A steel pipe made of a single piece of metal with no seams on its surface is called a seamless steel pipe. According to the production method, the seamless pipe is divided into a hot rolled pipe, a cold rolled pipe, a cold drawn pipe, an extruded pipe, a top pipe, and the like. According to the shape of the section, the seamless steel tube is divided into two types: a circular shape and a special shape. The shaped tube has a plurality of complicated shapes such as a square shape, an elliptical shape, a triangular shape, a hexagonal shape, a melon shape, a star shape, and a winged tube. The maximum diameter is 650mm and the minimum diameter is 0.3mm. Depending on the application, there are thick-walled tubes and thin-walled tubes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel tubes for automobiles, tractors, and aviation.
|
Welding Line Stainless Steel Tubing Specification |
|
|
Material |
304, 201, 304L, 316, 316L, or as customer's request |
|
Standard |
ASTM, AISI, GB, JIS, as customers' request |
|
Size |
Round Tube: OD: 6-114mm |
|
Thickness |
0.25mm-3.0mm |
|
Length |
3-6m or customize |
|
Sample |
Free sample is available |
|
Tolerance |
Outer diameter:±0.1mm |
|
Thickness:±0.02mm |
|
|
Length:±1cm |
|
|
Welding Line Type |
ERW(Electrical Resistance Weld) |
|
Lead time |
15-30 days |
|
Application |
Railings, Balustrade, Furniture, Fence, Decorations, Constructions, Food industry, etc. |
|
Product |
drawing |
Outside Diameter (mm) |
||
|
round |
|
|
|
|
|
6 |
25 |
60 |
||
|
8 |
25.4 |
62 |
||
|
9 |
28 |
63 |
||
|
9.5 |
30 |
65 |
||
|
10 |
31.5 |
70 |
||
|
11 |
32 |
76 |
||
|
12.5 |
33.5 |
80 |
||
|
12.7 |
35 |
85 |
||
|
14 |
36 |
89 |
||
|
15 |
38 |
102 |
||
|
15.9 |
40 |
108 |
||
|
16 |
41 |
114 |
||
|
18 |
42 |
|
||
|
19 |
45 |
|
||
|
20 |
48 |
|
||
|
21 |
50 |
|
||
|
22 |
50.8 |
|
||
|
23 |
51 |
|
||
|
23.5 |
54 |
|
||
|
24 |
57 |
|
||
|
Grade |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
N |
Ti |
|
SUS304 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
8.0-10.0 |
18/20 |
-- |
-- |
-- |
-- |
|
SUS301 |
≤0.15 |
≤1.00 |
|
|
|
|
|
|
|
|
|
|
SUS201 |
≤0.15 |
≤0.75 |
≤5.5/7.5 |
≤0.06 |
≤0.030 |
0.8-1.2 |
16/18 |
-- |
-- |
≤0.25 |
-- |
|
SUS430 |
≤0.12 |
≤0.750 |
≤1.00 |
≤0.040 |
≤0.030 |
≤0.60 |
16/18 |
-- |
-- |
-- |
-- |
|
SUS443 |
≤0.015 |
≤1.00 |
≤1.00 |
≤0.04 |
≤0.030 |
-- |
≥20 |
-- |
≤0.3 |
≤0.025 |
≤0.8 |
|
SUS310S |
≤0.1 |
≤1.50 |
≤2.00 |
≤0.045 |
≤0.03 |
19-22 |
24-26 |
-- |
-- |
≤0.10 |
-- |
|
SUS316L |
≤0.07 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.30 |
10-14 |
16-18.5 |
2.0-3.0 |
-- |
≤0.11 |
-- |
