Seamless Steel Tubes For Petroleum Cracking,GB9948-2006,Sanon Pipe
Overview Standard: GB9948-2006 Heat Treatment: Annealing/normalizing/Tempering Grade Group: 10、12CrMo、15CrMo, 07Crl9Nil0, etc Outer Diameter(Round): 10 - 1000 Mm Thickness: 1 - 100 mm Application: heat exchange tubes Outer Diameter(Round): 10 - 1000 mm Surface Treatment: As Customer's Requirement Length: Fixed length or random length Technique: Hot Rolled Section Shape: Round Special Pipe: Thick Wall Pipe Place of Origin: China Usage: heat exchange tubes Certification: ISO9001:2008 Test:UT/MT 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. High quality carbon structural steel grades are 20g, 20mng and 25mng. Alloy structural steel grades: 15mog, 20mog, 12crmog 15CrMoG、12Cr2MoG、12CrMoVG, etc Main Grade Grade of high-quality carbon structural steel: 10#、20# High quality carbon structural steel grades : 20g, 20mng and 25mng Alloy structural steel grades: 15mog, 20mog, 12crmog, 15CrMoG、12Cr2MoG,etc 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 — — 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 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 一 — 187 HBW For steel with wall thickness less than 5mm tube do not make hardness experiment Test Requirement Hydraulic test Hydraulic test shall be carried out for steel pipes one by one. The maximum test pressure is 20 MPa. Under the test pressure, the stabilization time shall not be less than 10 s, and leakage of steel pipe is not allowed. Flattening test Flattening test shall be conducted for steel pipe with outer diameter greater than 22 mm Flaring test High quality carbon structural steel and stainless (heat-resistant) steel pipes with an outer diameter of not more than 76 mm and a wall thickness of not more than 8 mm shall be subject to expanding test. The flaring test shall be carried out at room temperature. The outer diameter flaring rate of the sample after the top core taper is 60% of the flaring shall meet the requirements of table 7. No cracks or cracks are allowed on the sample after the flaring. According to the requirements of the demander and noted in the contract, the alloy structural steel can also be used for expanding test. Nondestructive teste The steel pipes shall be subject to ultrasonic flaw detection one by one in accordance with the provisions of GB / T 5777-2008. According to the requirements of the demander, other non-destructive tests can be added after negotiation between the supplier and the demander and indicated in the contract. Intergranular corrosion test Intergranular corrosion test shall be conducted for stainless (heat-resistant) steel pipe. The test method shall be in accordance with the provisions of Chinese method E in GB / T 4334-2008, and intergranular corrosion tendency is not allowed after the test. After negotiation between the supplier and the demander, and noted in the contract, the demander can designate other corrosion test methods. 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