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        • Name: Alloy Steel Pipe
        • Number: 011.01.01
        • Views : 340

        Definition: Is a kind of seamless steel pipe, alloy pipe is divided into structure with seamless tube and high pressure heat resistant alloy tube.Main difference in the alloy tube production standards and its industry, is the alloy pipe annealing and tempering change its mechanical properties.Its performance is higher than the average seamless steel tube using mercurial, chemical composition contains Cr alloy tube is more, high temperature resistant, good low temperature resistance, corrosion resistance performance.

        Material:15CrMoG、12Cr2MoG、12Cr1MoVG、12Cr2MoWVTiB、10Cr9Mo1VNb、SA210A1、SA210C、SA213 T11、SA213 T12、SA213 T22、SA213 T23、SA213 T91、SA213 T92、ST45.8/Ⅲ、15Mo3、13CrMo44、10CrMo910etc.
        ASTM A335 P2,ASTM A355 P12,ASTM A335 P11,ASTM A335 P22,ASTM A335 P5 ,
        ASTM A335 P9,ASTM A213 T2,ASTM A213 T12,ASTM A213 T11, ASTM A213 T22,
        ASTM A200 T5,ASTM A213 T9,

        Theoretical Weight : (OD - wall thickness)* wall thickness*0.02483 = the weight of per meter

        standard:GB/T423T - 92, ASTM, JIS, etc.

        Designation Symbol Description
        1,Cold finished (hard)BK【+C】Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation
        2,Cold finished (Soft)BKW【+LC】The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)
        3,Cold finished and stress-relieved BKS【+SR】Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.
        4,Annealed GBK【+A】The last Cold forming process is followed by annealing in a controlled atmosphere.
        5,Normalized NBK【+N】The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

        Surface treatment:
        1) Bared
        2) Black Painted or other colors painted(varnish coating)
        3) Galvanized
        4) With Oiled
        5) 3 PE, FBE, corrosion resistant coating

        Technique
        Electronic Resistance Welded (ERW )
        Electronic Fusion Welded (EFW)
        Double Submerged Arc Welded (DSAW)

        Package
        1) Bundle,
        2) In Bulk
        3) Bags
        4) Clients' Requirements

        End protector
        1) Plastic pipe cap
        2) Iron protector

        Ends
        1) Plain
        2) Beveled
        3) Thread with Coupling or cap
        4)Bending
         




         

        Mechanical properties

        Standard

        Grade

        Tensile strength(MPa)

        Yield strength(MPa)

        Elongation(%)

        Hardness

        GB3087

        10

        335~475

        ≥195

        ≥24

        /

        20

        410~550

        ≥245

        ≥20

        /

         

        GB5310

        20G

        410~550

        ≥245

        ≥24

        /

        20MnG

        ≥415

        ≥240

        ≥22

        /

         

        25MnG

        ≥485

        ≥275

        ≥20

        /

         

        15CrMoG

        440~640

        ≥235

        ≥21

        /

         

        12Cr2MoG

        450~600

        ≥280

        ≥20

        /

         

        12Cr1MoVG

        470~640

        ≥255

        ≥21

        /

         

        12Cr2MoWVTiB

        540~735

        ≥345

        ≥18

        /

         

        10Cr9Mo1VNb

        ≥585

        ≥415

        ≥20

        /

         

        ASME SA210

        SA210A-1

        ≥415

        ≥255

        ≥30

        ≤143HB

        SA210C

        ≥485

        ≥275

        ≥30

        ≤179HB

         

        ASME SA213

        SA213 T11

        ≥415

        ≥205

        ≥30

        ≤163HB

        SA213 T12

        ≥415

        ≥220

        ≥30

        ≤163HB

         

        SA213 T22

        ≥415

        ≥205

        ≥30

        ≤163HB

         

        SA213 T23

        ≥510

        ≥400

        ≥20

        ≤220HB

         

        SA213 T91

        ≥585

        ≥415

        ≥20

        ≤250HB

         

        SA213 T92

        ≥620

        ≥440

        ≥20

        ≤250HB

         

        DIN17175

        ST45.8/Ⅲ

        410~530

        ≥255

        ≥21

        /

        15Mo3

        450~600

        ≥270

        ≥22

        /

         

        13CrMo44

        440~590

        ≥290

        ≥22

        /

         

        10CrMo910

        480~630

        ≥280

        ≥20

        /

         


        Chemical composition

        Standard

        Grade

        Chemical composition(%)

                                 

        C

        Si

        Mn

        P

        S

        Cr

        Mo

        Cu

        Ni

        V

        Al

        W

        Ti

        Nb

        N

         

        GB3087

        10

        0.07~0.13

        0.17~0.37

        0.38~0.65

        ≤0.030

        ≤0.030

        0.3~0.65

        /

        ≤0.25

        ≤0.30

        /

        /

             

