100% Original Factory China Seamless Steel Pipe 20g for High Pressure Steam Boiler Pipe

We thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for 100% Original Factory China Seamless Steel Pipe 20g for High Pressure Steam Boiler Pipe, We think this sets us apart from the competition and makes customers choose and trust us. We all wish to develop win-win deals with our prospects, so give us a connect with today and make a new good friend! We thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for Carbon Steel Seamless Pipe, China Seamless Steel Pipe, Providing the best products, the most perfect service with the most reasonable prices are our principles. We also welcome OEM and ODM orders.Dedicated to strict quality control and thoughtful customer service, we are always available to discuss your requirements and ensure full customer satisfaction. We sincerely welcome friends to come negotiate business and start cooperation.

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 <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

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

We thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for 100% Original Factory China Seamless Steel Pipe 20g for High Pressure Steam Boiler Pipe, We think this sets us apart from the competition and makes customers choose and trust us. We all wish to develop win-win deals with our prospects, so give us a connect with today and make a new good friend! 100% Original Factory China Seamless Steel Pipe, Carbon Steel Seamless Pipe, Providing the best products, the most perfect service with the most reasonable prices are our principles. We also welcome OEM and ODM orders.Dedicated to strict quality control and thoughtful customer service, we are always available to discuss your requirements and ensure full customer satisfaction. We sincerely welcome friends to come negotiate business and start cooperation.

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