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Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube

China Hebei Huayang Steel Pipe Co., Ltd. certification
China Hebei Huayang Steel Pipe Co., Ltd. certification
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Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube

Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube
Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube

Large Image :  Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube

Product Details:
Place of Origin: Cangzhou China
Certification: API/CE/ISO9001
Model Number: Outer Diameter: 114.3mm-610mm (4"-24") Wall Thickness: 3.5mm-22mm Length: 3mtr-18mtr
Payment & Shipping Terms:
Minimum Order Quantity: 20~200 TONS
Price: Negotiation
Packaging Details: Bare Pipe or as customers'requirement
Delivery Time: 30Days
Payment Terms: T/T, L/C
Supply Ability: 1000,000Tons per year
Detailed Product Description
Wall Thickness: 3.5mm-22mm Length: 3mtr-17.1mtr
Outer Diameter: 114.3mm-610mm (4"-24") Coating: AWWA C210,AWWA C213
Steel Grade: GR.A, GR.B,X70 Ect Standard: API 5L,ASTM A53
Alloy Or Not: Non-alloy Technique: ERW
Section Shape: Round Usage: Oil And Gas Transmission
High Light:

GB T 9711 ERW Steel Tube


GRA Black ERW Steel Tube


API 5L Black ERW Tube

Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube


GB / T9711 ERW Black Steel Pipe use for Petroleum And Natural Gas Industries

ERW (Electric Resistance Welded), HFI (High Frequency Induction), HFW (High-Frequency Welding)

ERW(Electric Resistance Welding) pipe used for transmission of oil, natural gas and other fluid medium which is suitable for high or low pressure purpose. Black steel pipe is made of steel that has not been galvanized. Its name comes from the scaly, dark-colored iron oxide coating on its surface. It's used in applications that don't require galvanized steel. ERW black steel pipe which is the black steel pipes which produced in ERW type.


Special design available according to requirement,anti-corrosion and high-temperature resistant with black painting,all the production process are made under the ISO9001:2000 strictly.

We are specialize in the supply of ERW steel pipes.We supply steel as the manufacturer’s price to meet customer's needs with satisfied services and most competitive quality.

In case you have any other questions,please e-mail us,we will be very glad to reply you as soon as possible,we are wishing to establish the business relations with you.

Our company owns the modern equipments and completed examination methods. meanwhile, advanced inspection devices service us with good effects-X beam crack detection, the ultrasonic pressure testing machine, the tensile testing machine, the physics and chemistry laboratories and the integrated measuring system. thus, the production of goods can be guaranteed compliance to standard and satisfying to customers' requirement.

Quality Standards:

API 5L Line Pipe for oil and gas
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless 

GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines
GB/T3091 Welded steel pipe for low pressure liquid delivery and construction
BS 1387 Steel Tubes for use for Water, Gas, Air and Steam


Supply ability: 50,000 Metric Tons/Month

Delivery time: 7 day at fastest, based on total quantity or as customers’ requirements

Loading port: Tianjin(Xingang) Port 

Payment Term: T/T, L/C at sight or negotiate

Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.

Specification OD 114.3mm-610mm (4"-24")
WT 3.5mm-22mm
Length 3mtr-18mtr

Lightly oiled, Hot dip galvanized, Electro galvanized, Black painted, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)


End Plain/square ends (straight cut, saw cut, and torch cut), or Beveled ends, or Threaded ends, or Grooved ends.
Steel grades

GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555


Coating Standard

ISO 21809: Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems
DIN 30670: Polyethylene coatings of steel pipes and fittings

AWWA C210: Liquid-Epoxy Coatings and Linings for Steel Water Pipe and Fittings
AWWA C213: Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines



Our Advantage:

Huayang specialized in manufacturing welded carbon steel pipes for 14 years. The annual output is around 1,000,000 tons. Our products have been exported to 40 countries and regions till now, such as Canada, Hong Kong, Vietnam, Bangladesh, The U.A.E, America, Spain, Italy, Netherlands, Kuwait, Saudi Arabia etc. So any inquiry or special demands will get fast and most professional reply.

Natural Gas Industries GB T 9711 GRA Black ERW Steel Tube 0

Contact Details
Hebei Huayang Steel Pipe Co., Ltd.

Contact Person: Mike Han

Tel: +8615631715767

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