No. 10 seamless steel pipe steel is a high-quality carbon structural steel with excellent plasticity and toughness. It is suitable for manufacturing parts that are not stressed and require high toughness, such as automobile bodies, deep-drawing vessels, pipes, gaskets, etc. . The steel is easy to form by hot and cold processing, has good cutting performance and welding performance, no temper brittleness, poor hardenability and hardenability. It can be used as carburized parts and carbonitrided parts with low core strength.
China GB standard steel number is 10#, its tensile strength σb (MPa) is not less than 335, yield strength σs (MPa) is not less than 205, elongation δ5 (%) is not less than 31, and the reduction of area ψ ( %) not less than 55, the hardness does not exceed 137HBs without heat treatment, and the longitudinal dimension of the sample is 25mm.
In terms of heat treatment, it is recommended to use normalizing 930°C for heat preservation treatment, the heat preservation time should not exceed 30 minutes, and then air cooling. The holding time during quenching should not exceed 30 minutes. 70.80 and 85 steels are cooled by oil, and other steels are cooled by water. Tempering holding time does not exceed 1 hour.
No. 10 seamless steel pipe steel also has corresponding standard steel grades in the world, such as Japanese JIS standard steel grade S10C/S12C, American AISI/ASTM standard steel grade 1010/1012, German DIN standard steel grade CK10/C10, British BS standard steel No. 040A10/040A12, French NF standard steel No. XC10/C10 and International Organization for Standardization ISO standard steel No. C101.
Its chemical composition includes carbon C 0.07~0.13, silicon Si 0.17~0.37, manganese Mn 0.35~0.65, sulfur S not more than 0.035, phosphorus P not more than 0.035 and chromium Cr not more than 0.15.
Zhengde hot-rolled seamless steel pipe is a long strip of steel with a hollow section and no joints around it. The steel pipe has a hollow cross-section and is widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, seamless steel pipe is lighter in weight when the bending and torsional strength is the same. It is an economical section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes and automobile transmission shafts. , bicycle racks and steel scaffolding used in building construction, etc. The use of seamless steel pipes to manufacture ring parts can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing hours, such as rolling bearing rings, jack sets, etc., which have been widely used in steel pipes. Hot-rolled seamless steel pipe is also an indispensable material for various conventional weapons. Gun barrels, barrels, etc. must be made of steel pipes.
thick
Φ
|
3
|
3.5
|
4
|
4.5
|
5
|
5.5
|
6
|
6.5
|
7
|
8
|
8.5
|
9
|
10
|
12
|
32
|
2.146
|
2.46
|
2.762
|
3.052
|
3.329
|
3.594
|
3.847
|
4.088
|
|
|
|
|
|
|
38
|
2.589
|
2.978
|
3.354
|
3.718
|
4.069
|
4.408
|
4.735
|
5.049
|
|
|
|
|
|
|
42
|
2.885
|
3.323
|
3.749
|
4.162
|
4.562
|
4.951
|
5.327
|
5.691
|
|
|
|
|
|
|
45
|
3.107
|
3.582
|
4.044
|
4.495
|
4.932
|
5.358
|
5.771
|
6.172
|
|
|
|
|
|
|
50
|
3.477
|
4.014
|
4.538
|
5.049
|
5.549
|
6.036
|
6.511
|
6.973
|
7.423
|
8.286
|
8.699
|
|
|
|
54
|
3.773
|
4.359
|
4.932
|
5.493
|
6.042
|
6.578
|
7.103
|
7.614
|
8.114
|
9.075
|
9.538
|
|
|
|
57
|
3.995
|
4.618
|
5.228
|
5.826
|
6.412
|
6.985
|
7.546
|
8.095
|
8.632
|
9.667
|
10.167
|
|
|
|
60
|
4.217
|
4.877
|
5.524
|
6.159
|
6.782
|
7.392
|
7.99
|
8.576
|
9.149
|
10.259
|
10.796
|
|
|
|
63.5
|
4.476
|
5.179
|
5.869
|
6.548
|
7.214
|
7.867
|
8.508
|
9.137
|
9.754
|
10.95
|
11.529
|
|
|
|
68
|
4.809
|
5.567
|
6.313
|
7.047
|
7.768
|
8.477
|
9.174
|
9.858
|
10.53
|
11.838
|
12.473
|
|
|
|
70
|
4.957
|
5.74
|
6.511
|
7.269
|
8.015
|
8.749
|
9.47
|
10.179
|
10.876
|
12.232
|
12.892
|
13.539
|
14.797
|
17.164
|
73
|
5.179
|
5.999
|
6.807
|
7.602
|
8.385
|
9.156
|
9.914
|
10.66
|
11.394
|
12.824
|
13.521
|
14.205
|
15.537
|
18.052
|
76
|
5.401
|
6.258
|
7.103
|
7.935
|
8.755
|
9.563
|
10.358
|
11.141
|
11.912
|
13.416
|
14.15
|
14.871
|
16.277
|
18.94
|
89
|
6.363
|
7.38
|
8.385
|
9.378
|
10.358
|
11.326
|
12.281
|
13.225
|
