Square Tube 20X20 mm Steel Galvanized Square Hollow Tube Gi Pipe for Greenhouse Building

• Customization: Available
• Type: Welded
• Technique: Hot Rolled
• Model NO.: a53 a106
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Steel Pipe Type: Welded Steel Pipe
• Stock Size: Od12mm- Od800mm
• Stock Size MOQ: 1 PC
• Stock Size Delivery Time: 1 Day
• New Production Size MOQ: 15 Tons
• New Production Deliveyr Time: 7 Days
• Grades: St37. St52, SAE1020, Q345b, Q195, Q235
• Packing: in Bundles with Tarpaulin Covering
• Payment Terms: 30% T/T in Advance, The Balance by Email Copy Bl
• Trade Terms: EXW, Fob, CFR, CIF
• Fabrication Type: Cutting
• Fabrication Type 2: Bending
• Fabrication Type 3: Welding
• Fabrication Type 4: Machining
• Loading Seaport: Tianjin Port, China
• Transport Package: in Bundles
• Specification: OD63*ID35MM
• Trademark: TJEMERSON
• Origin: Tianjin, China
• HS Code: 7304399000
• Production Capacity: 2000tons /Month

Product Description

1.    ERW carbon steel pipe
2.    Main application: Scaffolding pipe, Structure pipe, Fence/Door pipe, Furniture, Low pressure fluid pipe for water oil or gas, Boiler pipe
3.    Material: SPHC, Q195,Q215,Q235,Q345,SAE1010,SAE1020,API Standard material, ASTM A53 A,B
1.    Carbon steel pipe
2.    Black carbon steel pipe
3.    ERW carbon steel pipe
Minimum order: 10MT
Price: 560USD/MT - 760USD/MT
Packing Details: Loose, plastic package, black strips, G.I strips
Supplying Ability: 2000MT-10000MT per Month
ERW steel pipe
ERW steel pipe is one of the main pipe structural material in construction and liquid transfer steel material. It is properly used in bridge building, underground transfer assemble structure ,agriculture, chemical liquid transfer, oil and gas transfer and so on, It will be manufactured by electricity resistance welding. The outside surface can be treated by galvanizing, painting, PE coating, PP coating, HDPE coating and so on, The main advantage is welding beam can be very smooth. It is very good to do the transfer and liquid job.  Normal usage validity time will be around 50-80 years. Standard can be API, ASTM, JIS etc.

ERW Steel pipe
Outer Diameter	20mm-610mm
Wall Thickness	0.5mm-16mm
Length	250mm-12000mm
Material	SPHC, Q195,Q215,Q235,Q345,SAE1010,SAE1020, API Standard material, ASTM A53 A,B
Surface	galvanizing, painting, PE coating, PP coating, HDPE coating
Standard	GB/T3091, BS1387-1987, ASTM A53, DIN2440, EN39-2001
Certification	ISO9000
Technique	ERW
Packaging	Loose, plastic package, black strips, G.I strips

