High Quality ERW Welded Steel Pipes
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 50MT m.t.
- Supply Capability:
- based on order m.t./month
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ERW Welded Steel Pipes
Application of High Quality ERW Welded Steel Pipes
It is widely applied to line pipe and casing and tubing in oil transportation and casing field, and it is used in Low,high pressure liquid and gassy transportation and it is also good Structure pipe (for furniture, window, door, building , bridge, mechanical etc).
Package: bundles with anti-rust painting and with plastic caps
Standard of High Quality ERW Welded Steel Pipes
API SPEC 5L, API SPEC 5CT, ASTM A53, GB/T9711.1
Steel Grade of High Quality ERW Welded Steel Pipes
API SPEC 5L: B, X42, X46, X52, X56, X60, X65
API SPEC 5CT: J55, K55, N80, L80-1
ASTM A53: A, B, C
GB/T9711.1:L242、L290、L320、L360、L390、L415、L450
Sizes of pipes of High Quality ERW Welded Steel Pipes
*Remark: Besides below sizes, we also can arrange production based on requirement of customers
OD | WT | WEIGHT | ||||
INCH | MM | SCH | MM | INCH | KG/M | LB/INCH |
1 1/2” | 48.3 | STD-40 | 3.68 | 0.145 | 4.09 | 2.75 |
1 1/2” | 48.3 | XS-80 | 5.08 | 0.2 | 5.47 | 3.68 |
2” | 60.3 | STD-40 | 3.91 | 0.154 | 5.49 | 3.69 |
2” | 60.3 | XS-80 | 5.54 | 0.218 | 7.56 | 5.08 |
2 1/2” | 73 | STD-40 | 5.16 | 0.203 | 8.72 | 5.86 |
2 1/2” | 73 | XS-80 | 7.01 | 0.276 | 11.52 | 7.74 |
3” | 88.9 | STD-40 | 5.49 | 0.216 | 11.41 | 7.67 |
3” | 88.9 | XS-80 | 7.62 | 0.3 | 15.43 | 10.37 |
3 1/2” | 101.6 | STD-40 | 5.74 | 0.226 | 13.71 | 9.21 |
3 1/2” | 101.6 | XS-80 | 8.08 | 0.318 | 18.83 | 12.65 |
4” | 114.3 | STD-40 | 6.02 | 0.237 | 16.24 | 10.91 |
4” | 114.3 | XS-80 | 8.56 | 0.337 | 22.55 | 15.15 |
5” | 141.3 | STD-40 | 6.55 | 0.258 | 21.99 | 14.78 |
5” | 141.3 | XS-80 | 9.53 | 0.375 | 31.28 | 21.02 |
6” | 168.3 | STD-40 | 7.11 | 0.28 | 28.55 | 19.19 |
6” | 168.3 | XS-80 | 10.97 | 0.432 | 42.99 | 28.89 |
8” | 219.1 | STD-40 | 8.18 | 0.322 | 42.98 | 28.88 |
8” | 219.1 | XS-80 | 12.7 | 0.5 | 65.3 | 43.88 |
10” | 273 | STD-40 | 9.27 | 0.365 | 60.9 | 40.92 |
10” | 273 | 80 | 15.09 | 0.594 | 96.95 | 65.15 |
12” | 323.8 | STD | 9.53 | 0.375 | 74.61 | 50.13 |
12” | 323.8 | 40 | 10.31 | 0.406 | 80.51 | 54.1 |
12” | 323.8 | XS | 12.7 | 0.5 | 98.42 | 66.14 |
12” | 323.8 | 80 | 17.48 | 0.688 | 133.38 | 89.63 |
14” | 355.6 | 40 | 11.13 | 0.438 | 95.51 | 64.18 |
14” | 355.6 | XS | 12.7 | 0.5 | 108.48 | 72.9 |
14” | 355.6 | 80 | 19.05 | 0.75 | 159.71 | 107.32 |
16” | 406.4 | XS-40 | 12.7 | 0.5 | 124.55 | 83.69 |
18” | 457 | STD | 9.53 | 0.375 | 106.23 | 71.38 |
18” | 457 | 40 | 14.27 | 0.562 | 157.38 | 105.75 |
18” | 457 | 80 | 23.83 | 0.938 | 257.13 | 172.78 |
20” | 508 | 40 | 15.09 | 0.594 | 185.28 | 124.5 |
20” | 508 | 80 | 26.19 | 1.031 | 314.33 | 211.22 |
Standard: API SPEC 5L
Mechanical Properties of High Quality ERW Welded Steel Pipes
Standard | Grade | (MPa) | (MPa) | |||
Yield strength | Tensile Strength | |||||
