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ASTM A312 Stainless Steel Seamless Tube For Achemical Engineering
Specifications:
Annealing is a kind of metal heat treatment process, which refers to the metal slow heating to a certain temperature, to maintain sufficient time, and then to cool down. The aim is to reduce the hardness, improve the cutting process, eliminate the residual stress, stable size, reduce the deformation and the crack tendency; refine the grain, adjust the structure, and eliminate the tissue defect. To be exact, annealing is a heat treatment process for materials, including metal materials and nonmetal materials. And the purpose of the new material is also different from the traditional metal annealing.
Packing | Woven bags | About 2ton for each bundle |
Dimension | OD Size | 1/8 - 32 inch |
Thickness | XS STD sch5 sch10 sch20 sch30 sch40 sch80 sch160 | |
Length | 5 - 5.8m, 6m,double random length | |
Certificate | ISO/SGS/BV/Lloyd/ABS/CCS/RINA/GL/DNV | |
Description:
Purpose
(1) reduce the hardness and improve the cutting process.
(2) elimination of residual stresses, stable dimensions, reduced deformation and crack tendency;
(3) refine the grain, adjust the organization, and eliminate the organization defect.
(4) the organization and composition of the material, improving the material properties or preparing for the subsequent heat treatment.
In production, the application of annealing process is very extensive. According to the different purposes of the workpiece, the annealing process specifications have many kinds, such as complete annealing, ball annealing, and stress annealing.
Tube Dimension and tolerance
tolerance class | OD tolerance |
D1 | ±1.5%,min±0.75 mm |
D2 | ±1.0%.min±0.50 mm |
D3 | ±0.75%．min±0.30 mm |
D4 | ±0.50%.min±0.10 mm |
The mechanical properties of steel is an important index to ensure the final use of steel (mechanical properties), it depends on the chemical composition and heat treatment system. In the steel pipe standard, according to the different requirements, the tensile properties (tensile strength, yield strength, yield strength, elongation) and hardness, toughness index, as well as high and low temperature performance, etc..
Applications:
Used in industries as chemical engineering, petroleum, medicine, food, energy, nuclear power, aerospace,
environmental protection, boiler, gas, war industry, machinery, ship building and so on.
Competitive Advantage:
Our factory is near to raw material market and high-speed way, the producing cost is low.
Our factory have long history for producing stainless steel seamless tube,both producing and testing
machine is advanced and perfect.
Our factory was certificated by BV/ISO/LR/RINA/CCS/GL/ABS/DNV, which can improve the quality.
We participated in many famous projects with our tubes.
Stainless Steel Seamless Tube
