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GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10

    Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers
     
    Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers
    • Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers
    • Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers
    • Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers
    • Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers
    • Buy cheap GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 from wholesalers

    GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10

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    Brand Name : Torich
    Model Number : GB 9948
    Certification : ISO9001:2008,ISO14001:2008
    Price : negotiable
    Payment Terms : D/A, L/C, D/P, T/T, Western Union, MoneyGram
    Supply Ability : 60000Ton Per Year
    Delivery Time : 30 Work days
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    GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10

    Product name: GB 9948 Material10#20# 12CrMo 15CrMo 12Cr1MoV Petroleum Cracking Seamless Steel Tubes


    Out Diameter: 3~500mm


    Wall Thickness: 0.5~50mm


    Application: It is used for the seamless steel tubes for furnace,heat exchangers, Petroleum Cracking etc.


    Table1 The Tolerances of Outer Diameter and Wall Thickness Unit:mm

    Sort CodeManufacuring MethodNominal SizeTolerances
    Common LevelHigh Level
    W-HHot Rolling (Extrusion)Outer Diameter D≤54±0.50±0.30
    ＞54~325±1%D±0.75%D
    ＞325±1%D-
    Wall Thicknass S≤20

    +15%S

    -10%S

    		±10%S
    ＞20

    +12.5%S

    -10%S

    		±10%S
    Hot ExpandOuter Diameter DAll±1%D
    Wall Thicknass SAll±15%S
    W-CCold Drawn(Rolling)Outer Diameter D≤25.4±0.15
    ＞25.4~40±0.20
    ＞40~50±0.25
    ＞50~60±0.30
    ＞60±0.75%D±0.5%D
    Wall Thicknass S≤3.0±0.3±0.2
    ＞3.0±10%S±7.5%S

    Table2 The Tolerance of Minimum Wall Thickness Unit :mm

    Sort CodeManufacturing MethodMinimum Wall Thickness SminTolerance
    Common LevelHigh Level
    W-HHot Rolling(Extrusion)≤4.0

