Thank you very much for your sincere service. The quality of your products has always been very good. We are very relieved and hope to have more cooperation in the future.
    Thank you for your products. Your products are of good quality and considerate service. We are very confident and willing to cooperate with you. We hope there will be opportunities for cooperation with other products in the future.
Contact Person : Anne
Phone Number : +8618963570880
Whatsapp : +8618963570880

0.4mm to 8mm Wall Thickness 4 Inch ERW Black Welded Steel Pipes API 5L X60 ASTM A179

Place of Origin CHINA
Brand Name Tongmao
Certification ISO/SGS
Model Number Welded Steel Pipes
Minimum Order Quantity 3 TONS
Price Negotiable
Packaging Details Sea Worth Packaging or Client's request.
Delivery Time 5-8 Working Days
Payment Terms L/C, T/T, Western Union, MoneyGram
Supply Ability 500 TONS - 1 Month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Name Welded Steel Pipe Standard ASTM, JIS, AISI, EN, GB, API, DIN
Grade 316L, S235JR, S355JR, ST37, ST42, ST52,A106/53, GR.B A178 A/C/D, API 5LGRB, X42, X52, X60, X70 Special Use Wear Resistant Steel, High-strength Steel Plate, Abrasion Resistant Steel, Welding Wear Resistant Composite Plate, Other
Wall Thickness 0.4mm ~ 8mm Finish Oil
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WT 150mm black welded steel pipe


ASTM A179 erw black steel pipe


API 5L X60 4 inch black steel pipe

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Product Description

Factory Direct   Welded Steel Pipe 

ERW Welded carbon steel pipe tube A36 Q235 LSAW SSAW steel tube for construction


Welded pipe is a round pipe welded by steel plate, the technology have ERW ,LSAW , SSAW. ERW represents resistance welding. Resistance welding has the characteristics of high production efficiency, low cost, material saving and easy automation. Therefore, it is widely used in aviation, aerospace, energy, electronics, automobile, light industry and other industrial departments.

Product description


Commodity Name Welded steel pipe
Standard ASTM A178/A178M, A179, A106/53
GB/T 3091, 9711,5037
Material S235JR,S355JR, ST37,ST42,ST52,A106/53 GR.B
A178 A/C/D
API 5LGRB, X42,X52,X60,X70
Outer Diameter 6-2100mm
Wall Thickness 0.4-150mm
Length 1-12m or as your requirement
Tolerance OD±1% W±T12.5%
Packing Bundle packing
Beveled end or pained
Marking as customers’ request
Blacking painted on the pipes
Plastic caps at ends
Surface Treatment Bared
Black Painted
Deep processing oiled, painted, galvanized, powder coating, shrink head, pressure groove, welding head, punching, threaded with coupling and plastic cap
Inspection With Hydraulic Testing, Eddy Current, Infrared Test
Application Construction,machine structure pipe, Agriculture equipment pipe,Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc.
Shipping FCL, LFL ,BY BULK


Detailed photos

ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 0ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 1

Product parameters

ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 2ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 3ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 4

Packing and shipping

ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 5ERW Welded Carbon Steel Pipe Tube A36 Q235 LSAW SSAW Steel Tube For Construction 6





SHANDONG TONGMAO SPECIAL STEEL CO.,LTD is reputed at supplying Stainless Steel Pipe, Carbon Steel, Seamless Pipe,Alloy Steel Pipe, Hot-Rolled/Cold-Rolled Steel Pipe, Galvanized Steel Pipe, Welded Steel Pipe, Precision Steel Pipe, also supply Steel Plate, Steel Coil and Lead Sheet etc

Our Company combined production, trade, the development of new products and services together, is one of the provincial large-scale iron and steel enterprises. Factory products standards are qualified to meet ISO/GB/ASTM/EN/BS/JIS etc.
The company is in the long-term development process, we are in cooperation with Baosteel Group, Tianjin Steel Group, Baotou Steel Group, Panzhihua Iron and Steel Group, Taiyuan Iron and Steel Group, Anshan Iron and steel Ling, Daye Steel Group and other well-known domestic mills,and established long-term friendly cooperative relations with not only the domestic groups, but also abroad relations, Assab special steel, Japan's Hitachi, Japan Datong Special and Germany Special Steel, Austria special steel and other well-known International groups.
Our company insists the principle of honesty and trustworthiness, has received trust and support from both the domestic and Internatonal manufacturers.
We will always adhere to the belief of credibility is the life to develop international market,and try our best to be skilled, highly responsible team, through win-win cooperation, to meet the brilliant tomorrow!


How can I contact with your company?
We are always ready to serve you via Email, Wechat or Mobile telephone.

What is your working time?
Monday-Saturday : 8:00AM-17:30PM (Beijing time, GMT+08.00)
We have public holiday during May.1-3, Oct.1-7 and Chinese New Year holiday . For detail,
please see our update holiday notice. During these period, if you have a demand, Please
send me an email.

Do you provide free samples?
Yes, we can provide a free small sample for testing, buyer should bear all the shipping costs.

What is your payment terms?
T/T,L/C,D/A,D/P,Western Union,MoneyGram,Paypal
We are doing the best to match your demand.

What is the lead time?
Usually sample lead time is 7 days after payment has been confirmed.
Normal order is 10-30days,it depends on customers' quantity.
Anyway,we try to offer good-quality products as soon as possible.