China wholesale Stk400 Square Steel Pipe - ASTM A53 Black Painted Welded Steel Pipe – Youfa Detail:
Product | ASTM A53 Black Painted Welded Steel Pipe |
Material | Carbon Steel |
Grade | Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade AQ345 = S355JR / A500 Grade B Grade C |
Standard | GB/T3091, GB/T13793API 5L/ASTM A53, A500, A36, ASTM A795 |
Specifications | ASTM A53 A500 sch10 – sch80 |
Surface | Painted Black |
Ends | Plain ends |
Beveled ends |
Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL /FM, ISO9001/18001, FPC certificates.
Packing and Delivery:
Packing Details : in hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles.
Delivery Details : Depending on the QTY, normally one month.
Product detail pictures:


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We insist over the principle of development of 'High top quality, Performance, Sincerity and Down-to-earth working approach' to supply you with exceptional services of processing for China wholesale Stk400 Square Steel Pipe - ASTM A53 Black Painted Welded Steel Pipe – Youfa, The product will supply to all over the world, such as: Latvia, Canada, Serbia, Customer satisfaction is our first goal. Our mission is to pursue the superlative quality, making continual progress. We sincerely welcome you to make progress hand in hand with us, and construct a prosperous future together.

We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.