    +0.90

    0

    +0.70

    0

    ＞4.0

    +25%Smin

    0

    +22%Smin

    0

    W-CCold Drawn(Rolling)≤3.0

    +0.6

    0

    +0.4

    0

    ＞3.0

    +20%Smin

    0

    +15%Smin

    0

    Table3 Steel grade and chemical composition

    Steel gradeChemical composition %
    CSiMnCrMoNiNbTiVCuPS
    ≤
    10

    0.07~

    0.13

    0.17~

    0.37

    0.35~

    0.65

    		≤0.15≤0.15

    ≤

    0.25

    		——≤0.08≤0.200.0250.015
    20

    0.17~

    0.23

    0.17~

    0.37

    0.35~

    0.65

    		≤0.25≤0.15

    ≤

    0.25

    		——≤0.08≤0.200.0250.015
    12CrMo

    0.08~

    0.15

    0.17~

    0.37

    0.40~

    0.70

    0.40~

    0.70

    0.40~

    0.55

    ≤

    0.30

    		———≤0.200.0250.015
    15CrMo

    0.12~

    0.018

    0.17~

    0.37

    0.40~

    0.70

    0.80~

    1.10

    0.40~

    0.55

    ≤

    0.30

    		———≤0.200.0250.015
    12CrlMo

    0.08~

    0.15

    0.50~

    1.00

    0.30~

    0.60

    1.00~

    1.50

    0.45~

    0.65

    ≤

    0.30

    		———≤0.200.0250.015
    12CrlMoV

    0.08~

    0.15

    0.17~

    0.37

    0.40~

    0.70

    0.90~

    1.20

    0.25~

    0.35

    ≤

    0.30

    		——

    0.15~

    0.30

    		≤0.200.0250.015
    12Cr2Mo

    0.08~

    0.15

    		≤0.50

    0.40~

    0.60

    2.00~

    2.50

    0.90~

    1.13

    ≤

    0.30

    		———≤0.200.0250.015

    12Cr5MoI

    12Cr5MoNT

    ≤

    0.15

    		≤0.50

    0.30~

    0.60

    4.00~

    6.00

    0.45~

    0.60

    ≤

    0.60

    		———≤0.200.0250.015

    12Cr9MoI

    12Cr9MoNT

    ≤

    0.15

    0.25~

    1.00

    0.30~

    0.60

    8.00~

    10.00

    0.90~

    1.10

    ≤

    0.60

    		———≤0.200.0250.015
    07Cr19Ni10

    0.04~

    0.10

    ≤

    1.00

    		≤2.00

    18.00~

    20.00

    		—

    8.00~

    11.00

    		————0.0300.015
    07Cr18Ni11Nb

    0.04~

    0.10

    ≤

    1.00

    		≤2.00

    17.00~

    19.00

    		—

    9.00~

    12.00

    8C~

    1.10

    		———0.0300.015
    07Cr19Ni11NTi

    0.04~

    0.10

    		≤0.75≤2.00

    17.00~

    20.00

    		—

    9.00~

    13.00

    		—

    4C~

    0.60

    		——0.0300.015
    022Cr17Ni12Mo2

    ≤

    0.30

    		≤1.00≤2.00

    16.00~

    18.00

    2.00~

    3.00

    10.00~

    14.00

    		————0.0300.015

    Table4 Heat Treatment Standard

    Steel GradeHeat Treatment Standard
    10aNormalizing；At Temperature 880℃~940℃
    20aNormalizing:At Temperature 880℃~940℃
    12CrMob

    Normalizing:At Temperature 900℃~960℃

    Tempering:At Temperature 670℃~730℃

    15CrMob

    Normalizing:At Temperature 900℃~960℃

    Tempering:At Temperature 680℃~730℃

    12Cr1Mob

    Normalizing:At Temperature 900℃~960℃

    Tempering:At Temperature 680℃~750℃

    12Cr1MoVb

    S≤30mm:Normalizing:At Temperature 980℃~1020℃

    Tempering:At Temperature 720℃~760℃

    S＞30mm:Quenching:At Temperature 950℃~990℃

    Tempering:At Temperature 720℃~760℃

    Or Normalizing:At Temperature 980℃~1020℃

    (rapid cooling after Normalizing)

    Tempering:At Temperature 720℃~760℃

    12Cr2Mob

    S≤30mm:Normalizing:At Temperature 900℃~960℃

    Tempering:At Temperature 700℃~750℃

    S＞30mm:Quenching:At Temperature ≥ 900℃

    Tempering:At Temperature 700℃~750℃

    Or Normalizing:At Temperature 900℃~960℃

    (rapid cooling after Normalizing)

    Tempering:At Temperature 700℃~750℃

    12Cr5MoIFull Annealing or isothermal annealing
    12Cr5MoNT

    Normalizing:At Temperature 930℃~980℃

    Tempering:At Temperature 730℃~770℃

    12Cr9MoIFull Annealing or isothermal annealing
    12Cr9MoNT

    Normalizing:At Temperature 890℃~950℃

    Tempering:At Temperature 720℃~800℃

    07Cr19Ni10

    Treatment with solid solving:At Temperature ≥ 1040℃

    (rapid cooling after Treatment)


    07Cr18Ni11Nb

    Treatment with solid solving:

    For Hot Rolled Tube At Temperature ≥ 1050℃

    For Cold Drawn(rolled)Tube At Temperature ≥ 1100℃

    (rapid cooling after Treatment)


    07Cr19Ni11Ti

    Treatment with solid solving:

    For Hot Rolled Tube At Temperature ≥ 1050℃

    For Cold Drawn(rolled)Tube At Temperature ≥ 1100℃

    (rapid cooling after Treatment)