Production Process
1: Inspection Raw material in site
2: Open Coil and Joined welding
3: Continuous arc-welding
4: Cutting
5: End and welding inspection
6: Mark Packing and Trucking
ERW pipes means Electric Resistance Welded Pipes. ERW steel pipes and tubes are used. ERW steel pipes and tubes are used in various engineering purposes, fencing, scaffolding, line pipes etc. ERW steel pipes and tube are available in various qualities, wall thicknesses, and diameters of the finished pipes.
Based on the customers requirements we can manufacture erw pipes and tubes of different size and shape. We have a very large production capacity of erw pipes and tubes. ERW pipes and tubes are used in various engineering purposes, fencing, scaffolding, line pipes etc. ERW pipe is available in lengths from single random to 120 feet depending on mill capability. ERW pipe is available with square ends or beveled for welding, threaded and coupled and grooved. Surface finish are available in black or bare, or with protective coatings.
For pipes or tubes size 4 inch (10.2mm) OD and below, strip is fed into a set of forming rolls which consists of horizontal and vertical rollers so placed as to gradually from the flat strip in to a tube which is then allowed to pass the welding electrodes. The electrodes are copper disks connected to the secondary of a revolving transformer assembly.
      Has strived to establish a highly efficient and stable workers workforce and explored an effective high-quality management system for Welded steel pipe, The product will supply to all over the world, such as: Tunisia, Qatar, Colombia, Since always, we adhering to the "open and fair, share to get, the pursuit of excellence, and creation of value"values, adhere to the"integrity and efficient, trade-oriented, best way , best valve" business philosophy. Together with our all over the world have branches and partners to develop new business areas, maximum common values. We sincerely welcome and together we share in global resources, opening up new career together with the chapter.
     We constantly continually give you essentially the most conscientious client provider, plus the widest variety of designs and styles with finest materials. These initiatives include the availability of customized designs with speed and dispatch for ERW steel pipe, The product will supply to all over the world, such as: Frankfurt, Brunei, Somalia, Qualified R&D engineer might be there for your consultation service and we will try our best to meet your requirements. So you should feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we are going to surely present you with the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we'll make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we're here to welcome your inquiries for any of our merchandise and service

Type	Outer diameter(inner diameter)	Allowed tolerance	Wall thickness
Outer diameter	≥16mm-250mm	-0.8 - +2.4mm	0.8mm- 50mm
	>260mm-480mm	-0.8 - +3.2mm
	>490mm-850mm	-0.8 - +4.0mm
	>863.6mm	-0.8 - +4.8mm
Inner diameter	All size

Seamless Steel pipe grades

Descriptions	Grades
Structural pipe	20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2 SAE1018, SAE1020, SAE1518, SAE1045.
Liquid pipe	20# q295b-e, q345b-e
High pressure boiler tube	20G 15MnG 20MnG 15CrMoG, 12Cr1MoVG St35.8, sa106b, sa106c, sa210a, sa210c, A333P2, A333P11, A33P12, A333P22, A33P36, A333P91, A333P92, A335T2, A335T11, A335T12, A335T22, A335T91, A335T23, A335T9
Pipeline	API SPEC 5L, X42, X52, X60, X65,X70,X80 ASTMA53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245
Alloy pipe	4140, 42CrMo, 32CrMo, 15CrMo,
Packing	Black paint, Varnish painting, Tarpaulin packing
End	Common round end, beveled.
Processing	Galvanizing; cutting; making thread outside the pipe; Machining.
outer diameter	16mm- 800mm
wall thickness	4mm- 80mm

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company introduction:
Tianjin Emerson Commercial and Trade co., Ltd located in Tianjin the largest seaport in north of China, has more than 10 years of experience in Iron and Steel materials, has large stock for steel raw materials. Tianjin Emerson products category: hot rolled steel plate and steel sheet, medium thick steel plate, stainless steel sheet and plate, galvanized steel sheet, and checkered steel sheet and plate; hot rolled steel coils, cold rolled steel coil, galvanized steel coil and stainless steel coils; seamless steel pipe, welded steel pipe, hollow bar, galvanized steel pipe, square pipe, rectangular steel pipe, and stainless steel pipes; steel bar, hot rolled steel bar, forged bar, rebar, deformed bar and other steel profiles. Except the steel raw materials, Tianjin Emerson can make steel fabrication and processing on steel raw materials: sheet metal fabrication, steel sheet laser cutting, steel sheet CNC flame cutting, steel sheet waterjet cutting, steel products welding and machining; make steel structure, and can make all types of steel parts or equipment by drawings. Emerson supplies good service for customer, good quality products, fast delivery, and good after-sale service, Tianjin Emerson hopes to build good cooperation with everyone interested.
We are a dynamic and dependable company. You can count on us to supply the right grade and the right size at the right price - delivered right on time, every time. Our innovative approach means you get the benefit of state-of-the-art technology coupled with personal professional service. The result is a business partner striving to meet your needs to help your business grow.
WHY CHOOSE US:
good quality!  fast delivery time!  good after-sale service
looking forward to your kind contact