Customization: | Available |
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Application: | Automotive Industry, Chemical Industry, Food Industry, Oil and Gas Industry, Pharmaceutical Industry |
Certification: | ISO9001 |
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Stainless steel pipes can be divided into many varieties, such as stainless steel seamless pipes, stainless welded steel pipes, stainless steel capillary pipes, etc. Stainless steel pipe has the advantages of corrosion resistance and high temperature resistance, which determines its wide application in industry. For example, stainless steel pipes are used in the chemical and petroleum industries.
Sometimes, stainless steel seamless pipes used in factories may have grease on them. These greases may affect the sealing performance of seamless pipes. Therefore, many factories will choose different methods for degreasing.
The purpose of degreasing stainless steel seamless pipes
Stainless steel pipes for the chemical and petroleum industries are degreased according to special requirements. The purpose of degreasing is to avoid handling of degreased or stored materials in situations where oils or organic materials could cause an explosion, and to avoid mixing of stored oils and organic materials. In order to ensure the activity of the degreasing catalyst, the content of grease can also be controlled. In addition, degreasing controls the oil and organic matter content to ensure the purity of the product. No matter how many advantages stainless steel pipes have, the installed stainless steel pipes must be degreased section by section. If the stainless steel pipe cannot be disassembled, it should be degreased before installation. Stainless steel pipes with obvious oil stains or serious corrosion should be cleaned by steam blowing, sandblasting or other methods before degreasing.
Degreasing solvent
When choosing a degreasing solvent, the following factors should be considered:
1. Degreasing effect: The degreasing solvent should have a good degreasing effect and be able to completely remove grease and stains on the surface of the steel pipe.
2. Environmental protection: The degreasing solvent should have good environmental protection, contain no harmful substances, and be harmless to the human body and the environment.
3. Safety: The degreasing solvent should have good safety and be non-flammable, explosive and corrosive.
Stainless steel pipes can be skimmed using organic solvents (dichloroethylene, trichlorethylene, solvents, benzene, carbon tetrachloride, industrial alcohol, acetone, etc.), concentrated nitric acid or alkali liquid. Industrial dichloroethane is suitable for metal degreasing. Industrial carbon tetrachloride is suitable for degreasing ferrous metal and non-metallic parts. Trichlorethylene is suitable for degreasing metal and non-ferrous metal parts, and 88% concentrated nitric acid is suitable for degreasing pipe parts and ceramic rings of concentrated nitric acid equipment.
When the outer surface of the stainless steel pipe is covered with dirt, the dirt should be removed with water and allowed to dry naturally. Then wipe it with a dry cloth dampened with degreaser and let dry. When degreasing stainless steel pipes, you can tightly plug one end of the pipe with a cork or use other methods to close it. Place the stainless steel pipe in a flat, clean place with sleepers or a workbench and soak it for 60-80 minutes. Rotate it every 20 minutes. Valves, gaskets and other accessories should also be pickled separately and degreased.
