api 5l x70 psl2 steel line pipe

api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe

Description:                                                                               

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Standard: API SPEC 5L, GB/T9711

Technical:  SSAW, LSAW, ERW,SMLS

Grade: L245, L290, L360, L418, L480, GR B, X42, X46, X56, X60, X65, X70, X80 and other steel grade

Outer Diameter: 10.3mm - 2032mm

Wall Thickness: 1.7mm - 39.7mm

Length: 3m - 13 meter as your requirement

Surface Finishes: Bare, Oiled, Mill Varnish, Galv, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap.

Further process:  Beveling, Threading, Slotting, Cut-to-length, Bends, Quench and Temper, Fabrication, Double-jointing and On-site

Test: X-ray, UT, magnetic particle, inspection, hydrostatic test.

Usage: oil and gas industry, gas, water and oil transportation

Overview: API 5L-2011(line pipe specification), the american petroleum institute and published around the world, line pipe out of ground is to oil, gas, water, transported to the oil and gas industry enterprises through pipeline. line pipe including seamless pipe and welded pipe ends flat end with threaded end and socket end, their connections to end welding, coupling connections, socket connections, the pipeline are mainly made of  L245, L290, L360, L418, L480, GR B, X42, X46, X56, X60, X65, X70, X80 and other steel grade of material.

Chemical Composition:                                                             

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Mechanical properties:                                                              

api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe

Tempered:                                                                                 

api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe

According to GB/T9711 different line pipe performance requirements, according to the different tempering temperature tempering can be divided into the following categories:

1.tempering (150-250 degrees)

the resulting low temperature tempering is tempered martensite. its purpose is to maintain in the hardened steel of high hardnedd and high wear resistance under the premise of reducing the stress hardening and brittleness to avoid premature damage or chipping when used. it is mainly used for a variety of high-carbon of cutting tools, measuring tools, GB/T9711 line pipe and other pieces of rolling bearings as well as carburizing, tempering hardness is generally HRC58-64

2.tempering (250-500 degrees)

tempering income is tempered troostite, the aim is to obtain a high yield strength, high toughness and the elastic limit. therefore, it is mainly used for a varisty GB/T9711 line pipe and hot die processing, tempering hardness is generally HRC35-50.

3.tempering (500-650 degrees)

the resulting high temperature tempering is tempered sorbite, admiral quenching and tempering habit of combining heat treatment called quenching, which aims to get the strength, hardness and ductility, toughness are better mechanical properties, therefore, widely used in automotive, GB/T9711.1 line pipe, machine tools and other important structural parts such as connecting rods, bolts, gears and shafts, after tempering hardness is generally HB200-330.

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api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe

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api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe     

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api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe

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api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe

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api 5l x52 seamless line pipe price api 5l x70 psl2 steel line pipe