14.156
|
15.981
|
16.875
|
17.756
|
19.483
|
22.787
|
108
|
7.768
|
9.02
|
10.259
|
11.486
|
12.701
|
13.903
|
15.093
|
16.27
|
17.436
|
19.729
|
20.858
|
21.973
|
24.168
|
28.41
|
133
|
|
11.178
|
12.725
|
14.261
|
15.783
|
17.294
|
18.792
|
20.278
|
21.751
|
24.662
|
26.098
|
27.522
|
30.334
|
35.809
|
159
|
|
13.422
|
15.29
|
17.146
|
18.989
|
20.821
|
22.639
|
24.446
|
26.24
|
29.791
|
31.548
|
33.293
|
36.746
|
43.503
|
219
|
|
18.601
|
21.209
|
23.805
|
26.388
|
28.959
|
31.517
|
34.064
|
36.598
|
41.629
|
44.126
|
46.61
|
51.543
|
61.259
|
273
|
|
23.262
|
26.536
|
29.797
|
33.046
|
36.283
|
39.508
|
42.72
|
45.92
|
52.283
|
55.445
|
58.596
|
64.86
|
77.24
|
325
|
|
27.75
|
31.665
|
35.568
|
39.458
|
43.337
|
47.202
|
51.056
|
54.897
|
62.542
|
66.346
|
70.137
|
77.684
|
92.629
|
355
|
|
|
|
38.897
|
43.158
|
47.406
|
51.641
|
55.865
|
60.076
|
68.46
|
72.634
|
76.796
|
85.082
|
101.507
|
377
|
|
|
|
41.339
|
45.871
|
50.39
|
54.897
|
59.391
|
63.873
|
72.801
|
77.246
|
81.679
|
90.508
|
108.018
|
426
|
|
|
|
46.777
|
51.913
|
57.036
|
62.147
|
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
|
104.54
|
115.909
|
138.499
|
530
|
|
|
|
|
|
|
|
83.917
|
90.286
|
102.987
|
109.319
|
115.638
|
128.24
|
153.296
|
630
|
|
|
|
|
|
|
|
99.947
|
107.549
|
122.716
|
130.281
|
137.833
|
152.902
|
182.89
|
Our Advantages
Three-roll pipe mill
The seamless steel pipe produced by the three-roll mill for hot-rolling seamless steel pipe has high precision. Because of the cross-rolling with the mandrel, the rolling action is repeated many times in one pass, which greatly improves the accuracy of the wall thickness and is not easy to produce. Defects such as scratches, ears, and green lines; the flexibility in production is large, and the pass size can be changed with the help of the clutch of the roll.
Adequate inventory
Standing inventory of carbon seamless tubes, seamless special-shaped tubes, alloy seamless tubes, precision tubes. Various types of seamless steel pipes with a specification of 5-426*0.5-60mm and a length of 2-16m. The cold-rolled precision bright tubes produced by our factory have smooth appearance, uniform wall thickness, no oxide layer, and high precision. The inner hole of the steel pipe can be divided into round type, spline type, plum blossom type, etc. It is widely used in automobiles, motorcycles, electric power, petrochemicals, ships, aerospace, bearings, pneumatic components, oil cylinders, boiler equipment, medical equipment, fitness equipment and other industries.
Attention to detail
No matter how to choose the hot-rolled seamless steel pipe, its quality cannot be ignored. It must be noted that there should be no defects on the surface, such as small cracks or scars, etc., and that the thickness of the pipe wall is the same to ensure uniformity. The physical comparison is still very important. Only after the basic comparison of the physical objects is done, can the steel pipes that meet the needs be selected. The processing technology of each seamless steel pipe is different, which will also affect its application field. Now it is generally processed by cold drawing and hot rolling, and the processing effect of the two and the application of steel pipes will also have certain differences.
Applicable scene
Hot-rolled seamless pipes specifically include low and medium pressure boiler steel pipes, high-pressure boiler steel pipes, seamless steel pipes for ships, petroleum cracking steel pipes, seamless steel pipes for high-pressure fertilizer equipment, oil jacket steel pipes, pipeline steel pipes, hollow sucker rods, and ordinary fluid steel pipes. , structural seamless steel pipes and imported alloy steel pipes, etc., with rich varieties and complete specifications, widely used in petroleum, chemical, electric power, boilers, ships, machinery and other industries, and have been sold all over the world.
Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.
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Packaging & Shipping
Company Profile
Shandong Zhengde Metal Manufacturing Co., Ltd.
is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.
Certifications