Knowledge

Advantages of prefabricated directly buried insulated steel pipe

Directly buried prefabricated insulated pipes are closely combined with steel pipes (working pipes) for transporting media, polyurethane rigid foam (insulation layer), and high-density polyethylene ou

What is petroleum seamless steel pipe

Petroleum seamless steel pipe is a long steel material with a hollow cross-section and no seams around it.

Seamless steel pipe executive standards

Seamless steel pipe materials are divided into: 10, 20, 35, 45, 40Mn2, 45Mn2, 27SiMn, 20Cr, 40Cr, 20CrMo, 35CrMo, 38CrMoA1, 50CrV, 30CrMnSi ASTM A500-98.

What is the difference between API X42 and X52 pipe

The API 5L standard covers grades A25, A, B, and "X" grades such as X42, X46, X52, X56, X60, X65, X70, and X80. The two digits after the "X" indicate the minimum yield strength (in 000 psi) of the pip

The difference between spiral steel pipe and seamless steel pipe

Seamless steel pipes and spiral steel pipes are two common types of steel pipes. They have certain differences in manufacturing processes, performance and application fields.

What is TPEP anti-corrosion steel pipe

TPEP anti-corrosion steel pipe is a new type of anti-corrosion pipe. Its full name is three-layer polyethylene anti-corrosion coating pipe. It has the advantages of corrosion resistance, environmental

The main influence of alloying elements on steel properties

The main influence of alloying elements on steel properties

Line Pipe vs General Steel Pipe: Materials, Standards and Selection

Line pipe and general steel pipe look similar on the rack but are governed by different standards, chemistry limits and testing regimes. This comparison sets out grades, specification levels, manufact

The difference between cast steel and cast iron

Cast Steel Valves Supplier-GNEE The difference between cast steel and cast iron 1. Basic concepts of cast steel and cast iron Cast steel and cast iron are both cast materials, and the main difference