Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of api psl1 l245n carbon round pipe in China. Welcome to buy discount api psl1 l245n carbon round pipe made in China here from our factory. Quality products and low price are available.
Product introduction
ERW steel pipe, the full name of resistance welded steel pipe, is a kind of metal pipe made of high frequency current heating steel strip joints and resistance welding. This kind of steel pipe has good strength, toughness and corrosion resistance, and is widely used in oil, natural gas, chemical industry, electric power and other fields. The outer diameter of Huayang's ERW steel pipe ranges from 76 to 660 mm, and the wall thickness ranges from 2.5 mm to 20 mm. This variety of sizes enables it to meet the needs of different industries and application scenarios.
The common steel grades of ERW steel pipes include Q235, Q355, L245, L290, X42, X46, X60, X80, etc. The selection of these steel grades depends on different application requirements and environmental conditions. For example, the Q235 and Q355 are commonly used in general building and structural applications, while the X42 to X80 series is primarily used in oil and gas transmission pipelines with higher strength and corrosion resistance.
What is ERW Steel Pipe
ERW Steel Pipe is a steel pipe produced by resistance welding technology. Its full name is Electric Resistance Welding, or ERW. This kind of steel pipe is characterized by rolling the steel strip into a cylindrical shape, melting and welding the edges together by means of resistance heating to form a continuous weld.
application area
ERW steel pipes are widely used in many fields because of their high cost effectiveness and high production efficiency. The main applications include oil and gas pipelines, building structures, machinery manufacturing, and various fluid delivery systems. They are capable of operating under high and low pressure conditions to meet different industrial requirements.
Advantages and characteristics
ERW steel pipes have some significant advantages and characteristics. They usually have good mechanical strength and sealing properties because the weld is formed by melting through the base material of the steel strip body. In addition, the production process of ERW steel pipes is relatively environmentally friendly, with low energy consumption and high material utilization. They can also be galvanized or other anti-corrosion treatment to enhance corrosion resistance and extend service life.
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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