square pipe
2 year agoSeamless steel tubes are formed at one time during rolling.Welded steel pipes need to be welded after rolling, generally with
spiral welding and straight welding. The performance seamless tube is better, and of course the price is higher.
Steel pipes are classified into two types; Seamless steel pipes and welded steel pipes according to their manufacturing methods.
The seamless steel pipe is made of high-quality carbon steel or alloy steel and has hot rolling and cold rolling (extraction).
The welded steel pipe is formed by welding a steel plate rolled into a tubular shape by a seam or a spiral seam. In terms of the manufacturing method, it is further divided into a welded steel pipe for low-pressure fluid transportation, a spiral-welded electric steel pipe, a direct-wound welded steel pipe, an electric welded pipe, and the like. Seamless steel tubes can be used in a variety of liquids, gas pipelines, and the like. Welded pipes can be used for water pipes, gas pipes,heating pipes, etc.
COLD ROLLED BLACK ROUND AND SHS/RHS STEEL TUBE
ROUND PIPE
SQUARE PIPE
RECTANGULAR TUBE
OVAL TUBE
SIZE(mm)
thickness(mm)
SIZE(mm)
THICKNESS(mm)
size(mm)
thickness(mm)
size(mm)
thickness(mm)
14
0.6-1.0
12*12
0.6-1.0
10*20
0.6-1.2
15*30
0.6-1.5
16
0.6-1.4
15*15
0.6-1.2
12.5*25
0.6-1.3
20*40
0.6-1.8
19
0.6-1.5
16*16
0.6-1.3
13*26
0.6-1.5
19*49
0.6-1.8
20
0.6-1.5
18*18
0.6-1.3
13*38
0.6-1.5
20*50
0.6-1.8
22
0.6-1.5
19*19
0.6-1.5
15*30
0.6-1.5
25*50
0.6-1.8
25
0.6-1.8
20*20
0.6-1.5
16*36
0.6-1.5
30*60
0.7-1.8
25.4
0.6-1.8
22*22
0.6-1.5
17*37
0.6-1.5
L / T / Z SHAPE TUBE
28
0.6-1.8
23*23
0.6-1.5
17*42
0.6-1.5
SIZE
THICKNESS
28.6
0.7-1.8
24*24
0.6-1.5
19*38
0.6-1.5
28L/T/Z
0.7-1.5
30
0.7-1.8
25*25
0.6-1.5
20*30
0.6-1.5
38L/T/Z
0.7-1.5
32
0.7-1.8
28*28
0.6-1.5
20*40
0.6-1.5
34L/T/Z
0.7-1.5
34
0.7-1.8
30*30
0.6-1.5
20*50
0.6-1.5
42/L/T/Z
0.7-1.5
35
0.7-1.8
32*32
0.6-1.5
30*40
0.6-1.5
If you have more requirements
It can be customized .
38
0.7-1.8
35*35
0.6-1.5
25*40
0.6-1.5
40
0.7-1.8
36*36
0.6-1.5
25*50
0.6-1.5
42
0.7-1.8
37*37
0.6-1.5
27*40
0.6-1.5
45
0.7-1.8
38*38
0.6-1.5
30*50
0.7-1.5
48
0.7-1.8
40*40
0.6-1.5
30*60
0.7-1.5
50
0.7-1.8
47*47
0.7-1.5
40*60
0.7-1.5
58
0.8-1.8
50*50
0.8-1.8
40*80
0.8-1.5
60
0.8-1.8
60*60
0.8-1.8
25*38
0.6-1.5
Product name | carbon round steel tube/pipe |
Out diameter | 21.3mm-610mm, 1/2"-24" |
Wall Thickness | 2.77mm-50mm, SCH10, SCH20, SCH30, SCH40S, STD, SCH40, SCH60, SCH80S, XS, SCH80 etc |
Length | 1m-12m |
Standard | API 5L, API 5CT, ASTM A53, ASTM A106,ASTM A252, ASTM A795, BS1387, EN10255, EN10219, EN10217, DIN2440/2444, ISO3183, ISO11960, JISG3444, JISG3454 etc. |
Material/steel grade |
A, B, X42, X46, X52, X56, X60, X65, X70, L175, L175P, L210, L245, L290, L320, L360, L390, L415, L450, L485, BR, X42R, BN, X42N, X46N, X52N, X56N, X60N, BM, X42M, X46M, X52M, X56M, X60M, X65M, X70M, X80M, X90M, X100M, L245N, L290N, L320N, L360N, L390N, L415N, L245M, L290M, L320M, L360M, L390M, L415M, L450M, L485M, L555M, L625M, L690M, H40, J55, K55, M65, L80, C95, N80, Q125, S235GT, S195T, Grade 1, Grade 2, Grade 3, ST33-2, St33, St37, St42, St34-2, St37-2, St42-2, St52-3, P195, P235, P265, S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S275NLH, S355NH, S355NLH, S460NH, S460NLH, S275MH, S275MLH, S355MH, S355MLH, S420MH, S420MLH, S460MH, S460MLH, STK290, STK400, STK490, STK500, STK540, STPG370, STPG410 etc. |
