Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

Petroleum cracking pipe


Petroleum cracking

 Uses: used in petroleum refinery furnace tubes heat exchangers and pipe seamless pipe

Main steel grade grades: 10, 20, 12CrMo, 15CrMo (after consultation, but also supply other special grades of steel)

Petroleum cracking pipe

Chemical composition, mechanical properties:

Standard

Steel grade

Chemical composition (%)

C

Si

Mn

Ni

Cr

Mo

PS

GB9948

10 

0.17 to 0.14

0.17 to 0.37

0.35 to 0.65

≤ 0.25

≤ 0.15

/

≤ 0.035

20 

0.17 to 0.24

0.17 to 0.37

0.35 to 0.65

≤ 0.25

≤ 0.25

/

≤ 0.035

12CrMo

0.08 ~ 0.15

0.17 to 0.37

0.40 to 0.70

≤ 0.30

0.40 to 0.70

0.40 to 0.55

≤ 0.035

15CrMo

0.12 ~ 0.18

0.17 to 0.37

0.40 to 0.70

≤ 0.30

0.80 to 1.10

0.40 to 0.55

≤ 0.035

Mechanical behavior

Tensile strength (MPa)

Yield strength (MPa)

Elongation (%)

10

330 to 490

≥ 205

≥ 24

20

410 to 550

≥ 245

≥ 21

12CrMo

410 ~ 560

≥ 205

≥ 21

15CrMo

440 to 640

≥ 235

≥ 21

Tolerance:

Classification Code

Manufacturing methods

Nominal pipe size

Tolerance

Ordinary Level

Advanced

WH

Hot-rolled    (extrusion) Pipe

Diameter (D)

≤ 50

+ .50

+ .30

> 50 to 159

+ 1% D

+ 0.75% D

> 159

+ 1% D

+ 0.9% D

Thickness (S)

> 20

+12.5% ​​S

-10% S

+ 10% S

Thermal expansion pipe

Diameter (D)

Entire

+ 1% D

Thickness (S)

Entire

+ 15% S

WC

Cold drawn (rolled) steel

Diameter (D)

14 to 30

+ .20

+ .30

> 30 to 50

+ .30

+ .30

> 50

+ 0.75% D

+ .30

Thickness (S)

> 3.0

+12.5% ​​S

-10% S

+ 10% S

> 3.0

+ 10% S

+ 7.5% S

Petroleum cracking pipe

上一篇:How to detect welded steel pipe hardness

下一篇:high pressure boiler pipe stock(Grade:SA-106C,20G,12Cr1MoVG)

 Copyright (c)2012 LongtaidiIf you do not find the information you need, Click Here  Get Support

New Update Pipe List

    ERW tube,Spiral welded pipe, galvanized pipe, seamless pipe
    ERW tube,Spiral welded pipe, galvanized pipe, seamless pipe,To spec API 5L, API 5CT, ASTM A53, ASTM A252, EN10217, EN10219, BS1387 etc.

    seamless steel pipe Price Schedule,Spiral Pipe Price
    seamless steel pipe Price Schedule,Spiral Pipe Price,1 seamless steel pipe 3 hot rolled,cold drawn process 4 grade:A53/A106/API 5L Gr.B.

    pipeline standard parameters
    The parameters of the standard implementation of the line pipe,Application status of oil and gas transmission pipeline steel standard pipe technical standards from the development side and the scope of the division can be divided into intern.

    Prime carbon steel pipe
    Prime carbon steel pipe 3.Grade/Material: API 5L , ASTM A106 B ,ASTM A53 B, 4.Outside Diameter(OD): 1/2--24'' IN. 5.Wall Thickness(WT): SCH5--SCHXXS..
Contact Us Online To Serve You Better

Hot Click PRO