Pipa Baja ERW

Pabrik pipa saluran gas API 5L pipa baja karbon baja erw

carbon steel ERW pipe Factory

Pipa Baja ERW (Pipa Las Tahan Listrik), Pipa ERW Baja Karbon

Electric Resistance Welded (ERW) pipe is made from high-quality carbon steel coils, cold-formed into a cylindrical shape with a longitudinal weld parallel to the pipe.

Uniasen is a trusted wholesale ERW pipe supplier in China. Our ERW pipes are manufactured using advanced automated welding lines and are available in diameters up to 24 inches (610 mm) to meet different industry needs. The coil width matches the circumference of the pipe, ensuring performance for the transportation of oil, gas, and various liquids or steam.

Our pipes range in size from 1/2 inch to 24 inches, suitable for welding, threading, grooved, and bending, providing versatility for projects around the world

ERW pipes Specifications

Nama ERW (Las Tahan Listrik)
Standar API 5L, API 5CT, ASTM A53, ASTM A252, ASTM A500, AS1163, ASTM A795, ASTM A135, BS1139, BS1387, EN 10217, EN 10219, EN39, JIS G3444, JIS G3452
Kelas GR.A, GR.B, GR.1-GR.3, X42-X70, J55, K55, Q195-Q345, C250, C350, C250L0, STK500, C350L0 P1957121-P2657R2, S235JOH-S355JOH, S235GT
Jenis Line Pipe, Casing Pipe, Structure Pipe, Scaffolding, Pilling Pipe, Conduit Pipe, Sprinkler Pipe, Fluid Transmission Pipe, Torque Tube, Roller Tube
Ukuran Out diameter 1/2″ ~ 24″(21.3mm ~ 610mm, DN15~ DN600)
Thickness 2mm ~ 17.48mm(SCH 5S ~SCH XXS)
3m-18m 3m-18m
Pelapisan Permukaan Pernis, Meminyaki, Galvanisasi Celup Panas
Jenis Akhir Polos, Miring, Berulir, Beralur
Metode Gabungan Pemasangan, Flensa, Kopling, Penjepit, Bahu Pipa, Pengelasan
Pemesinan Pipa Pengelasan, Pembengkokan, Pengeboran Lubang, Pelubangan, Pelubangan, Swaging, Meruncing, Pembakaran, Perluasan

ERW pipe Size Chart​

NOMINAL PIPE SIZE OD KETEBALAN DINDING NOMINAL
DN INCH MM SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80
15 1/2 21.3 2.11 2.41 2.77 2.77 3.73 3.73
20 3/4 26.7 2.11 2.41 2.87 2.87 3.91 3.91
25 1 33.4 2.77 2.9 3.38 3.38 4.55 4.55
32 1.1/4 42.2 2.77 2.97 3.56 3.56 4.85 4.85
40 1.1/2 48.3 2.77 3.18 3.68 3.68 5.08 5.08
50 2 60.3 2.77 3.18 3.91 3.91 5.54 5.54
65 2.1/2 73 3.05 4.78 5.16 5.16 7.01 7.01
80 3 88.9 3.05 4.78 5.49 5.49 7.62 7.62
90 3.1/2 101.6 3.05 4.78 5.74 5.74 8.08 8.08
100 4 114.3 3.05 4.78 6.02 6.02 8.56 8.56
125 5 141.3 3.4 6.55 6.55 9.53 9.53
150 6 168.3 3.4 7.11 7.11 10.97 10.97
200 8 219.1 3.76 6.35 7.04 8.18 8.18 10.31 12.7 12.7
250 10 273.1 4.19 6.35 7.8 9.27 9.27 12.7 12.7 15.09
300 12 323.9 4.57 6.35 8.38 9.53 10.31 14.27 12.7 17.48
350 14 355.5 6.35 7.92 9.53 9.53 11.13 15.09 12.7 19.05
400 16 406.4 6.35 7.92 9.53 9.53 12.7 16.66 12.7 21.44
450 18 457.2 6.35 7.92 11.13 9.53 14.27 19.05 12.7 23.83
500 20 508 6.35 9.53 12.7 9.53 15.09 20.62 12.7 26.19
550 22 553.8 6.35 9.53 12.7 9.53 22.23 12.7 28.58
600 24 609.6 6.35 9.53 14.27 9.53 17.48 24.61 12.7 30.96

Applications of ERW Pipe

Pipa ERW, pilihan yang dapat diandalkan, populer karena harganya yang terjangkau dalam banyak aplikasi. Berikut ini adalah aplikasi struktural umum dari pipa baja ERW:

Building StructureERW steel pipes are commonly used in building structures, support structures and other building elements. Such as bridges, supports, columns, stairs, etc.

Pipeline SystemERW steel pipes are widely used in oil and gas pipelines, water pipelines, sewer systems and other transportation systems. In these systems, ERW steel pipe provides sealing, corrosion resistance and pressure resistance.

EquipmentERW steel pipes make structures and parts for different machines. Its customizability and high strength make it a commonly used material in machine manufacturing.

Car StructureAutomobile manufacturers use ERW steel pipes in chassis, frames, and other structural components. Their light weight, high strength , and workability make them ideal for automotive manufacturing.