End | Plain end, beveled, cut square, grooved, threaded and coupling, etc. |
Finish | Bare, varnished, black lacquer, Bitumen Coating, zinc coating, anti-corrosion coating, 3PE, FBE, Epoxy, Cement Mortar, as per customer's requirement |
Test |
Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test. Mill Test CertificateEN 10204/3.1B |
Application |
Line pipe for use in pipeline transportation systems in the petroleum and natural gas industries - for use as casing and tubing for wells, screwed and socketed steel tubes and tubulars and for plain end steel tubes - suitable for welding or for screwing to BS21 pipe threads, loose steel tubes, scaffolds - used for the conveyance of fluids as well as for other applications, applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles - for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes - suitable for nominal pressure 25 for liquids and nominal pressure 10 for air and non-hazardous gases - pressure purposes - applies to structural hollow sections - general structure purpose and pressure service etc. |
Product name | carbon shs/rhs steel tube/pipe | |
Size | OD | 20*20-500*500MM |
Wall Thickness | 0.6 mm-15mm | |
Length | 1-12M | |
Standard | ASTM A 500 Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes | |
BS EN 10219-2 :2006 Cold formed welded structural hollow sections finegrain steels | ||
Steel Grade | S235, S235JR, S235 G2H, S275, S275JR, S355JRH ,S355J2H | |
St33, St37, St44, ST52 | ||
JIS G3444 STK290,STK400,STK500,STK490,STK540 | ||
Steel material | Q195 → SS330,ST37,ST42 | |
Q235 → SS400,S235JR | ||
Q345 → S355JR,SS500,ST52 | ||
Zinc Weight | 40g,60g,80g,100g,120g,270g,400g,500g,550g | |
7μm ,8μm, 15μm ,20μm ,40μm ,60μm,70μm,80μm | ||
Usage | 1)Low Pressure Liquid, Water, Gas, Oil, Line Pipe | |
2)Construction , Structure | ||
3)Agriculture fence post , door pipe |
Q.What kind of work does your company do?
A:Our company is a professional manufacturer.
We mainly produces stainless steel and carbon steel and even galvanized products.Such as plate/pipe/coil/round bars/sections,etc.
Q. Do you provide free samples?
A:Yes, we can provide free sample for testing.
Q. How long is your delivery time?
A:Generally it is 7-15 days.if the goods are not in stock,it is according to quantity.
Q. How can we guarantee quality?
A:Always a pre-production sample before mass production; always final Inspection before shipment.
Q:What are the advantages of your company?
A:
(1): Prime quality and reasonable price.
(2): Wide excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be customized as your requirements.
Q. What is your terms of payment ?
A:We accept T/T ,L/C ,Western union, paypal,etc.
The payment method can be negotiated by both parties according to the actual situation.
Q:What are the advantages of your company?
A:
(1): Prime quality and reasonable price.
(2): Wide excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be provided as your requirements.
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Main Product:
Galvanized Steel Pipe,
Rectangular Tube,
Welded Steel Pipe ,
Carbon Steel Coil,
Stainless Steel,
Seamless Steel Pipe
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