    Table5 Mechanical Property

    Steel Grade

    Tensile

    Strength

    Rm/MPa

    		Lower yield strength Rp0.2/MPaElongation A/％Shock absorption KV2/JBrinell hardness
    Longitudinal directionTransverseLongitudinal directionTransverse
    ≥≤
    10335~47520525234027-
    20410~55024524224027-
    12CrMo410~56020521194027156HBW
    15CrMo440~64029521194027170HBW
    12Cr1Mo415~56020522204027163HBW
    12Cr2MoV470~64025521194027179HBW
    12Cr2Mo450~60028022204027163HBW
    12Cr5MoI415~59020522204027163HBW
    12Cr5MoNT480~64028020184027-
    12Cr9MoI460~64021020184027179HBW
    12Cr9MoNT590~74039018164027-
    07Cr19Ni10≥52020535--187HBW
    07Cr18Ni11Nb≥52020535--187HBW
    07Cr19Ni11Ti≥52020535--187HBW
    022Cr17Ni12Mo2≥48517035--187HBW
    If the wall thickness of the tube is less than 5mm, doesn’t have to do the hardness test

    Table6 Impact energy absorption attenuation factor of small sample

    SpecimenSpecimen size(heightXwidth)mmAttenuation factor
    Standard sample10X101.00
    Small sample10X7.50.75
    Small sample10X50.50

    Table7 Diameter flaring rate of steel tubes

    SteelDiameter flaring rate of steel tubes/%
    ID/OD
    ≤0.6＞0.6~0.8＞0.8
    Carbon structural steel101217
    Alloy structural steel81015
    Stainless(heat resistance)steel121520

    Table8 Testing items and sampling quantity of steel tubes

    NumberTesting itemsSampling quantity
    1Chemical composition1 sample from each furnace
    2Tensile test1 sample from each of two steel tubes on each batch
    3Hardness test3 samples taken on 2 steel tubes on each batch
    4Impact testAll
    5Hydraulic test1 sample from each of two steel tubes on each batch
    6Flattening test2 samples taken on 2 steel tubes on each batch
    7Bending test1 sample taken on 2 steel tubes on each furnace
    8Flaring test2 samples taken on 2 steel tubes on each batch
    9Macroscopic examination1 sample taken on 2 steel tubes on each furnace
    10Non-metallic inclusions1 sample taken on 2 steel tubes on each furnace
    11Eddy current testingAll
    12Magnetic flux leakage detectionAll
    13Ultrasonic testingAll
    14Intergranular corrosion test1 sample from each of two steel tubes on each batch

    Table A.1 Comparison Table of Similar Steel Grade

    No.GBSimilar Steel Grade
    ISOENASTM/ASMEJIS
    110-P195GHASTB 340
    220PH26P235GHA-1,BSTB 410
    312CrMo--T2/P2STBA 20
    415CrMo13CrMo4-513CrMo4-5T12/P12STBA 22
    512Cr1Mo-10CrMo5-5T11/P11STBA 23
    612Cr1MoV----
    712Cr2Mo10CrMo9-1010CrMo9-10T22/P22STBA 24
    812Cr5Mo-IX11CrMo9-1TAX11CrMo5+IT5/P5STBA 25
    912Cr5Mo-NT-X11CrMo5+NTT5/P5STBA 25
    1012Cr9Mo-IX11CrMo9-1TAX11CrMo9-1+IT9/P9STBA 26
    1112Cr9Mo-NT-X11CrMo9-1+NTT9/P9STBA 26
    1207Cr19Ni10X7CrNi18-9X6CrNi18-10TP304HSUS 304H TB
    1307Cr18Ni11NbX7CrNiNb18-10X7CrNiNb18-10TP347HSUS 347H TB
    1407Cr19Ni11Ti-X6CrNiTi18-10TP321HSUS 321H TB
    15022Cr17Ni12Mo2-X2CrNiMo17-12-2TP316LSUS 316L TB

    Product Tags:

    seamless steel pipe

      

    precision stainless steel tubing

      
    Quality GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10 for sale

    GB9948 Petroleum Cracking Seamless Steel Tubes 10#20# 12CrMo 15CrMo 12Cr1MoV 07Cr19Ni10

    Company Info.
    TORICH INTERNATIONAL LIMITED
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