 |
What is stainless steel seamless tube?
By definition,stainless steel seamless tube are uniform tubes.The superiority of it is more strength, supreme corrosion resistance and the ability to sustain greater pressure.Unlike welded pipes,which are made by welding together two or more pieces of steel,seamless tubes are produced from a single piece of stainless steel billet.Due to these characteristics, seamless tubes can be used in harsh environments.
What are the properties of seamless steel tube?
High precision
Smaller diameter
Relatively dense metal
Good toughness
Strong corrosion resistance
Standards & Grades
Standards | Grades | Standards | Grades |
ASTM | A312,A778,A358,A249,A269,A270, A554,A790,A789,A928 | ASTM/ASME | TP304,TP304L,TP304H,TP316,TP316L,TP321, TP321H,TP310S,TP310H,TP317,TP317L,TP347, TP347H,TP409,TP430,TP444,N08904,S31803, S32205,S32750, S32760 |
JIS | G3459,G3468,G3446,G3463,G3448 | ||
EN | EN 10217-7,EN10312 | EN | 1.4301,1.4306,1.4307,1.4401,1.4404,1.4410, 1.4429,1.4462,1.4541,1.4571, 1.4539, 1.4550 |
DIN | DIN17457,DIN11850 | ||
GB | GB/T12770,GB/T12771,GB/T24593, GB/T19228,GB/T21832 | GB/HG | 12Cr18Ni9,06Cr19Ni10,22Cr19Ni10,07Cr19Ni10,06Cr23Ni13,06Cr25Ni20,06Cr17Ni12Mo2,06Cr19Ni13Mo3,022Cr19Ni13Mo3,06Cr18Ni11Ti,06Cr18Ni11Nb,07Cr18Ni11Nb,022Cr22Ni5Mo3N, 022Cr23Ni5Mo3N,022Cr25Ni7Mo4N |
HG | HG20537.1,HG20537.2,HG20537.3, HG20537.4 | ||
Non-Standard products are available upon customer requirements. Other Grades are available upon customer requirements after PQR. | |||
Outside Diameter&Wall Thickness
STAINLESS STEEL (ASTM /ANSI) | ||||||||||
SIZE | O.D | SCH5S | SCH10S | SCH10 | SCH20S | SCH40S | SCH40 | STD | SCH80S | SCH80 |
1/8" | 10.29 | - | 1.24 | 1.24 | - | 1.73 | 1.73 | 1.73 | 2.41 | 2.41 |
1/4" | 13.72 | - | 1.65 | 1.65 | - | 2.24 | 2.24 | 2.24 | 3.02 | 3.02 |
3/8" | 17.15 | - | 1.65 | 1.65 | - | 2.31 | 2.31 | 2.31 | 3.20 | 3.20 |
1/2" | 21.34 | 1.65 | 2.11 | 2.11 | - | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 |
3/4" | 26.67 | 1.65 | 2.11 | 2.11 | - | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 |
1" | 33.4 | 1.65 | 2.77 | 2.77 | - | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 |
1-1/4" | 42.16 | 1.65 | 2.77 | 2.77 | - | 3.56 | 3.56 | 3.56 | 4.85 | 4.85 |
1-1/2" | 48.26 | 1.65 | 2.77 | 2.77 | - | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 |
2" | 60.33 | 1.65 | 2.77 | 2.77 | - | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 |
2-1/2" | 73.03 | 2.11 | 3.05 | 3.05 | - | 5.16 | 5.16 | 5.16 | 7.01 | 7.01 |
3" | 88.9 | 2.11 | 3.05 | 3.05 | - | 5.49 | 5.49 | 5.49 | 7.62 | 7.62 |
3-1/2" | 101.6 | 2.11 | 3.05 | 3.05 | - | 5.74 | 5.74 | 5.74 | 8.08 | 8.08 |
4" | 114.3 | 2.11 | 3.05 | 3.05 | - | 6.02 | 6.02 | 6.02 | 8.56 | 8.56 |
5" | 141.3 | 2.77 | 3.40 | 3.40 | - | 6.55 | 6.55 | 6.55 | 9.53 | 9.53 |
6" | 168.28 | 2.77 | 3.40 | 3.40 | - | 7.11 | 7.11 | 7.11 | 10.97 | 10.97 |
8" | 219.08 | 2.77 | 3.76 | 3.76 | 6.35 | 8.18 | 8.18 | 8.18 | 12.70 | 12.70 |
10" | 273.05 | 3.40 | 4.19 | 4.19 | 6.35 | 9.27 | 9.27 | 9.27 | 12.70 | 15.09 |
12" | 323.85 | 3.96 | 4.57 | 4.57 | 6.35 | 9.52 | 10.31 | 9.52 | 12.70 | 17.48 |
14" | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | - | 11.13 | 9.52 | - | 19.05 |
16" | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | - | 12.70 | 9.52 | - | 21.44 |
18" | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | - | 14.27 | 9.52 | - | 23.83 |
