Seamless Steel Pipe - Shandong Jiugang Tisco Steel Co., Ltd.

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SeamlessSteelPipe-ShandongJiugangTiscoSteelCo.,Ltd.

Carbon steel/

Seamless Steel Pipe

Seamless Steel Pipe & Tube, Carbon Seamless Steel Pipe,SMLS Pipe & Tube,Black Seamless Pipe, GI Seamless PipeSizes:Maximum diameter: 36" (914.4mm)      minimum diameter: 1/2" (21.3mm) Maximum thickness: 60mm                     mininmum thickness: 2.11mm SCH: SCH10,SCH20,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH160,XXS Uses: Chilled water pipe Steam/condensate pipe Heat exchanger pipe Marine/offshore pipe Dredging pipe Industrial pipe Oil and gas pipe Fire fighting pipe Construction/structure pipe Irrigation pipe Drain/sewage pipe Boiler tube Coating 3PE Coating 3PP Coating FBE Coating Epoxy Coating Special Painting Standard of carbon seamless steel pipe ASTM A53 Gr.B Black and hot-dipped zinc-coated steel pipes welded and seamless ASTM A106 Gr.B Seamless carbon steel for high temperature service ASTM SA179 Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes ASTM…

  • Product Details
  • Seamless Steel Pipe & Tube, Carbon Seamless Steel Pipe,SMLS Pipe & Tube,Black Seamless Pipe, GI Seamless PipeSizes:Maximum diameter: 36″ (914.4mm)      minimum diameter: 1/2″ (21.3mm)
    Maximum thickness: 60mm                     mininmum thickness: 2.11mm

    SCH: SCH10,SCH20,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH160,XXS

    Uses:

    Chilled water pipe Steam/condensate pipe Heat exchanger pipe Marine/offshore pipe Dredging pipe Industrial pipe
    Oil and gas pipe Fire fighting pipe Construction/structure pipe Irrigation pipe Drain/sewage pipe Boiler tube

    Coating

    3PE Coating 3PP Coating FBE Coating Epoxy Coating Special Painting

    Standard of carbon seamless steel pipe

    ASTM A53 Gr.B Black and hot-dipped zinc-coated steel pipes welded and seamless
    ASTM A106 Gr.B Seamless carbon steel for high temperature service
    ASTM SA179 Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes
    ASTM SA192 Seamless carbon steel boiler tubes for high pressure
    ASTM SA210 Seamless Medium-carbon boiler and superheater tubes
    ASTM A213 Seamless alloy-steel boiler, superheater, and heat-exchanger tubes
    ASTM A333 GR.6 seamless and welded carbon and alloy steel pipe intended for use at low temperatures.
    ASTM A335 P9,P11,T22,T91 Seamless ferritic alloy-steel pipe for high-temperature service
    ASTM A336 Alloy steel forgings for pressure and high-temperature parts
    ASTM SA519 4140/4130 Seamless carbon for mechanical tubing
    API Spec 5CT J55/K55/N80/L80/P110/K55 Seamless steel pipe for casing
    API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 Seamless steel pipe for line pipe
    DIN 17175 Seamless steel tube for elevated temperture
    DN2391 Cold drawn seamless prevision pipe
    DIN 1629 Seamless circular unalloyed steel tubes subject to special requirements

    Chemical components & mechanical properties

    Standard Grade Chemical Components (%) Mechanical Properties
    ASTM A53 C Si Mn P S Tensile STrength(Mpa) Yield STrength(Mpa)
    A ≤0.25 ≤0.95 ≤0.05 ≤0.06 ≥330 ≥205
    B ≤0.30 ≤1.2 ≤0.05 ≤0.06 ≥415 ≥240
    ASTM A106 A ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥415 ≥240
    B ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.035 ≥485 ≥275
    ASTM SA179 A179 0.06-0.18 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180
    ASTM SA192 A192 0.06-0.18 ≤0.25 0.27-0.63 ≤0.035 ≤0.035 ≥325 ≥180
    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 ≥448
    X65 0.28 1.40 0.030 0.030 ≥531 ≥448
    X70 0.28 1.40 0.030 0.030 ≥565 ≥483
    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

    Classfication of carbon seamless steel pipe

    Types Application
    Structure Purposes General structure and mechanical
    Liquid Services Petroleum, gas and other fluids conveying
    Low and Medium Pressure Boiler Tube Steam and boiler manufacturing
    Hydraulic Pillar Service Hydraulic support
    Auto Semi-shaft Casing Auto sem-shaft casing
    Line Pipe Oil and gas conveying
    Tubing and Casing Oil and gas conveying
    Drill Pipes Well drilling
    Geological Drilling Pipe Geological drilling
    Furnace tubes, heat exchangers tubes Furnace tubes, heat exchangers

    Tolerances of carbon seamless steel pipe

    Pipe types Pipe sizes(mm) Tolerances
    Hot rolled OD<50 ±0.50mm
    OD≥50 ±1%
    WT<4 ±12.5%
    WT 4~20 +15%, -12.5%
    WT>20 ±12.5%
    Cold drawn OD 6~10 ±0.20mm
    OD 10~30 ±0.40mm
    OD 30~50 ±0.45
    OD>50 ±1%
    WT≤1 ±0.15mm
    WT 1~3 +15%, -10%
    WT >3 +12.5%, -10%
    NOMINAL  PIPE  SIZE OD

    (mm)

