Q195,A36,SS330 straight welded steel pipe for low pressure fluid transport
What is straight welded steel pipe？
Straight seam welded pipe is a kind of welded pipe. The steel pipe made of hot or cold rolled steel plate or steel strip coil is welded straight seam welded on the welding equipment. The pipe is called straight seam welded pipe. (Because the welding of the steel pipe is a straight line, so named).
Standards And Grades
The quality and specifications of welded steel pipes are regulated by a variety of international and national standards, including ASTM A53, ASTM A500, ASTM A795, API 5L, BS1387, BS1139, EN39, EN10219, EN10255, JIS G3444, ISO65, GB/T3091, GB/T13793, etc. These standards ensure that the pipes meet the required quality and safety requirements for different applications.
| ASTMA53,ASTM A500,ASTM A795,API 5L | BS1387,BS1139,EN39,EN10219, EN10255 | JIS G3444 | GB/T3091,GB/T13793 |
| Grade A | S195 | STK290 | Q195 |
| GradeB | S235 | STK400 | Q235 |
| Grade C | S355 | STK500 | Q355 |
Normal sizes
|
Outside Diameter |
Thickness |
||||||
|
SCH10 |
SCH40 |
Class A light |
Class B medium |
Class C heavy |
|||
|
DN15 |
1/2" |
21.3mm |
2.11mm |
2.77mm |
2mm |
2.6mm |
|
|
DN20 |
3/4" |
26.7mm |
2.1lmm |
2.87mm |
2.3mm |
2.6mm |
3.2mm |
|
DN25 |
I" |
33.4mm |
2.77mm |
3.38mm |
2.6mm |
3.2mm |
4mm |
|
DN32 |
1-1/4" |
42.2mm |
2.77mm |
3.56mm |
2.6mm |
3.2mm |
4mm |
|
DN40 |
1-1/2" |
48.3mm |
2.77mm |
3.68mm |
2.9mm |
3.2mm |
4mm |
|
DN50 |
2" |
60.3mm |
2.77mm |
3.91mm |
2.9mm |
3.6mm |
4.5mm |
|
DN65 |
2-1/2" |
73mm 76mm |
3.05mm |
5.16mm |
3.2mm |
3.6mm |
4.5mm |
|
DN80 |
3" |
88.9mm |
3.05mm |
5.49mm |
3.2mm |
4mm |
5mm |
|
DN90 |
3-1/2" |
101.6mm |
3.05mm |
5.74mm |
|||
|
DN100 |
4" |
114.3mm |
3.05mm |
6.02mm |
3.6mm |
4.5mm |
5.4mm |
|
DN125 |
5" |
141.3mm |
3.4mm |
6.55mm |
5mm |
5.4mm |
|
|
DN150 |
6" |
168.3mm 165mm |
3.4mm |
7.1lmm |
5mm |
5.4mm |
|
|
DN200 |
8" |
219.1mm |
3.76mm |
8.18mm |
|||
|
DN250 |
10" |
273.1mm |
4.19mm |
9.27mm |
|||
Advantages
(1)High strength: straight seam welded steel pipe is made of metal after heat treatment, and its pressure resistance is generally above 30MPa.
(2)Strong toughness: straight seam welded steel pipe can withstand large span load without being crushed; The traditional welded steel pipe is often easy to be corroded or deformed due to long-term use, and can not resist the impact.
(3)Good durability: the life of straight-seam welded steel pipe is much longer than that of traditional welded steel pipe, and its service life can reach 50 years.
(4)Beautiful and generous: straight welded steel pipe appearance beautiful and generous, easy to manufacture.
Packaging and Shipping
Standard export packing. The modes of transportation include containerized sea freight, bulk sea freight, air freight, land transportation, and multi-modal transportation.
Application
⑴ Oil and gas industry: Straight welded pipes, as the preferred material for pipelines, play an important role in oil and gas extraction, transportation and processing. Its high strength and corrosion resistance ensure safe and reliable operation of the pipeline.
⑵ Construction industry: In the construction industry, straight welded pipes are widely used in structural support, water supply and drainage systems, fire fighting systems and other aspects. Its rugged properties provide a stable and reliable infrastructure for buildings.
⑶ Chemical industry: The chemical industry has high requirements for corrosion resistance of pipeline products. Through the application of surface treatment and coating technology, straight welded pipe can meet the requirements of various corrosive media, and become an indispensable pipeline material in chemical equipment.
fAQ
Q: Are you a factory?
A: Yes, we are integrated with industry and trade.
Q: What is the minimum quantity of your order?
A: It depends on the size and number of products.
Q: Can you provide samples?
A: Samples are available, freight payable.
Q: How do you control quality?
A: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO, CE, SGS, TUV, Alibaba Verified.
Q: What are the advantages of your company?
A: We have many professionals, technical personnel, more competitive prices and best after-dales service than other steel companies.
Q: How many countries you already exported?
A: Exported to more than 50 countries mainly from US, Canada, Germany, UK, Kuwait, Turkey, Philippines, Vietnam, Kenya, Ghana, Panama, Colombia, Peru, Chile, etc.