20" | 508.0 | 4.78 | 5.54 | 6.35 | 9.52 | - | 15.09 | 9.52 | - | 26.19 |
22" | 558.8 | 4.78 | 5.54 | 6.35 | 9.52 | - | 15.09 | 9.52 | - | 28.58 |
24" | 609.6 | 5.54 | 6.35 | 6.35 | 9.52 | - | 17.48 | 9.52 | - | 30.96 |
26" | 660.4 | - | - | 7.92 | 12.7 | - | 17.48 | 9.52 | - | - |
| Product Name | ASTM A312 Stainless Steel Seamless Tube | |
| Material | Duplex : UNS S31803,UNS S32750, UNS S32760 Austenitic :TP304, TP304L, TP304H, TP309S, TP310S, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347H , 904L, 254SMO Nickel Alloy: Incoloy: 800/800H/800HT 825 926 20 28 201 200 Inconel :718 600 601 625 Hastelloy: C-22 C-276 B-2 B-3 GH3030 GH3039 Cr20Ni80 ; Monel400,K-500 | |
| Standard | ASTM A312,ASTM A213,ASTM A269,ASTM A511, ASTM A789,ASTM A790,EN 10216-5,DIN 17456,DIN14975,GB/T 14976,GB13296, GB5310, GB9948,GOST 9940,GOST 9941,ASTM B161,ASTM B163,ASTM B167,ASTM B407, ASTM B444,ASTM B622,ASTM B677 | |
| Specification | Outer diameter | 6mm-630mm |
| Wall thickness | 1mm-40mm | |
| Length | Single random length/ Double random length or as customer's actual request | |
| Surface | Annealing&Pickling, Polishing180#-600#), Bright Annealing,etc | |
| Markings | Markings will adhere to prescribed specifications in A999/A999M and shall include the NPS or OD and schedule number or average wall thickness, heat number, and NH (when hydrotesting is not performed) and ET (when eddy-current testing is performed) or UT (when ultrasonic testing is performed). The marking shall also include the manufacturer's private identifying mark, the marking requirement of section 12.3 on Hydrostatic or Nondestructive Electric Test, if applicable, and whether seamless (SML), welded (WLD), or heavily cold-worked (HCW). For Grades TP304H, TP316H, TP321H & TP347H, the marking shall also include the heat number and heat-treatment lot identification. | |
| Flattening Test | For material heat treated in a continuous furnace flattening tests shall be made on a sufficient number of pipes to constitute 5% of the lot, but in no case less than 2 lengths of pipe. | |
| Hydrostatic or Nondestructive Testing | Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test | |
| Delivery Time | 1.for ready stock :7 days after receiving the deposit of T/T 2.For MTO: 50 days after receiving the deposit of T/T | |
| Trade Terms | EXW,FOB, CFR, CIF etc. | |
| Loading Port | Ningbo/Wenzhou/Shanghai | |
| Remittance method | TT/LC/CASH | |
| Container | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM Norminal Wall Thickness Wall Thicknesses Schedule ANSI/ASME B36.10M,B36.19M 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM | |
| Application | Widely used in petroleum,foodstuff,chemical industry,construction, electric power,nuclear energy,machinery,shipbuilding,boiler fields and environmental protection industry. | |
| Referenced Documents | ASTM Referenced Standards A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels A370 Test Methods and Definitions for Mechanical Testing of Steel Products A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys A999/A999M Specification for General Requirements for Alloy and Stainless-Steel Pipes A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes E112 Test Methods for Determining Average Grain Size E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) | |
FAQ
1.How many countries you already expeorted?
