High quality carbon structural steel, alloy structural steel and stainless heat resistant steel high pressure seamless pipe for steam boiler pipelines under high pressure and above pressure

Overview

Application

Seamless steel tubes for petroleum cracking are applicable to seamless steel tubes for furnace tubes, heat exchange tubes and pressure pipes in petrochemical industry.

Main Grade

Grade of high-quality carbon structural steel:  10#、20#

Chemical Component

No

Grade

Chemical Component %

C

Si

Mn

Cr

Mo

Ni

Nb

Ti

V

Cu

P

S

High quality carbon structural steel

10

0. 07-0.13

0.17 -0. 37

0.35 -0.65

<0.15

<0.15

<0. 25

<0. 08

<0. 20

0. 025

0. 015

20

0.17-0. 23

0.17 -0. 37

0.35 -0.65

<0. 25

<0.15

<0. 25

<0. 08

<0. 20

0. 025

0. 015

Alloy structural steel

12CrMo

0. 08-0.15

0.17 -0.37

0. 40-0. 70

0. 40-0. 70

0. 40 -0.55

<0. 30

<0. 20

0. 025

0. 015

15CrMo

0.12 -0.18

0.17-0. 37

0.40 -0. 70

0. 80-1.1

0. 40-0.55

<0. 30

<0. 20

0. 025

0. 015

12CrlMo

0. 08 -0.15

0.50 -1. 00

0. 30-0.6

1.00-1. 50

0.45 -0.65

<0. 30

<0, 20

0. 025

0. 015

12CrlMoV

0. 08-0.15

0.17-0. 37

0. 40-0. 70

0.90-1.2

0. 25 -0.35

<0. 30

0.15 -0. 30

<0. 20

0.025

0. 010

12Cr2Mo

0.08-0.15

<0. 50

0. 40-0. 60

2. 00-2. 50

0. 90-1.13

<0. 30

<0. 20

0. 025

0. 015

12Cr5MoI

<0.15

<0. 50

0.30-0.6

4. 00-6

0. 45 -0. 60

<0. 60

<0. 20

0. 025

0. 015

12Cr5MoNT

12Cr9MoI

<0.15

0. 25-1. 00

0. 30-0. 60

8.00 -10. 00

0. 90-1.1

<0. 60

<0. 20

0. 025

0, 015

12Cr9MoNT

Stainless heat resistant steel

07Crl9Nil0

0. 04-0.1

<1. 00

<2. 00

18. 00-20. 00

8. 00-11

0. 030

0. 015

07Crl8NillNb

0. 04-0.1

<1. 00

<2. 00

17. 00-19. 00

9.00-12. 00

8C-1.1

0. 030

0. 015

07Crl9NillTi

0. 04-0.1

<0. 75

<2. 00

17.00-20. 00

9. 00~13. 00

4C-0. 60

0.03

0. 015

022Crl7Nil2Mo2

<0. 030

<1. 00

<2. 00

16. 00-18. 00

2. 00-3. 00

10. 00 -14. 00

0.03

0. 015

Mechanical Property

 No Tensile MPa Yield MPa Elong after fracture A/% Shork absorption energy kv2/j Brinell hardness number
portrait transver portrait transver
not less than no more than
10 335〜475 205 25 23 40 27
20 410〜550 245 24 22 40 27
12CrMo 410〜560 205 21 19 40 27 156 HBW
15CrMo 440〜640 295 21 19 40 27 170 HBW
12CrlMo 415〜560 205 22 20 40 27 163 HBW
12CrlMoV 470〜640 255 21 19 40 27 179 HBW
12Cr2Mo 450~600 280 22 20 40 27 163 HBW
12Cr5MoI 415〜590 205 22 20 40 27 163 HBW
12Cr5MoNT 480〜640 280 20 18 40 27
12Cr9MoI 460〜640 210 20 18 40 27 179 HBW
12Cr9MoNT 590—740 390 18 16 40 27
O7Crl9NilO 2520 205 35 187 HBW
07Crl8NillNb >520 205 35 187 HBW
07Crl9NillTi >520 205 35 187 HBW
022Crl7Nil2Mo2 >485 170 35 187 HBW
For steel with wall thickness less than 5mm tube do not make hardness experiment

Test Requirement

In addition to ensuring the chemical composition and mechanical properties, hydraulic test shall be carried out one by one, low power inspection shall be carried out for steel pipes directly rolled with ingots, and intergranular corrosion test shall be carried out for stainless (heat-resistant) steel pipes.

Supply Ability

Supply Ability: 2000 Tons Per Month Per Grade of petroleum cracking seamless steel pipe

Packaging

In Bundles And In Strong Wooden Box

Delivery

7-14 days if in stock, 30-45 days to produce

Payment

30% depsoit, 70% L/C or B/L copy   or  100% L/C at sight

Product Detail

 mechanical/Chemical&Fertilizer Pipes

GB/T8162-2008

ASTM_A519-2006

BS EN 10210-1-2006

ASTM A53A53M-2012

GB9948-2006

GB6479-2013

GB/T 17396-2009


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