API SPEC 5L | PSL1 | |||||
B | ≥241 | ≥414 | ||||
×42 | ≥290 | ≥414 | ||||
×46 | ≥317 | ≥434 | ||||
×52 | ≥359 | ≥455 | ||||
×56 | ≥386 | ≥490 | ||||
×60 | ≥414 | ≥517 | ||||
×65 | ≥448 | ≥531 | ||||
×70 | ≥483 | ≥565 | ||||
PSL2 | ||||||
| Min | Max | Min | Max | ||
B | 241 | 448 | 441 | 758 | ||
×42 | 290 | 496 | 414 | 758 | ||
×46 | 317 | 524 | 434 | 758 | ||
×52 | 359 | 531 | 455 | 758 | ||
×56 | 386 | 544 | 490 | 758 | ||
×60 | 414 | 565 | 517 | 758 | ||
×65 | 448 | 600 | 531 | 758 | ||
×70 | 483 | 621 | 565 | 758 | ||
Chemical Composition (%) of High Quality ERW Welded Steel Pipes
Standard | Grade | C | Mn | P | S | TI | CEV |
Max | Max | Max | Max | Max | Max | ||
API SPEC 5L | PSL1 | ||||||
B | 0.26 | 1.2 | 0.030 | 0.030 | 0.04 |
- | |
×42 | 0.26 | 1.3 | 0.030 | 0.030 | 0.04 | ||
×46,×52,×56,X60 | 0.26 | 1.4 | 0.030 | 0.030 | 0.04 | ||
X65 | 0.26 | 1.45 | 0.030 | 0.030 | 0.06 | ||
X70 | 0.26 | 1.65 | 0.030 | 0.030 | 0.06 | ||
PSL2 | |||||||
B | 0.22 | 1.20 | 0.025 | 0.015 | 0.04 |
0.43 | |
×42 | 0.22 | 1.30 | 0.025 | 0.015 | 0.04 | ||
×46,×52,×56, X60 | 0.22 | 1.40 | 0.025 | 0.015 | 0.04 | ||
X65 | 0.22 | 1.45 | 0.025 | 0.015 | 0.06 | ||
X70 | 0.22 | 1.65 | 0.025 | 0.015 | 0.06 |
Standard: GB/9711.1
Mechanical Properties of High Quality ERW Welded Steel Pipes
Standard | Grade | (MPa) | (MPa) | Min(%) |
Yield strength | Tensile Strength | Elongation | ||
GB/T9711.1 | L245 | ≥245 | ≥415 | 21 |
L290 | ≥290 | ≥415 | 21 | |
L320 | ≥320 | ≥435 | 20 | |
L360 | ≥360 | ≥460 | 19 | |
L390 | ≥390 | ≥490 | 18 | |
L415 | ≥415 | ≥520 | 17 | |
L450 | ≥450 | ≥535 | 17 | |
L485 | ≥485 | ≥570 | 17 |
Chemical Composition(%) of High Quality ERW Welded Steel Pipes
Standard | Grade | C | Mn | P | S |
Max | Max | Max | Max | ||
GB/T9711.1 | L245 | 0.26 | 0.15 | 0.030 | 0.030 |
L290 | 0.28 | 1.25 | 0.030 | 0.030 | |
L320, L360 | 0.30 | 1.25 | 0.030 | 0.030 | |
L390, L415 | 0.26 | 1.35 | 0.030 | 0.030 | |
L450 | 0.26 | 1.40 | 0.030 | 0.030 | |
L485 | 0.23 | 1.60 | 0.025 | 0.030 |
Standard: GB/9711.2
Mechanical Properties of High Quality ERW Welded Steel Pipes
Standard | Grade | (MPa) Yield strength | (MPa) Tensile Strength | Min(%) Elongation | ||
GB/T9711.2 | Rt0.5Min | Rt0.5Max | RmMin | Rt0.5/Rm Max | ||
L245 |
245 |
440 | 0.80 |
22 | ||
L245 | 0.85 | |||||
L290 |
290 |
440 | 0.80 | 21 | ||
L290 | 0.85 | |||||
L360 |
360 |
510 | 0.85 |
20 | ||
L360 | 0.85 | |||||
L415 |
415 |
565 | 0.85 |
18 | ||
L415 | 0.85 | |||||
L450 | 450 | 570 | 535 | 0.87 | 18 | |
L485 | 485 | 605 | 570 | 0.90 | 18 |
Chemical Composition (%) of High Quality ERW Welded Steel Pipes
Standard | Grade | C | Mn | P | S | V | Nb | Ti | CEV |
Max | Max | Max | Max | Max | Max | Max | Max | ||
GB/T9711.2 | L245NB | 0.16 | 1.1 | 0.025 | 0.020 | - | - | - | 0.42 |
L290NB | 0.17 | 1.2 | 0.025 | 0.020 | 0.05 | 0.05 | 0.04 | 0.42 | |
L360NB | 0.20 | 1.6 | 0.025 | 0.020 | 0.10 | 0.05 | 0.04 | 0.45 | |
L415NB | 0.21 | 1.6 | 0.025 | 0.020 | 0.15 | 0.05 | 0.04 | - | |
L245NB, L290NB |