--We exported stainless steel pipes to more than 30 countries mainly from Egypt,Turkey,India,Iran,Dubai,Thailand,Philippine
2.What is our product range?
--Based on our stainless steel seamless pipe factory, We supply the ONE-STOP service fittings,flanges, valves etc.
3.what is your delivery time?
--It depends on the demanded quantities and your location,nearly in 15-50days.
4. Can you provide OEM service?
--Yes. Welcom to contact us for more details discuss.
5. Can we visit your factory?
--Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
6.How to distinguish 304 and 201 stainless steel?
--1). Specification: the Bai composition is different. 304 has better quality and the price is expensive, but 201 is worse. 304 is imported stainless steel plate and 201 is domestic stainless steel plate.
2). 201 is composed of 17cr-4.5ni-6mn-n which is used for railway vehicles.While 304 is composed of 18cr-9ni, which is used for food production equipment, Xitong chemical equipment, nuclear energy, etc.
3). 201 has high manganese content, bright surface with dark brightness, high manganese content and easy to rust. 304 contains more chromium, the surface is matte and does not rust .The most important thing is that the corrosion resistance is different. The 201 corrosion resistance is not as good as that of 304.
4). The difference between 201 and 304 is the problem of nickel. The 304 nickel's content is more than 201.
5). Stainless steel is not easy to rust because chromium rich oxide is formed on the surface of the steel body to protect the steel body. Material 201 belongs to high manganese stainless steel, which has higher hardness, high carbon and low nickel than 304.
Welcome to our website select other products in your favor.
What is stainless steel seamless tube?
By definition,stainless steel seamless tube are uniform tubes.The superiority of it is more strength, supreme corrosion resistance and the ability to sustain greater pressure.Unlike welded pipes,which are made by welding together two or more pieces of steel,seamless tubes are produced from a single piece of stainless steel billet.Due to these characteristics, seamless tubes can be used in harsh environments.
What are the properties of seamless steel tube?
High precision
Smaller diameter
Relatively dense metal
Good toughness
Strong corrosion resistance
Standards & Grades
Standards | Grades | Standards | Grades |
ASTM | A312,A778,A358,A249,A269,A270, A554,A790,A789,A928 | ASTM/ASME | TP304,TP304L,TP304H,TP316,TP316L,TP321, TP321H,TP310S,TP310H,TP317,TP317L,TP347, TP347H,TP409,TP430,TP444,N08904,S31803, S32205,S32750, S32760 |
JIS | G3459,G3468,G3446,G3463,G3448 | ||
EN | EN 10217-7,EN10312 | EN | 1.4301,1.4306,1.4307,1.4401,1.4404,1.4410, 1.4429,1.4462,1.4541,1.4571, 1.4539, 1.4550 |
DIN | DIN17457,DIN11850 | ||
GB | GB/T12770,GB/T12771,GB/T24593, GB/T19228,GB/T21832 | GB/HG | 12Cr18Ni9,06Cr19Ni10,22Cr19Ni10,07Cr19Ni10,06Cr23Ni13,06Cr25Ni20,06Cr17Ni12Mo2,06Cr19Ni13Mo3,022Cr19Ni13Mo3,06Cr18Ni11Ti,06Cr18Ni11Nb,07Cr18Ni11Nb,022Cr22Ni5Mo3N, 022Cr23Ni5Mo3N,022Cr25Ni7Mo4N |
HG | HG20537.1,HG20537.2,HG20537.3, HG20537.4 | ||
Non-Standard products are available upon customer requirements. Other Grades are available upon customer requirements after PQR. | |||
Outside Diameter&Wall Thickness
STAINLESS STEEL (ASTM /ANSI) | ||||||||||
SIZE | O.D | SCH5S | SCH10S | SCH10 | SCH20S | SCH40S | SCH40 | STD | SCH80S | SCH80 |