        20

        0.17~0.23

        0.17~0.37

        0.38~0.65

        ≤0.030

        ≤0.030

        0.3~0.65

        /

        ≤0.25

        ≤0.30

        /

        /

               

        GB5310

        20G

        0.17~0.24

        0.17~0.37

        0.35~0.65

        ≤0.030

        ≤0.030

        ≤0.25

        ≤0.15

        ≤0.20

        ≤0.25

        ≤0.08

               

        20MnG

        0.17~0.24

        0.17~0.37

        0.70~1.00

        ≤0.030

        ≤0.030

        ≤0.25

        ≤0.15

        ≤0.20

        ≤0.25

        ≤0.08

                 

        25MnG

        0.18~0.24

        0.17~0.37

        0.80~1.10

        ≤0.030

        ≤0.030

        ≤0.25

        ≤0.15

        ≤0.20

        ≤0.25

        ≤0.08

                 

        15CrMo

        0.12~0.18

        0.17~0.37

        0.40~0.70

        ≤0.030

        ≤0.030

        0.80~1.10

        0.40~0.55

        ≤0.20

        ≤0.30

                   

        12Cr2MoG

        0.08~0.15

        ≤0.50

        0.40~0.70

        ≤0.030

        ≤0.030

        2.00~2.50

        0.90~1.20

        ≤0.20

        ≤0.30

                   

        12Cr1MoV

        0.08~0.15

        0.17~0.37

        0.40~0.70

        ≤0.030

        ≤0.030

        0.90~1.20

        0.25~0.35

        ≤0.20

        ≤0.30

        0.15~0.30

                 

        12Cr2MoWVTiB

        0.08~0.15

        0.45~0.75

        0.45~0.65

        ≤0.030

        ≤0.030

        1.60~2.10

        0.50~0.65

        ≤0.20

        ≤0.30

        0.28~0.42

         

        0.30~0.55

        0.08~0.15

        B 0.002~0.008

         

        10Cr9Mo1VNb

        0.08~0.12

        0.20~0.50

        0.30~0.60

        ≤0.020

        ≤0.010

        8.00~9.50

        0.85~1.05

        ≤0.20

        ≤0.40

        0.18~0.25

        ≤0.015

           

        0.06~0.10

        0.03~0.07

        ASME SA210

        SA210A-1

        0.13~0.19

        ≥0.1

        0.45~0.65

        ≤0.030

        ≤0.030

                         

        SA210C

        0.18~0.24

        ≥0.1

        0.80~1.10

        ≤0.030

        ≤0.030

                           

        ASME SA213

        SA213 T11

        0.05~0.15

        0.50~1.0

        0.30~0.60

        ≤0.030

        ≤0.030

        1.00~1.50

        0.50~1.00

                     

        SA213 T12

        0.05~0.15

        ≤0.50

        0.30~0.61

        ≤0.030

        ≤0.030

        0.80~1.25

        0.44~0.65

                       

        SA213 T22

        0.05~0.15

        ≤0.50

        0.30~0.60

        ≤0.030

        ≤0.010

        1.90~2.60

        0.87~1.13

                       

        SA213 T23

        0.04~0.10

        ≤0.50

        0.10~0.60

        ≤0.030

        ≤0.030

        1.90~2.60

        0.05~0.30

             

        ≤0.030

        1.45~1.75

        B 0.0005~0.006

        0.02~0.08

        ≤0.040

        SA213 T91

        0.08~0.12

        0.20~0.50

        0.30~0.60

        ≤0.020

        ≤0.010

        8.00~9.50

        0.85~1.05

         

        ≤0.40

        0.18~0.25

        ≤0.015

           

        0.06~0.10

        0.03~0.07

        SA213 T92

        0.07~0.13

        ≤0.50

        0.30~0.60

        ≤0.020

        ≤0.010

        8.50~9.50

        0.30~0.60

         

        ≤0.40

        0.15~0.25

        ≤0.015

        1.50~2.00

        B 0.001~0.006

        0.04~0.09

        0.03~0.07

        DIN 17175

        ST45.8/

        ≤0.21

        0.10~0.35

        0.40~1.20

        ≤0.040

        ≤0.040

                         

        15Mo3

        0.12~0.20

        0.10~0.35

        0.40~0.80

        ≤0.035

        ≤0.035

         

        0.25~0.35

                       

        13CrMo44

        0.10~0.18

        0.10~0.35

        0.40~0.70

        ≤0.035

        ≤0.035

        0.70~1.10

        0.45~0.65

                       

        10CrMo910

        0.08~0.15

        ≤0.50

        0.30~0.70

        ≤0.025

        ≤0.020

        2.00~2.50

        0.90~1.10

        ≤0.30

        ≤0.30

         

        ≤0.015

               


        Alloy steel pipe applies to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, corrosion resistant part. The size of Alloy steel pipe can be made according to the customers’ requirements.

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