Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api 2b q355b carbon round steel pipe in China. Welcome to buy discount api 2b q355b carbon round steel pipe made in China here from our factory. Quality products and low price are available.
Product introduction
LSAW steel pipe is widely used in oil and gas transmission, building structure and water conservancy engineering because of its excellent mechanical properties and excellent welding quality. With its efficient production process and reliable performance, it has become an ideal choice for modern industrial transmission and structural support, helping engineering projects achieve more efficient and safer construction goals.
Efficient welding process, more stable quality
Submerged arc welded steel pipe adopts advanced submerged arc welding technology, through continuous arc operation, the steel is deeply fused and formed a uniform weld. Compared with the traditional welding method, this process significantly improves the welding quality and efficiency, effectively avoids the common problems such as pores and cracks, and provides a solid guarantee for the high performance of the steel pipe.
Strong adaptability to meet diverse needs
Whether it is low pressure conveying or high pressure operation, submerged arc welded steel pipes can easily cope with its diverse specifications. Users can choose different pipe diameters and wall thickens according to specific needs to achieve personalized application solutions. Because of this, it is the ideal material for all kinds of complex engineering projects, showing excellent adaptability.
Environmental protection and economy, promote sustainable development
Submerged arc welded steel pipe not only has high production efficiency, but also excellent material utilization rate. It reduces the waste of resources in the manufacturing process and has a long service life, reducing the maintenance and replacement costs of the project. In the pursuit of environmental protection and economic benefits in modern society, this steel pipe is gradually becoming an important choice to promote sustainable development.
Outer Diameter and Wall Thickness
| NPS | DN | OD | Sch10 | Sch20 | Sch30 | Std | Sch40 | Sch60 | XS | Sch80 | Sch100 | Sch120 | Sch140 | Sch160 | XXS | Sch5s | Sch10s | Sch40s | Sch80s |
| 1/8 | 6 | 10.3 | 1.45 | 1.73 | 1.73 | 2.41 | 2.41 | 1.24 | 1.73 | 2.41 | |||||||||
| 1/4 | 8 | 13.7 | 1.85 | 2.24 | 2.24 | 3.02 | 3.02 | 1.65 | 2.24 | 3.02 | |||||||||
| 3/8 | 10 | 17.1 | 1.85 | 2.31 | 2.31 | 3.20 | 3.20 | 1.65 | 2.31 | 3.20 | |||||||||
| 1/2 | 15 | 21.3 | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 | 1.65 | 2.11 | 2.77 | 3.73 | ||||||
| 3/4 | 20 | 26.7 | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 | 1.65 | 2.11 | 2.87 | 3.91 | ||||||
| 1 | 25 | 33.4 | 2.90 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 | 1.65 | 2.77 | 3.38 | 4.55 | ||||||
| 1 1/4 | 32 | 42.2 | 2.97 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.70 | 1.65 | 2.77 | 3.56 | 4.85 | ||||||
| 1 1/2 | 40 | 48.3 | 3.18 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.15 | 1.65 | 2.77 | 3.68 | 5.08 | ||||||
| 2 | 50 | 60.3 | 3.18 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 | 1.65 | 2.77 | 3.91 | 5.54 | ||||||
| 2 1/2 | 65 | 73 | 4.78 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 | 2.11 | 3.05 | 5.16 | 7.01 | ||||||
| 3 | 80 | 88.9 | 4.78 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.24 | 2.11 | 3.05 | 5.49 | 7.62 | ||||||
| 3 1/2 | 90 | 101.6 | 4.78 | 5.74 | 5.74 | 8.08 | 8.08 | 2.11 | 3.05 | 5.74 | 8.08 | ||||||||
| 4 | 100 | 114.3 | 4.78 | 6.02 | 6.02 | 8.56 | 8.56 | 11.13 | 13.49 | 17.12 | 2.11 | 3.05 | 6.02 | 8.56 | |||||
| 5 | 125 | 141.3 | 6.55 | 6.55 | 9.53 | 9.53 | 12.70 | 15.88 | 19.05 | 2.77 | 3.40 | 6.55 | 9.53 | ||||||
| 6 | 150 | 168.3 | 7.11 | 7.11 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | 2.77 | 3.40 | 7.11 | 10.97 | ||||||
| 8 | 200 | 219.1 | 6.35 | 7.04 | 8.10 | 8.18 | 10.31 | 12.70 | 12.70 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 | 2.77 | 3.76 | 8.18 | 12.70 | |
| 10 | 250 | 273.1 | 6.35 | 7.80 | 9.27 | 9.27 | 12.70 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | 25.40 | 3.40 | 4.19 | 9.27 | 12.70 | |
| 12 | 300 | 323.9 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.70 | 17.48 | 21.44 | 25.40 | 28.58 | 33.32 | 25.40 | 3.96 | 4.57 | 9.53 | 12.70 | |
| 14 | 350 | 355.6 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.70 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | 3.96 | 4.78 | |||
| 16 | 400 | 406.4 | 6.35 | 7.92 | 9.53 | 9.53 | 12.70 | 16.66 | 12.70 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | 4.19 | 4.78 | |||
| 18 | 450 | 457.2 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.70 | 23.83 | 29.36 | 34.96 | 39.67 | 45.24 | 4.19 | 4.78 | |||
| 20 | 500 | 508 | 6.35 | 9.53 | 12.70 | 9.53 | 15.09 | 20.62 | 12.70 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 | 4.78 | 5.54 | |||
| 22 | 550 | 558.8 | 6.35 | 9.53 | 12.70 | 9.53 | 22.23 | 12.70 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | 4.78 | 5.54 | ||||
| 24 | 600 | 609.6 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.70 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | 5.54 | 6.35 | |||
| 26 | 650 | 660 | 7.92 | 12.70 | 9.53 | 12.70 | |||||||||||||
| 28 | 700 | 711.2 | 7.92 | 12.70 | 15.88 | 9.53 | 12.70 | ||||||||||||
| 30 | 750 | 762 | 7.92 | 12.70 | 15.88 | 9.53 | 12.70 | ||||||||||||
| 32 | 800 | 812.8 | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | 12.70 | |||||||||||
| 34 | 850 | 863.6 | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | 12.70 | |||||||||||
| 36 | 900 | 914.4 | 7.92 | 12.70 | 15.88 | 9.53 | 19.05 | 12.70 | |||||||||||
| 38 | 950 | 965.2 | 9.53 | 12.70 | |||||||||||||||
| 40 | 1000 | 1016 | 9.53 | 12.70 | |||||||||||||||
| 42 | 1050 | 1066.8 | 9.53 | 12.70 | |||||||||||||||
| 44 | 1100 | 1117.6 | 9.53 | 12.70 | |||||||||||||||
| 46 | 1150 | 1168.4 | 9.53 | 12.70 | |||||||||||||||
| 48 | 1200 | 1219 | 9.53 | 12.70 | |||||||||||||||
| 52 | 1300 | 1320.8 | |||||||||||||||||
| 56 | 1400 | 1422.4 | |||||||||||||||||
| kg/meter=(OD-TK)*TK*0.02466 | |||||||||||||||||||
Specifications

