Seamless steel tubes for petroleum cracking are applicable to seamless steel tubes for furnace tubes, heat exchange tubes and pressure pipes in petrochemical industry.
Grade of high-quality carbon structural steel: 10#、20#
|
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 |
— |
— |
一 |
<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 |
— |
— |
一 |
<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 |
— |
— |
一 |
<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 |
一 |
一 |
0.03 |
0. 015 |
||
|
022Crl7Nil2Mo2 |
<0. 030 |
<1. 00 |
<2. 00 |
16. 00-18. 00 |
2. 00-3. 00 |
10. 00 -14. 00 |
— |
一 |
一 |
— |
0.03 |
0. 015 |
||
| 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 | 一 | — | 187 HBW | |
| For steel with wall thickness less than 5mm tube do not make hardness experiment | |||||||
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: 2000 Tons Per Month Per Grade of petroleum cracking seamless steel pipe
In Bundles And In Strong Wooden Box
7-14 days if in stock, 30-45 days to produce
30% depsoit, 70% L/C or B/L copy or 100% L/C at sight