Product Name | Stainless Steel Seamless Pipes /Tubes Труба Сталь конструкционная криогенная Tubería de acero inoxidable sin costura Tubos de Aço Inoxidável sem Costura Tubo INOXIDABLE SIN COSTURA |
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Company Inform | • Name:WENZHOU GUOHAO STEEL., LTD • Type: Manufacturer |
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Material | Austenitic: TP304, TP304L, TP304H, TP309S, TP310S, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347H , 904L, 254SMO GOST Grade: 08х18н10т,12х18н10т(AISI 321), 10х17н13м2т(AISI 316Ti), 20х23н18(AISI 310S), 06хн28мдт(AISI 904L), 08х18н10(AISI304) EN Grade: 1.4301,1.4306,1.4311,1.4541,1.4401,1.4404,1.4550,1.4571,1.4429,1.4435,1.4436,1.4439 |
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Duplex Stainless: UNS S31803,UNS S2205,UNS S32750, UNS S32760 |
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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 |
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Standard | • ASTM A312,ASTM A213,ASTM A269,ASTM A511,ASTM A789,ASTM A790 • ASTM B161 B163 B165 B167 B407 B423 B444 B622 B677 B729 B983 • EN 10216-5,DIN 17456 • GB/T 14976,GB13296,GB/T 21833,GB/T 15011,GB/T 15062 • GOST 9940,GOST 9941 |
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Specification![]() |
D(Outer Diameter) | • 6mm-630mm • 1/8inch-24inch |
T(Wall Thickness) | • 0.89mm-40mm • SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS • 10 BWG, 12 BWG, 14 BWG , 16 BWG, 18 BWG, 20 BWG • 10 SWG, 12 SWG, 14 SWG , 16 SWG, 18 SWG, 20 SWG |
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L(Length) | • Random length 5~7m • Fixed length 6m /6.096m /6.1m/12m • or as customer's actual request |
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Surface | • Annealing&Pickling • Polishing(180#-600#) • Bright Annealing • Sand Blasting • Shot Blasting |
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Pipe End |
• Plain End (PE)
• Bevelled End (BE) • Threaded End (TE) |
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Markings | GH-STEEL S.S SMLS PIPE ASTM A312 TP304L 2" SCH40S 6MTR HEAT NO.*********** 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. |
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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 | |
Value Added Services | Customize Length, Bending, Polishing, Shot Blasting, Drilling/Punching, Degreasing(Oil free | |
Delivery Time |
• For ready stock :7 days after receiving the deposit of T/T
• For MTO: 35 days after receiving the deposit of T/T |
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Trade Terms | EXW,FOB,FCA, 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 • 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM |
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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) |
Chemical Composition (%) | Mechanical Performance | ||||||||||||||
Grade | C | Mn | P | S | Si | Cr | Ni | Mo | N | Ti | Others | Mpa (kgf/mm²) | Elongation .(%) em 2" (min.) | Hardness | |
(AISI) | (max.) | (max.) | (max) | (max.) | (max.) | (min.) | (min.) | (min.) | (min.) | (min.) | HRB | ||||
(max.) | (max.) | (max.) | (max.) | (max.) | Tensile strength (min.) | Yield strength (min.) | (max.) | ||||||||
304 | 0,080 | 2,0 | 0,045 | 0,030 | 1,00 | 18,0 | 8,0 | 515 | 205 | 35 | 90 | ||||
20,0 | 11,0 | ||||||||||||||
304L | 0,035 | 2,00 | 0,045 | 0,030 | 1,00 | 18,0 | 8,0 | 485 | 170 | 35 | 90 | ||||
20,0 | 13,0 | ||||||||||||||
304H | 0,040 | 2,00 | 0,045 | 0,030 | 1,00 | 18,0 | 8,0 | 515 | 205 | 35 | 90 | ||||
0,100 | 20,0 | 11,0 | |||||||||||||
309S | 0,080 | 2,00 | 0,045 | 0,030 | 1,00 | 22,0 | 12,0 | 0,75 | 515 | 205 | 35 | 90 | |||
24,0 | 15,0 | ||||||||||||||
310 | 0,150 | 2,00 | 0,045 | 0,030 | 1,00 | 24,0 | 19,0 | 515 | 205 | 35 | 90 | ||||
26,0 | 22,0 | ||||||||||||||
310S | 0,080 | 2,00 | 0,045 | 0,030 | 1,00 | 24,0 | 19,0 | 0,75 | 515 | 205 | 35 | 90 | |||
26,0 | 22,0 | ||||||||||||||
310H | 0,040 | 2,00 | 0,045 | 0,030 | 1,00 | 24,0 | 19,0 | 515 | 205 | 35 | 90 | ||||
0,100 | 26,0 | 22,0 | |||||||||||||
314 | 0,200 | 2,00 | 0,045 | 0,015 | 1,50 | 24,0 | 19,0 | 0,11 | 515 | 205 | 35 | 90 | |||
2,50 | 26,0 | 22,0 | |||||||||||||
316 | 0,080 | 2,00 | 0,045 | 0,030 | 1,00 | 16,0 | 11,0 | 2,00 | 515 | 205 | 35 | 90 | |||
18,0 | 14,0 | 3,00 | |||||||||||||
316H | 0,040 | 2,00 | 0,045 | 0,030 | 1,00 | 16,0 | 11,0 | 2,00 | 515 | 205 | 35 | 90 | |||
0,100 | 18,0 | 14,0 | 3,00 | ||||||||||||
316L | 0,035 | 2,00 | 0,045 | 0,030 | 1,00 | 16,0 | 10,0 | 2,00 | 485 | 170 | 35 | 90 | |||
18,0 | 14,0 | 3,00 | |||||||||||||
316Ti | 0,080 | 2,00 | 0,045 | 0,030 | 0,75 | 16,0 | 10,0 | 2,00 | 0,10 max | 5x(C+N)-0,70 | 515 | 205 | 35 | 90 | |
18,0 | 14,0 | 3,00 | |||||||||||||
317L | 0,035 | 2,00 | 0,045 | 0,030 | 1,00 | 18,0 | 11,0 | 3,00 | 515 | 205 | 35 | 90 | |||
20,0 | 15,0 | 4,00 | |||||||||||||
321 | 0,080 | 2,00 | 0,045 | 0,030 | 1,00 | 17,0 | 9,0 | 0,10 max | 5x(C+N)-0,70 | 515 | 205 | 35 | 90 | ||
19,0 | 12,0 | ||||||||||||||
321H | 0,040 | 2,00 | 0,045 | 0,030 | 1,00 | 17,0 | 9,0 | 0,10 max | 4x(C+N)-0,70 | 515 | 205 | 30 | 90 | ||
0,100 | 19,0 | 12,0 | |||||||||||||
347 | 0,080 | 2,00 | 0,045 | 0,030 | 1,00 | 17,0 | 9,0 | Nb:10xC-1,00 | 515 | 205 | 35 | 90 | |||
19,0 | 13,0 | ||||||||||||||
347H | 0,040 | 2,00 | 0,045 | 0,030 | 1,00 | 17,0 | 9,0 | Nb:8xC-1,00 | 515 | 205 | 35 | 90 | |||
0,100 | 19,0 | 13,0 | |||||||||||||
S31254 254SMO |
0,020 | 1,00 | 0,030 | 0,030 | 0,08 | 19,50 | 17,50 | 6,00 | 0,18 | Cu:0,50-1,00 | t≤5mm 675 | t≤5mm 315 | 35 | 90 | |