Power Transmission LinesERW steel pipes are used in structures that support power transmission lines. Because it conducts electricity well and resists damage from the environment, it is used in the power industry.

ERW Pipe Manufacturing Process

ERW steel pipes are manufactured from high-quality steel coils. The process starts with uncoiling the coils, followed by feeding them into a mill where the sheet edges are trimmed and rolled into a cylindrical shell. High-frequency currents are then applied to weld the edges. The formed pipes undergo additional rolling to achieve the desired dimensions.

Proses pembuatan Pipa ERW-pabrik pipa erw baja karbon Cina

Apa yang dimaksud dengan Pipa ERW?

ERW steel pipe is a type of steel pipe called “Electric Resistance Welded Pipe.” It is made through resistance welding. This process involves crimping a steel plate into a tube and then welding both sides of the tube. This welds the edges together to make a seamless weld.ERW pipe mainly transports oil, natural gas, and other vaporous-liquid objects. ERW steel tubes have been developed into many specifications to meet different high- and low-pressure operation needs.

Dapatkan Penawaran Gratis
Pipa ERW_Apa itu Pipa ERW

Perbedaan antara ERW dan Pipa Seamless

Pipa ERW dan Pipa Seamless adalah dua jenis pipa baja. Keduanya memiliki perbedaan yang jelas dalam proses pembuatan, penampilan, dan aspek lainnya. Berikut ini adalah perbedaan utama di antara keduanya:

Pipa ERW

  • Lebih murah dibandingkan dengan pipa baja tanpa sambungan
  • Sambungan las terdapat pada penampang melintangnya.
  • Terbuat dari gulungan baja
  • Diameter luar bervariasi antara 2-3/8 Inci dan 24 inci
  • Digunakan untuk aplikasi tekanan rendah/menengah
  • Toleransi ketebalan serta toleransi panjang pipa-pipa ini cukup tepat

Pipa Seamless

  • Mahal
  • Tidak ada sambungan las
  • Bahan bakunya adalah billet bulat padat.
  • Diameter luar bervariasi antara 1/8 Inci dan 26 inci
  • Digunakan untuk aplikasi tekanan tinggi
  • Toleransi ketebalan serta toleransi panjangnya bagus.

Pertanyaan Umum

Pipa baja ERW dibuat dengan memanaskan pelat atau strip logam dan mengelasnya menjadi satu. Menggunakan teknologi pengelasan resistansi, produksi yang efisien dan berbagai spesifikasi. Ini digunakan dalam konstruksi, transportasi minyak dan gas, mesin, mobil, pipa ledeng, jembatan, dll. Ini secara luas disukai karena biayanya yang rendah dan efisiensinya yang tinggi.

EFW (Electric Fusion Welding) and ERW (Electric Resistance Welding) are two common welding methods. They are mainly used in making pipes. Their main differences lie in the welding method and scope of application.EFW (Electric Fusion Welding):

  • Metode pengelasan: Bahan dasar dipanaskan hingga meleleh dengan pemanasan busur, kemudian diisi dengan kawat las.
  • Lingkup aplikasi: Biasanya digunakan untuk membuat pipa dan alat kelengkapan dengan diameter yang lebih besar dan dinding yang lebih tebal.
  • Bahan yang Berlaku: Cocok untuk berbagai jenis paduan dan baja.

ERW (Pengelasan Hambatan Listrik):

  • Metode pengelasan: Gunakan panas yang dihasilkan oleh resistansi untuk memanaskan tepi bahan dasar hingga meleleh, lalu tekan untuk membentuk lasan.
  • Lingkup aplikasi: Cocok untuk pipa berdiameter kecil, berdinding tipis dan cocok untuk produksi massal.
  • Bahan yang berlaku: Terutama digunakan untuk baja karbon dan baja paduan rendah.

Common points:All are suitable for pipe manufacturing and used to transport liquids and gases.Efficient production to meet large-scale production needs.Summary of differences:

  • Ukuran dan Ketebalan:

EFW cocok untuk pipa berdiameter besar dan berdinding tebal, sedangkan ERW lebih cocok untuk pipa berdiameter kecil dan berdinding tipis.

  • Biaya:

Due to differences in production processes and uses, ERW is generally less expensive than EFW.The method chosen usually depends on project needs and cost.

A Carbon ERW Steel Pipe is made from carbon steel using the efficient ERW welding process. Carbon steel is the primary material, renowned for its strength. In ERW, the steel strip or coil edges are heated until they melt using electricity. When pressed together, this creates a joint. This method is cost-effective and ideal for mass production. The advantages include efficient production, versatility in sizes, and economic feasibility. 

UNIASEN usually has 20,000 tons of steel pipes in stock.We will deliver the product to the shipping port within 7 days if there is sufficient inventory.If there is no stock, we usually complete the production of the product within 30 days. Hubungi kami untuk waktu pengiriman.

Kami menawarkan berbagai diameter dari 1/2 inci hingga 24 inci, dan ketebalan dinding dapat disesuaikan dengan kebutuhan pelanggan.

Produk kami memenuhi standar kualitas seperti ASTM A53, API 5L dan dilengkapi dengan laporan pemeriksaan kualitas yang relevan.

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