Best Selling Seamless Stainless Steel Pipe Metal Pipe
1.1 The chemical composition of domestic seamless pipes supplied by chemical composition and mechanical properties, such as 10, 15, 20, 25, 30, 35, 40, 45 and 50 gauge steel should conform to the provisions of GB/T699-88. Imported seamless pipes are tested according to the relevant standards specified in the contract. 09MnV, 16Mn, 15MnV steel chemical composition should be in accordance with the provisions of GB1591-79.
1.2 specific analysis methods refer to GB223-84 "Steel and alloy chemical analysis methods" of the relevant part.
1.3 analysis deviation with reference to GB222-84 "chemical analysis of steel with specimens and finished chemical composition allowable deviation".
1.1 according to the institutional performance of the supply of domestic seamless pipe, ordinary carbon steel according to GB/T700-88 A steel manufacturing (but must ensure that the sulfur content does not exceed 0.050% and phosphorus content does not exceed 0.045%), its mechanical properties should be consistent with the values specified in the table GB8162-87.
1.2 The domestic seamless pipes supplied according to the hydraulic test must ensure the hydraulic test as stipulated in the standard.
1.3 The physical property inspection of imported seamless pipes shall be carried out according to the relevant standards specified in the contract.
1.1 Seamless pipe is widely used. General purpose seamless pipe is rolled from ordinary carbon structural steel, low alloy structural steel or alloy structural steel, the most production, mainly used as a pipeline or structural parts for the transport of fluids.
1.2 according to the use of different types of supply: a, according to the chemical composition and mechanical properties of supply; b, according to the mechanical properties of supply; c, according to the hydraulic test supply. Steel pipes supplied according to category a and b are also subjected to hydrotesting if they are used to withstand liquid pressure.
1.3 Specialized purpose seamless tubes include seamless tubes for boilers, seamless tubes for geology and seamless tubes for petroleum, and many others.
| Product Name | In-stock material | Implementation Standards | In-stock specifications | Product Applications |
| Alloy Tubes |
12Cr1MoVG 12CrMoG15CrMoG 12Cr2Mo<A335P22> Cr5Mo<A335P5> Cr9Mo<A335P9> 10Cr9Mo1VNb<A335P91> 15NiCuMoNb5<WB36> 12Cr2MoWVTiB<钢102> |
GB5310-1995 GB6479-2000GB9948-2006 DIN17175-79 ASTM SA335 ASTM SA213 JISG3467-88 JISG3458-88 |
∮8-1240*1-200 | Seamless steel tubes for high temperature, low temperature and corrosion resistance for petroleum, chemical, electric power and boiler industries |
| Stainless Steel Tubes |
0Cr18Ni9<304> 00Cr19Ni10<304L> 00Cr25Ni20<310S> 0Cr17Ni12Mo2<316> 00Cr17Ni14Mo2<316L> 1Cr18Ni9Ti<321> 0Cr18Ni10Ti 0Cr18Ni11Nb<347> |
GB/T14975-2002 GB/T14976-2002 GB13296-2007 ASTM A213 ASTM A269 ASTM A312 JIS G3459 DIN 17458 |
∮6-630*0.5-60 | Applicable to petroleum, aviation, smelting, food, water conservancy, electric power, chemical, chemical fiber, pharmaceutical machinery and other industries |
| Cryogenic tubes |
16MnDG、10MnDG、09DG 09Mn2VDG、06Ni3MoDG ASTM A333Grade1 ASTM A333Grade3 ASTM A333Grade4 ASTM A333Grade6 ASTM A333Grade7 ASTM A333Grade8 ASTM A333Grade9 ASTM A333Grade10 ASTM A333Grade11 |
GB/T18984-2003ASTM A333 | ∮8-1240*1-200 | Seamless steel pipe for -45℃～-195℃ class low temperature pressure vessel piping and low temperature heat exchange piping |
| High pressure boiler tube | 20GASTM SA106B/CASTM SA210A/C
ST45.8-III |
GB5310-1995ASTM SA106ASTM SA210
DIN17175-79 |
∮8-1240*1-200 | Suitable for manufacturing high-pressure boiler heater tubes, collectors, steam pipes, etc. |
| High pressure fertilizer pipe | 102016Mn | GB6479-2000 | ∮8-1240*1-200 | Applicable to chemical equipment and pipelines with working temperature of -40--400℃ and working pressure of 10-32Mpa |
| Petroleum cracking pipe | 1020 | GB9948-2006 | ∮8-630*1-60 | Furnace tubes, heat exchange tubes and pipes for petroleum refineries |
| Low and 15px pressure boiler tubes | 10#20#16Mn<Q345A.B.C.D.E> | GB3087-2008 | ∮8-1240*1-200 | Suitable for manufacturing various structures of low and 15px pressure boilers and locomotive boilers |
| Fluid transport pipes | 10#、20#ASTM A106A,B,C、A53A,B16Mn<Q345A.B.C.D.E> | GB/T8163-2008ASTM A106ASTM A53 | ∮8-1240*1-200 | General seamless steel pipes suitable for transporting fluids |
| General structural tube | 10#、20#、45#、27SiMnASTM A53A,B16Mn<Q345A,B,C,D,E> | GB/T8162-2008GB/T17396-1998ASTM A53 | ∮8-1240*1-200 | Suitable for general structures, engineering supports, machining, etc. |
| Oil casing | J55、K55、N80、L80C90、C95、P110 | API SPEC 5CTISO11960 | ∮60.23-508.00*4.24-16.13 | Oil tubing is used to pump oil or gas in oil wells Casing is used as the well wall of oil and gas wells |
| Pipeline Pipe | A、B、X42、X46、X52、X56、X60、X65、X70、X80L245、L290、L360、L415、L450 | API SPEC 5LGB/T9711.1GB/T9711.2 | ∮32-1240*3-100 | Oxygen, water and oil transmission pipes used in the oil and gas industry |
| Straight seam steel pipe | 20、Q195、Q215A,BQ235A,B、Q345A,B,C,D,E | GB/T13793-1992GB3091-2001 | ∮32-630*1-30 | Suitable for general structural support, low pressure fluid transfer, etc. |
| Spiral steel pipe | Q235A-B、Q345A-E | SY/T5037-2000 | 219-2820*4-20 | Steel pipes for low pressure fluid transportation |
