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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
What are the uses of seamless tubing?
Chemical injection
Heat Exchanger
Sub-sea safety valves
Oil&gas
Petrochemicals
Pulp and paper
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 | - | - |
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
What are the uses of seamless tubing?
Chemical injection
Heat Exchanger
Sub-sea safety valves
Oil&gas
Petrochemicals
Pulp and paper
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 | - | - |
