Method of manufacturing seamless steel tubes
Method of manufacturing seamless steel tubes According to different production methods, it can be divided into hot rolled pipe, cold rolled…
Production technology of seamless steel tube
Production technology of seamless steel tube It is roughly divided into oblique rolling method (Mannesman method) and extrusion method. The cross…
ANSI B36.19 and ANSI B36.10 Standard Data Chart Chowing
ANSI B36.19 standard included stainless steel seamless steel pipes and welded steel pipes. but ANSI B36.10 standard included seamless steel pipes…
New China’s “first”: the first seamless steel pipe plant
Yan’an Iron and Steel Seamless Pipe Factory is the first modern factory to produce seamless steel pipes in China….
casing sizes and grades
Casing Pipe, Drill Pipe Sizes: Out Diameter: 1.315″- 20″Wall Thickness: 0.133″-0.500″Length:R1(group1),R2(group2),R3(group3) Materials & Grades: Casing: J55, K55, N80, L80, P110 Drill…
Four, annealing
1. What is annealing? Annealing is a metal heat treatment process in which the metal is slowly heated to a certain…
Third, normalizing
1. What is normalizing? Normalizing is a heat treatment that improves the toughness of steel.After heating the steel components to 30…
The Tempering
1. What is tempering? Tempering after quenching metal timber or parts of heating to a certain temperature, heat preservation, after a…
Error! Quenching, tempering, normalizing, annealing
A, quenching What is quenching? Steel quenching is one of the steel is heated to a critical temperature Ac3 (hypoeutectoid steel)…
“Two high, three low “2018 spring rebar Supply tight balance pattern will still bring opportunity market
“Two high, three low “2018 spring rebar Supply tight balance pattern will still bring opportunity market “Two high, three low “2018…
Square Tube Steel Export To Vietnam
Square Tube Steel Export To Vietnam Square Tube Steel Export To Vietnam Our Export and Supply Range for Industries and Companies in…