0.16 |
1.5 | 0.025 | 0.020 |
0.04 |
0.04 |
- |
0.4 | |
L360NB | 0.16 | 1.6 | 0.025 | 0.020 | 0.05 | 0.05 | 0.04 | 0.41 | |
L415NB | 0.16 | 1.6 | 0.025 | 0.020 | 0.08 | 0.05 | 0.06 | 0.42 | |
L450NB | 0.16 | 1.6 | 0.025 | 0.020 | 0.10 | 0.05 | 0.06 | 0.43 | |
L485NB | 0.16 | 1.7 | 0.025 | 0.020 | 0.10 | 0.06 | 0.06 | 0.43 |
Standard: ASTM A53
Mechanical Properties of High Quality ERW Welded Steel Pipes
Standard | Grade | (MPa) | (MPa) |
Yield strength | Tensile Strength | ||
ASTM A53M | A | 205 | 330 |
B | 240 | 415 |
Chemical Composition(%) of High Quality ERW Welded Steel Pipes
Standard | Grade | C | Mn | P | S | V | Ni | Cu | Cr | Mo |
Max | Max | Max | Max | Max | Max | Max | Max | Max | ||
ASTM A53M | A | 0.25 | 0.95 | 0.05 | 0.045 | 0.08 | 0.4 | 0.5 | 0.4 | 0.15 |
B | 0.30 | 1.20 | 0.05 | 0.045 | 0.08 | 0.4 | 0.5 | 0.4 | 0.15 |
- Q:What are the disadvantages of using steel pipes?
- One major disadvantage of using steel pipes is their susceptibility to corrosion. Over time, exposure to moisture and certain chemicals can cause the pipes to rust and weaken, leading to leaks or structural damage. Additionally, steel pipes are generally heavier and more expensive than alternative materials, making them less suitable for certain applications where weight and cost are crucial factors.
- Q:What are the different methods of protecting steel pipes from external damage?
- There are several methods of protecting steel pipes from external damage, including coating the pipes with a corrosion-resistant material such as epoxy or polyethylene, applying a layer of protective tape, installing a cathodic protection system, using concrete or rock shielding, and implementing measures to prevent soil movement or impact damage.
- Q:How are steel pipes used in the construction of power plants?
- Steel pipes are widely used in the construction of power plants as they serve multiple purposes. They are primarily used for transporting various fluids, such as water, steam, and fuel, throughout the plant. Steel pipes are also used for the construction of boilers, heat exchangers, and condensers, which are essential components in power generation. Additionally, steel pipes are utilized in the construction of cooling systems, air ventilation systems, and structural supports within power plants. Overall, steel pipes are crucial for the efficient and reliable operation of power plants.
- Q:How are steel pipes used in the construction of underground utilities?
- Steel pipes are commonly used in the construction of underground utilities as they are highly durable and can withstand the pressure and weight of the surrounding soil. They are primarily used for various applications such as transporting water, natural gas, and sewage, as well as for electrical conduit systems. Additionally, steel pipes are resistant to corrosion, which makes them ideal for long-term underground installations.
- Q:Are steel pipes suitable for underground mining applications?