1/8" | 10.29 | - | 1.24 | 1.24 | - | 1.73 | 1.73 | 1.73 | 2.41 | 2.41 |
1/4" | 13.72 | - | 1.65 | 1.65 | - | 2.24 | 2.24 | 2.24 | 3.02 | 3.02 |
3/8" | 17.15 | - | 1.65 | 1.65 | - | 2.31 | 2.31 | 2.31 | 3.20 | 3.20 |
1/2" | 21.34 | 1.65 | 2.11 | 2.11 | - | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 |
3/4" | 26.67 | 1.65 | 2.11 | 2.11 | - | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 |
1" | 33.4 | 1.65 | 2.77 | 2.77 | - | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 |
1-1/4" | 42.16 | 1.65 | 2.77 | 2.77 | - | 3.56 | 3.56 | 3.56 | 4.85 | 4.85 |
1-1/2" | 48.26 | 1.65 | 2.77 | 2.77 | - | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 |
2" | 60.33 | 1.65 | 2.77 | 2.77 | - | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 |
2-1/2" | 73.03 | 2.11 | 3.05 | 3.05 | - | 5.16 | 5.16 | 5.16 | 7.01 | 7.01 |
3" | 88.9 | 2.11 | 3.05 | 3.05 | - | 5.49 | 5.49 | 5.49 | 7.62 | 7.62 |
3-1/2" | 101.6 | 2.11 | 3.05 | 3.05 | - | 5.74 | 5.74 | 5.74 | 8.08 | 8.08 |
4" | 114.3 | 2.11 | 3.05 | 3.05 | - | 6.02 | 6.02 | 6.02 | 8.56 | 8.56 |
5" | 141.3 | 2.77 | 3.40 | 3.40 | - | 6.55 | 6.55 | 6.55 | 9.53 | 9.53 |
6" | 168.28 | 2.77 | 3.40 | 3.40 | - | 7.11 | 7.11 | 7.11 | 10.97 | 10.97 |
8" | 219.08 | 2.77 | 3.76 | 3.76 | 6.35 | 8.18 | 8.18 | 8.18 | 12.70 | 12.70 |
10" | 273.05 | 3.40 | 4.19 | 4.19 | 6.35 | 9.27 | 9.27 | 9.27 | 12.70 | 15.09 |
12" | 323.85 | 3.96 | 4.57 | 4.57 | 6.35 | 9.52 | 10.31 | 9.52 | 12.70 | 17.48 |
14" | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | - | 11.13 | 9.52 | - | 19.05 |
16" | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | - | 12.70 | 9.52 | - | 21.44 |
18" | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | - | 14.27 | 9.52 | - | 23.83 |
20" | 508.0 | 4.78 | 5.54 | 6.35 | 9.52 | - | 15.09 | 9.52 | - | 26.19 |
22" | 558.8 | 4.78 | 5.54 | 6.35 | 9.52 | - | 15.09 | 9.52 | - | 28.58 |
24" | 609.6 | 5.54 | 6.35 | 6.35 | 9.52 | - | 17.48 | 9.52 | - | 30.96 |
26" | 660.4 | - | - | 7.92 | 12.7 | - | 17.48 | 9.52 | - | - |
| Product Name | ASTM A312 Stainless Steel Seamless Tube | |
| Material | Duplex : UNS S31803,UNS S32750, UNS S32760 Austenitic :TP304, TP304L, TP304H, TP309S, TP310S, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347H , 904L, 254SMO Nickel Alloy: Incoloy: 800/800H/800HT 825 926 20 28 201 200 Inconel :718 600 601 625 Hastelloy: C-22 C-276 B-2 B-3 GH3030 GH3039 Cr20Ni80 ; Monel400,K-500 | |
| Standard | ASTM A312,ASTM A213,ASTM A269,ASTM A511, ASTM A789,ASTM A790,EN 10216-5,DIN 17456,DIN14975,GB/T 14976,GB13296, GB5310, GB9948,GOST 9940,GOST 9941,ASTM B161,ASTM B163,ASTM B167,ASTM B407, ASTM B444,ASTM B622,ASTM B677 | |
| Specification | Outer diameter | 6mm-630mm |
| Wall thickness | 1mm-40mm | |
| Length | Single random length/ Double random length or as customer's actual request | |
| Surface | Annealing&Pickling, Polishing180#-600#), Bright Annealing,etc | |
| Markings | Markings will adhere to prescribed specifications in A999/A999M and shall include the NPS or OD and schedule number or average wall thickness, heat number, and NH (when hydrotesting is not performed) and ET (when eddy-current testing is performed) or UT (when ultrasonic testing is performed). The marking shall also include the manufacturer's private identifying mark, the marking requirement of section 12.3 on Hydrostatic or Nondestructive Electric Test, if applicable, and whether seamless (SML), welded (WLD), or heavily cold-worked (HCW). For Grades TP304H, TP316H, TP321H & TP347H, the marking shall also include the heat number and heat-treatment lot identification. | |