LSAW STEEL PIPE production flow

Raw Material Inventory Statistics-Raw Material Incoming Inspection-Raw Material Visual & Dimensional Inspection-End Tab Welding-Plate Ultrasonic Test-End Milling-Rust Removal and Cleaning of Plate-Edge Crimping-Cold Forming-Tack Weld-Weld Inspection and Repair-Internal Wall Dedusting-Inside Welding-Outside Welding-Remove Slag and End Tab & Take macroscopic samples-UT Test before Expansion(Optional items)-R.T test before-Expanding-Mechanical-Expansion-Hydrostatic Testing-Repair of Pipe End Welding-Pipe End Beveling-U.T Test after Expanding-R.T Test after Expanding-Pipe Ends Magnetic Particle Inspection(Optional items)-Dimension Inspection, Weighing, Length Measurement-Pipe End Residual Magnetic Inspection-Marking and Installing Pipe Cap-Storage-Delivery Inspection-Transshipment and Delivery
ERW STEEL PIPE production flow

Material preparation-Uncoiling , Flattening , Shearing and Butt Welding-Loop Storing-Forming system-Welding-Post-weld heat treatment (PWHT)-Air cooling water-Online UT test-Sizing and straightening-Cutting length-On-demand water pressure test-Final product inspection
Certifications

API 2B

API 5L

GOST

ISO 9001

EN 10219

EN 10210
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