    NOMINAL WALL THICKNESS

    DN NB(inch) ASME SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS
    15 1/2″ 21.3 2.11 2.41 2.77 2.77 3.73 3.73 4.78 7.47
    20 3/4″ 26.7 2.11 2.41 2.87 2.87 3.91 3.91 5.56 7.82
    25 1″ 33.4 2.77 2.9 3.38 3.38 4.55 4.55 6.35 9.09
    32 1.1/4″ 42.2 2.77 2.97 3.56 3.56 4.85 4.85 6.35 9.7
    40 1.1/2″ 48.3 2.77 3.18 3.68 3.68 5.08 5.08 7.14 10.15
    50 2″ 60.3 2.77 3.18 3.91 3.91 5.54 5.54 8.74 11.07
    65 2.1/2″ 73 3.05 4.78 5.16 5.16 7.01 7.01 9.53 14.02
    80 3″ 88.9 3.05 4.78 5.49 5.49 7.62 7.62 11.13 15.25
    90 3.1/2″ 101.6 3.05 4.78 5.74 5.74 8.08 8.08
    100 4″ 114.3 3.05 4.78 6.02 6.02 8.56 8.56 11.13 13.49 17.12
    125 5″ 141.3 3.4 6.55 6.55 9.53 9.53 12.7 15.88 19.05
    150 6″ 168.3 3.4 7.11 7.11 10.97 10.97 14.27 18.26 21.95
    200 8″ 219.1 3.76 6.35 7.04 8.18 8.18 10.31 12.7 12.7 15.09 18.26 20.62 23.01 22.23
    250 10″ 273 4.19 6.35 7.8 9.27 9.27 12.7 12.7 15.09 18.26 21.44 25.4 28.58 25.4
    300 12″ 323.8 4.57 6.35 8.38 9.53 10.31 14.27 12.7 17.48 21.44 25.4 28.58 33.32 25.4
    350 14″ 355.6 6.35 7.92 9.53 9.53 11.13 15.09 12.7 19.05 23.83 27.79 31.75 35.71
    400 16″ 406.4 6.35 7.92 9.53 9.53 12.7 16.66 12.7 21.44 26.19 30.96 36.53 40.19
    450 18″ 457.2 6.35 7.92 11.13 9.53 14.27 19.05 12.7 23.83 39.36 34.93 39.67 45.24
    500 20″ 508 6.35 9.53 12.7 9.53 15.09 20.62 12.7 26.19 32.54 38.1 44.45 50.01
    550 22″ 558.8 6.35 9.53 12.7 9.53 22.23 12.7 28.58 34.93 41.28 47.63 53.98
    600 24″ 609.6 6.35 9.53 14.27 9.53 17.48 24.61 12.7 30.96 38.89 46.02 52.37 59.54
    650 26″ 660.4 7.92 12.7 9.53 12.7
    700 28″ 711.2 7.92 12.7 15.88 9.53 12.7
    750 30″ 762 7.92 12.7 15.88 9.53 12.7
    800 32″ 812.8 7.92 12.7 15.88 9.53 17.48 12.7
    850 34″ 863.6 7.92 12.7 15.88 9.53 17.48 12.7
    900 36″ 914.4 7.92 12.7 15.88 9.53 19.05 12.7

    Production of seamless pipe

    The process begins with solid steel rounds, or billets, being cut to a specified length and sent through a walking-beam reheat furnace, where temperatures reach nearly 2,300°F. After exiting the reheat furnace, the preheated rounds are turned into a tube shell in the rotary piercing mill as the billets are cross-rolled between two barrel-shaped rolls at a high speed. The seamless shells enter mandrel mill, where they are rolled over a retained mandrel to provide the needed OD size and wall thickness for the next process. The process is carefully monitored using a state-of-the-art hot-wall measuring system. The shells are then reheated for final forming in a 24-stand stretch-reducing mill, where outside diameters are formed to customers’ exacting specifications. Wall thickness is again verified using a hot-wall measuring system. After being rotated and advanced on the walking-beam cooling bed, the pipes are batch cut and transferred to an in-process storage area, where they are handled by computer-controlled gantry cranes.

    Ultrasonic Inspection for Small-diameter Seamless Pipe
    Ultrasonic inspection is in accordance with pulse-echo method using water gap method. Flow detection is performed by angle beam technique to date longitudinal and transverse flow on the inner and outer surface of pipe, and wall thickness measurement is performed by normal beam technique. The pipe, which is conveyed helically through the testing device, is inspected.

    Electromagnetic Inspection for Large-diameter Seamless Pipe
    Plug mill is equipped with an Amalog-Sonoscope, electromagnetic inspection units after heat treatment. The Amalog-Sonoscope pipe inspection system detects defects by using flux leakage by electromagnetic induction in search coil. Amalog magnetic circuits detect longitudinal defects in both the inside and outside surface. Sonoscope magnetic circuits detect circumferential defects.

    Magnetic Particle Inspection
    The tube is magnetized and provided with magnetic particles (mostly fluorescent magnetic particle). The presence of flaws creates a magnetic flux which shows changes in fluorescent brilliance under black light. The change is detected visually.

    Carbon seamless steel pipe is a kind of strip steel. Steel pipe with hollow cross-section, a large number of pipes used to transport fluid, such as the transportation of oil, natural gas, gas, water and some solid materials such as pipes. Steel and round steel and other solid steel compared to the same bending strength in the same bending, lighter weight, is an economic section of steel, is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, Bicycle frames and steel construction scaffolding. The use of carbon seamless steel pipe manufacturing ring parts can improve material utilization, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jackets, etc., has been widely used to manufacture steel pipe.

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