| Flattening Test | For material heat treated in a continuous furnace flattening tests shall be made on a sufficient number of pipes to constitute 5% of the lot, but in no case less than 2 lengths of pipe. | |
| Hydrostatic or Nondestructive Testing | Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test | |
| Delivery Time | 1.for ready stock :7 days after receiving the deposit of T/T 2.For MTO: 50 days after receiving the deposit of T/T | |
| Trade Terms | EXW,FOB, CFR, CIF etc. | |
| Loading Port | Ningbo/Wenzhou/Shanghai | |
| Remittance method | TT/LC/CASH | |
| Container | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM Norminal Wall Thickness Wall Thicknesses Schedule ANSI/ASME B36.10M,B36.19M 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM | |
| Application | Widely used in petroleum,foodstuff,chemical industry,construction, electric power,nuclear energy,machinery,shipbuilding,boiler fields and environmental protection industry. | |
| Referenced Documents | ASTM Referenced Standards A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels A370 Test Methods and Definitions for Mechanical Testing of Steel Products A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys A999/A999M Specification for General Requirements for Alloy and Stainless-Steel Pipes A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes E112 Test Methods for Determining Average Grain Size E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) | |
FAQ
1.How many countries you already expeorted?
--We exported stainless steel pipes to more than 30 countries mainly from Egypt,Turkey,India,Iran,Dubai,Thailand,Philippine
2.What is our product range?
--Based on our stainless steel seamless pipe factory, We supply the ONE-STOP service fittings,flanges, valves etc.
3.what is your delivery time?
--It depends on the demanded quantities and your location,nearly in 15-50days.
4. Can you provide OEM service?
--Yes. Welcom to contact us for more details discuss.
5. Can we visit your factory?
--Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
6.How to distinguish 304 and 201 stainless steel?
--1). Specification: the Bai composition is different. 304 has better quality and the price is expensive, but 201 is worse. 304 is imported stainless steel plate and 201 is domestic stainless steel plate.
2). 201 is composed of 17cr-4.5ni-6mn-n which is used for railway vehicles.While 304 is composed of 18cr-9ni, which is used for food production equipment, Xitong chemical equipment, nuclear energy, etc.
3). 201 has high manganese content, bright surface with dark brightness, high manganese content and easy to rust. 304 contains more chromium, the surface is matte and does not rust .The most important thing is that the corrosion resistance is different. The 201 corrosion resistance is not as good as that of 304.
4). The difference between 201 and 304 is the problem of nickel. The 304 nickel's content is more than 201.
5). Stainless steel is not easy to rust because chromium rich oxide is formed on the surface of the steel body to protect the steel body. Material 201 belongs to high manganese stainless steel, which has higher hardness, high carbon and low nickel than 304.
Welcome to our website select other products in your favor.