- Yes, steel pipes are suitable for underground mining applications. Steel pipes have been widely used in the mining industry for various purposes such as water supply, ventilation, and conveyance of materials. The strength and durability of steel pipes make them suitable for the harsh and demanding conditions of underground mining. Steel pipes are known for their high tensile strength, which allows them to withstand the pressure and stress exerted by the surrounding rock and earth in underground mining operations. They can handle heavy loads, making them suitable for transporting materials and supporting structures in mining tunnels. Additionally, steel pipes are resistant to corrosion, which is crucial in underground mining where moisture and various chemicals are present. Their corrosion resistance ensures the longevity and reliability of the pipes, reducing the need for frequent replacements and maintenance. Furthermore, steel pipes can be easily welded and joined, allowing for customization and flexibility in designing underground mining systems. They can be adapted to various shapes and sizes to meet specific mining requirements. In conclusion, steel pipes are highly suitable for underground mining applications due to their strength, durability, corrosion resistance, and versatility. They have been proven to be effective in supporting mining operations and ensuring the safety and efficiency of underground mining processes.
- Q:What are the different types of pipe fittings used with steel pipes?
- Some of the different types of pipe fittings used with steel pipes include elbows, tees, couplings, unions, flanges, and reducers.
- Q:How are steel pipes used in the manufacturing of food processing machinery and equipment?
- Steel pipes are commonly used in the manufacturing of food processing machinery and equipment due to their durability, corrosion resistance, and high strength. These pipes are used for various purposes such as fluid transportation, steam generation, and structural support in the machinery. They are also crucial for conveying liquids, gases, and other food ingredients safely and hygienically throughout the manufacturing process. Additionally, steel pipes can withstand high temperatures and pressures, making them ideal for applications like sterilization, pasteurization, and cooking in food processing machinery.
- Q:Hot galvanized steel pipe for use?
- The use of hot galvanized steel pipe: mainly used for the delivery of gas, heating.In the greenhouse gas, heating, with the kind of pipe and galvanized pipe, galvanized pipe as a water pipe, produced a lot of rust in the tube, the outflow of water not only pollute the sanitary ware, and mixed with smooth inner wall corrosion caused by bacteria, heavy metal content in the water is too high, serious harm to human health. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries have also issued a civilization, from two, 000 years since the prohibition of galvanized pipe, the current New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe.
- Q:What are the standard dimensions and weight of steel pipes?
- The standard dimensions and weight of steel pipes vary depending on the specific type and grade of pipe. However, there are some common standard dimensions and weight ranges that are widely accepted in the industry. For seamless steel pipes, the standard dimensions typically range from 1/8 inch to 60 inch in outer diameter (OD) and from 10.3 mm to 914.4 mm in wall thickness. The weight of seamless steel pipes can vary from a few kilograms to several metric tons, depending on the size and length of the pipe. Similarly, for welded steel pipes, the standard dimensions range from 1/2 inch to 80 inch in OD and from 3.2 mm to 25.4 mm in wall thickness. The weight of welded steel pipes can also vary greatly, ranging from a few kilograms to several metric tons. It is important to note that the dimensions and weight of steel pipes can be customized based on specific project requirements. Additionally, different countries or regions may have their own standards and specifications for steel pipes, so it is always advisable to consult the relevant standards and guidelines when determining the dimensions and weight of steel pipes for a particular application.
- Q:20# seamless steel pipe and seamless steel pipe 20G what is the difference?
- The difference is: 20# ordinary steel seamless steel pipe. 20G is the type of steel for high pressure boiler tubes.
1. Manufacturer Overview |
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Location | Hebei,China |
Year Established | 2005 |
Annual Output Value | Above 100 Million RMB |
Main Markets | Main land;Middle East;Southeast Asia |
Company Certifications | ISO9001 |
2. Manufacturer Certificates |
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a) Certification Name | |
Range | |
Reference | |
Validity Period |
3. Manufacturer Capability |
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a)Trade Capacity | |
Nearest Port | Tianjin;Qingdao |
Export Percentage | 41% - 50% |
No.of Employees in Trade Department | |
Language Spoken: | English;Chinese;Korean |
b)Factory Information | |
Factory Size: | 120mu |
No. of Production Lines | 11 |
Contract Manufacturing | OEM Service Offered;Design Service Offered |
Product Price Range | High Average |
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High Quality ERW Welded Steel Pipes
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 50MT m.t.
- Supply Capability:
- based on order m.t./month
OKorder Service Pledge
OKorder Financial Service
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