We certify our products based on the ASTM (American Society for Testing and Materials) regulations; we guarantee their dimensions and properties.

For raw materials

  • Hot rolling: ASTM A1011
  • Cold rolling: ASTM A1008
  • Galvanizing: ASTM A653

For tube manufacturing

  • ASTM A500
  • ASTM A513
  • ASTM A787

* : Typical Values. 
1a: A.W.H.R. “as welded” from hot-rolled steel (with mill scale).
1b: A.W.P.O. “as welded” from hot-rolled pickled and oiled steel (mill scale removed).
2: A.W.C.R. “as welded” from cold-rolled steel.

International Standards

Our products can meet other international standards upon request of our costumers


  • EN 10219
  • EN 10305-3
  • DIN EN 10210-1/2


  • JIS G 3466
  • GB/T 6728
  • GB/T 3094


  • AS/NZS 1163