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  • Stainless Steel Series
Stainless Steel Series
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Stainless Steel Series

Pipe、 elbows、 tees、reducers、 caps、 flanges

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  • DESCRIPTION
  • SMLS steel pipe, seamless steel pipe

    Types of seamless steel tubes from our factory

    Types of Uses
    Structure purposes General and mechanical structure
    Liquid services Transportation of oil, gas and other fluids
    Low and medium pressure Manufacture of steam and steam boilers
    Hydraulic pillars service Hydraulic support
    Automatic semi-shaft housing Auto sem-shaft casing (in English)
    Tubertuber Oil and gas transportation
    Tubes and housing Oil and gas transportation
    Drilling tubes Well drilling
    Geological drilling pipes Geological drilling
    Petroleum tubes Furnace tubes, heat exchangers

    Standards and applications

    Standards Degree Class:
    API API 5L Piping for pipeline transport systems
    API 5CT Pipeline and housing for Wells
    API 5DP Drilling tube for well drilling
    ASTM ASTM A53 Used as structural steel or for low pressure pipes
    ASTM A106 Seamless carbon steel tube for high temperature service
    ASTM A335 For high temperature service
    ASTM A213 For Calder, supercalenty seamless austenitic ferriy heat exchange tubes
    ASTM A179 For heat exchanger tubes and low cold steel condensation without welding
    ASTM A192 For seamless carbon steel boiler pipes for high pressure service
    ASTM A210 For seamless carbon steel superheated boiler pipes
    ASTM A333 For seamless steel tubing for low temperature service and other applications with required notch resistance
    ASTM A519 For seamless mechanical tubes of carbon and alloy steel
    ASTM A252 For batteries of seamless and welded steel tubes
    DIN DIN 17175 For heat resistant seamless steel pipes
    DIN 1629 For seamless circular tubes of non-alloy steels with special quality requirements
    DIN 2391 For precision seamless steel tubes for cold sausages or cold rolled products
    JIS JIS G3454 Seamless carbon steel pipeline for pressure service
    JIS G3456 Seamless carbon steel tube for high temperature service
    JIS G3461 Seamless carbon steel pipe for boiler and heat exchange
    EN EN 10210 For welded, welded structural hollow sections of non-alloy steel.
    EN 10216 Seamless steel tubes for pressure applications
    BS BS 3059 For carbon tubes, alloys and austenitic stainless steel with high temperature properties specified

    Dimension tolerances of seamless steel pipe

    Types of tubes Szie tube (mm) Tolerances
    Lamlamin OD <50 ±0.50mm
    ≥50 ±1%
    WT <4 ±12.5%
    ≥4~20 +15%, -12.5%
    >20 ±12.5%
    Cold cold OD 6~10 ±0.20mm
    10~30 ±0.40mm
    30~50 ±0.45
    >50 ±1%
    WT <1 ±0.15mm
    >1~3 + 15%, – 10%
    >3 + 12.5%, – 10%

    Tube for construction

    Sizes: outside diameter: 1-1/4 "-16", wall thickness: 0.109 "-0.562"

    Standard: astm a53, astm a106, astm a500/501-98, astm a519-98, jis g3441-1994, jis g3444-1994, bs en 10210-1

    Application: used in general structure and mechanism, including construction, machinery, transport

    Tube of the boiler

    Sizes: outer diameter: 6.0mm-114.0mm, wall thickness: 1.0mm-15.0mm

    Standard: gb3087-1999, astm a179, astm a106, jis g3454

    Application: used for the manufacture of overheated pipes, steam pipe, boiling water pipe, draught pipe, small draught pipe, etc.

    Seamless steel tubes for liquids

    Sizes: outer diameter: 19.05-168.3mm, wall thickness: 2.31-14.27mm

    Standard: gb/t8163-1999, astm a53-98, jis g3452-1998, jis g3454-1998, astm a106, din 1629-1984

    Application: for transportation of oil, gas and other fluids

    Pipes of pipes

    Dimensions: external diameter: 73-630mm, wall thickness: 6-35mm

    Standard :API 5l

    Application: gas, water, transportation in petroleum and natural gas industries

    Drilling tubes

    Sizes: outer diameter: 2-7/8 "-6-5/8", wall thickness: up to 0.813"

    Standard :API 5d

    Application: for well drilling

    Petroleum cracking tubes

    Sizes: outside diameter: 1.315 "- 20", wall thickness: 0.133 "-0.500"

    Standard: gb9948-1988

    Application: for the manufacture of furnace tubes, heat exchangers and pipes in refineries

    Chemical composition and mechanical properties

    Standard Degree Chemical components (%) Mechanical properties
    c Si Mn P S Mo Cr V Tensile strength (mpa) Tensile strength (mpa) Elongation (%)
    ASTM A53 A ≤0.25 / ≤0.95 ≤0.05 ≤0.06 ≤0.15 ≤0.40 ≤0.08 ≥330 ≥205 ≥29.5
    B ≤0.30 / ≤1.2 ≤0.05 ≤0.06 ≤0.15 ≤0.40 ≤0.08 ≥415 ≥240 ≥29.5
    Standard Degree Chemical components (%) Mechanical properties
    c Si Mn P S Mo Cr V Tensile strength (mpa) Tensile strength (mpa) Elongation (%)
    ASTM A106 A ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≤0.15 ≤0.40 ≤0.08 ≥415 ≥240 ≥30
    B ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≤0.15 ≤0.40 ≤0.08 ≥485 ≥275 ≥30
    Standard Degree Chemical components (%) Mechanical properties
    c Si Mn P S Tensile strength (mpa) Tensile strength (mpa) Elongation (%)
    ASTM A179 A179 0.06-0.18 / 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180

    ≥35

     
    Standard Degree Chemical components (%) Mechanical properties
    c Si Mn P S Tensile strength (mpa) Tensile strength (mpa) Elongation (%)
    ASTM A192 A192 0.06-0.18 ≤0.25 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180 ≥35
    Standard Degree Chemical components Tensile strength (min) Limit of them (me)
    C Mn P S Mpa Mpa
    API 5L PSL1 A 0.22 0.90 0.030 0.030 331 207
    B 0.28 1.20 0.030 0.030 414 241
    X42 0.28 1.30 0.030 0.030 414 290
    X46 0.28 1.40 0.030 0.030 434 317
    X52 0.28 1.40 0.030 0.030 455 359
    X56 0.28 1.40 0.030 0.030 490 386
    X60 0.28 1.40 0.030 0.030 517 414
    X65 0.28 1.40 0.030 0.030 531 448
    X70 0.28 1.40 0.030 0.030 565 483
    Standard Degree Chemical components Tensile strength (min) Limit of them (me)
    C Mn P S Mpa Mpa
    API 5L PSL2 B 0.24 1.20 0.025 0.015 414 241
    X42 0.24 1.30 0.025 0.015 414 290
    X46 0.24 1.40 0.025 0.015 434 317
    X52 0.24 1.40 0.025 0.015 455 359
    X56 0.24 1.40 0.025 0.015 490 386
    X60 0.24 1.40 0.025 0.015 517 414
    X65 0.24 1.40 0.025 0.015 531 448
    X70 0.24 1.40 0.025 0.015 565 483
    X80 0.24 1.40 0.025 0.015 621 552

Stainless Steel Series

Pipe、 elbows、 tees、reducers、 caps、 flanges

Still deciding? Get samples first,  Contact US !

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