Knowledge

SS seamless pipes do not have any weld seam (not easy to subject to corrosion, erosion and, general failure) compared to SS Welded ERW pipes, while cost per ton is higher.

Learn about the 3 types of steel pipes used in the petrochemical industry: seamless, ERW (electric resistance welding), and LSAW (longitudinal submerged arc welding).

ASME B36.10/36.19 NPS to DN Conversion Chart, NPS (Nominal Pipe Size),DN (Normal Diameter)

Pipe Tolerances Specified by ASME B36.10/36.19, pipes diameter tolerance, pipes thickness tolerance, pipes length tolerance, pipes weight tolerance, pipes quantity tolerance.

ASME B36.19 Pipe Schedule Size Chart

ASME B36.10 Pipe Schedule Size Chart

External pipe coating is pipes may be coated externally to be protected from corrosion, erosion and possible mechanical stress. 3LPE coated pipes are the most common choice.

Common ASTM and EN/DIN Stainless Steel, Nickel Alloy, Alloy Steel, Carbon Steel Pipe Specifications

ASTM A312 SS Pipe Finishing include Polishing, Cuttings, Beveling, Threading, Pipe Honing & Turning, Heat treating & Annealing, and Positive Material Identification (PMI) Testing.

ASTM A312 standard stainless steel pipes dimensions are set by the ANSI ASME B36.19 specification.

SS 254SMO is a higher alloyed, more corrosion-resistant, and stronger stainless steel grade than stainless steel 316. While 254SMO 6Mo price is generally more expensive than 316.

ASME SB 443 alloy 625 sheet adds niobium and tantalum, providing it excellent strength and toughness properties. The high nickel content provides excellent corrosion resistance pro