为F和J
国产方矩管规格从5-40号,即相应的高度为5-40cm,在相同的高度下,轻型方矩管比普通方矩管的腿窄,腰薄,重量轻,18-40号为大型方矩管,5-16号方矩管为中型方矩管,进口方矩管标明实际规格尺寸及相关标准.

 

重量参照表
单位：Kg/m
壁 厚
外 径
3
3.5
4
4.5
5
5.5
6
32
2.146
2.460
2.762
3.052
3.329
3.594
3.847
38
2.589
2.978
3.354
3.718
4.069
4.408
4.735
42
2.885
3.323
3.749
4.162
4.562
4.951
5.327
45
3.107
3.582
4.044
4.495
4.932
5.358
5.771
50
3.477
4.014
4.538
5.049
5.549
6.036
6.511
54
3.773
4.359
4.932
5.493
6.042
6.578
7.103
57
3.995
4.618
5.228
5.826
6.412
6.985
7.546
60
4.217
4.877
5.524
6.159
6.782
7.392
7.990
63.5
4.476
5.179
5.869
6.548
7.214
7.867
8.508
68
4.809
5.567
6.313
7.047
7.768
8.477
9.174
70
4.957
5.740
6.511
7.269
8.015
8.749
9.470
73
5.179
5.999
6.807
7.602
8.385
9.156
9.914
76
5.401
6.258
7.103
7.935
8.755
9.563
10.358
89
6.363
7.380
8.385
9.378
10.358
11.326
12.281
108
7.768
9.020
10.259
11.486
12.701
13.903
15.093
133
11.178
12.725
14.261
15.783
17.294
18.792
159
13.422
15.290
17.146
18.989
20.821
22.639
219
18.601
21.209
23.805
26.388
28.959
31.517
273
23.262
26.536
29.797
33.046
36.283
39.508
325
27.750
31.665
35.568
39.458
43.337
47.202
355
38.897
43.158
47.406
51.641
377
41.339
45.871
50.390
54.897
426
46.777
51.913
57.036
62.147
450
480
530
630
单位：Kg/m
壁 厚
外 径
6.5
7
8
8.5
9
10
12
32
4.088
38
5.049
42
5.691
45
6.172
50
6.973
7.423
8.286
8.699
54
7.614
8.114
9.075
9.538
57
8.095
8.632
9.667
10.167
60
8.576
9.149
10.259
10.796
63.5
9.137
9.754
10.950
11.529
68
9.858
10.530
11.838
12.473
70
10.179
10.876
12.232
12.892
13.539
14.797
17.164
73
10.660
11.394
12.824
13.521
14.205
15.537
18.052
76
11.141
11.912
13.416
14.150
14.871
16.277
18.940
89
13.225
14.156
15.981
16.875
17.756
19.483
22.787
108
16.270
17.436
19.729
20.858
21.973
24.168
28.410
133
20.278
21.751
24.662
26.098
27.522
30.334
35.809
159
24.446
26.240
29.791
31.548
33.293
36.746
43.503
219
34.064
36.598
41.629
44.126
46.610
51.543
61.259
273
42.720
45.920
52.283
55.445
58.596
64.860
77.240
325
51.056
54.897
62.542
66.346
70.137
77.684
92.629
355
55.865
60.076
68.460
72.634
76.796
85.082
101.507
377
59.391
63.873
72.801
77.246
81.679
90.508
108.018
426
67.246
72.332
82.468
87.518
92.555
102.592
122.519
450
71.093
76.475
87.203
92.549
97.882
108.511
129.621
480
75.902
81.654
93.122
98.837
104.540
115.909
138.499
530
83.917
90.286
102.987
109.319
115.638
128.240
153.296
630
99.947
107.549
122.716
130.281
137.833
152.902
182.890