20,50 | 18,50 | 6,50 | 0,25 | t>5mm 655 | t>5mm 310 | ||||||||||
904L | 0,020 | 2,00 | 0,040 | 0,030 | 1,00 | 19,00 | 23,00 | 4,00 | 0,10 max | Cu:1,00-2,00 | 490 | 215 | 90 | ||
UNS 8904 | 23,00 | 28,00 | 5,00 | ||||||||||||
UNS31803 | 0,030 | 2,00 | 0,030 | 0,020 | 1,00 | 21,00 | 4,50 | 2,50 | 0,080 | 620 | 450 | 25 | HRC 30 | ||
23,00 | 6,50 | 3,50 | 0,20 | ||||||||||||
UNS32205 | 0,030 | 2,00 | 0,030 | 0,020 | 1,00 | 22,00 | 4,50 | 3,00 | 0,14 | 655 | 485 | 25 | HRC 30 | ||
23,00 | 6,50 | 3,50 | 0,20 | ||||||||||||
SUPER DUPLEX UNS32750 | 0,030 | 1,20 | 0,035 | 0,020 | 0,80 | 24,00 | 6,00 | 3,00 | 0,24 | Cu: 0,50 max | 800 | 550 | 15 | HRC 34 | |
26,00 | 8,00 | 5,00 | 0,32 | ||||||||||||
SUPER DUPLEX UNS32760 | 0,030 | 1,00 | 0,030 | 0,010 | 1,000 | 24,00 | 6,00 | 3,00 | 0,20 | Cu:0,50-1,00 | 750 | 550 | 25 | HRC 32 | |
26,00 | 8,00 | 4,00 | 0,30 | W:0,50-1,00 |
Norminal Pipe Size | Outside Diameter | Wall Thicknesses Schedule ANSI/ASME B36.10M,B36.19M | ||||||||||||||||
DN(in.) | D | sch5s | sch10s | sch10 | sch20 | sch30 | sch40s | STD | sch40 | sch60 | sch80s | XS | sch80 | sch100 | sch120 | sch140 | sch160 | XXS |
1/8 | 10.3 | --- | 1.24 | --- | --- | --- | 1.73 | 1.73 | 1.73 | --- | 2.41 | 2.41 | 2.41 | --- | --- | --- | --- | --- |
1/4 | 13.7 | --- | 1.65 | --- | --- | --- | 2.24 | 2.24 | 2.24 | --- | 3.02 | 3.02 | 3.02 | --- | --- | --- | --- | --- |
3/8 | 17.1 | --- | 1.65 | --- | --- | --- | 2.31 | 2.31 | 2.31 | --- | 3.2 | 3.2 | 3.2 | --- | --- | --- | --- | --- |
1/2 | 21.3 | 1.65 | 2.11 | --- | --- | --- | 2.77 | 2.77 | 2.77 | --- | 3.73 | 3.73 | 3.73 | --- | --- | --- | 4.78 | 7.47 |
3/4 | 26.7 | 1.65 | 2.11 | --- | --- | --- | 2.87 | 2.87 | 2.87 | --- | 3.91 | 3.91 | 3.91 | --- | --- | --- | 5.56 | 7.82 |
1 | 33.4 | 1.65 | 2.77 | --- | --- | --- | 3.38 | 3.38 | 3.38 | --- | 4.55 | 4.55 | 4.55 | --- | --- | --- | 6.35 | 9.09 |
1¼ | 42.2 | 1.65 | 2.77 | --- | --- | --- | 3.56 | 3.56 | 3.56 | --- | 4.85 | 4.85 | 4.85 | --- | --- | --- | 6.35 | 9.7 |
1½ | 48.3 | 1.65 | 2.77 | --- | --- | --- | 3.68 | 3.68 | 3.68 | --- | 5.08 | 5.08 | 5.08 | --- | --- | --- | 7.14 | 10.15 |
2 | 60.3 | 1.65 | 2.77 | --- | --- | --- | 3.91 | 3.91 | 3.91 | --- | 5.54 | 5.54 | 5.54 | --- | --- | --- | 8.74 | 11.07 |
2½ | 73 | 2.11 | 3.05 | --- | --- | --- | 5.16 | 5.16 | 5.16 | --- | 7.01 | 7.01 | 7.01 | --- | --- | --- | 9.53 | 14.02 |
3 | 88.9 | 2.11 | 3.05 | --- | --- | --- | 5.49 | 5.49 | 5.49 | --- | 7.62 | 7.62 | 7.62 | --- | --- | --- | 11.13 | 15.24 |
3½ | 101.6 | 2.11 | 3.05 | --- | --- | --- | 5.74 | 5.74 | 5.74 | --- | 8.08 | 8.08 | 8.08 | --- | --- | --- | --- | --- |
4 | 114.3 | 2.11 | 3.05 | --- | --- | --- | 6.02 | 6.02 | 6.02 | --- | 8.56 | 8.56 | 8.56 | --- | 11.13 | --- | 13.49 | 17.12 |
5 | 141.3 | 2.77 | 3.4 | --- | --- | --- | 6.55 | 6.55 | 6.55 | --- | 9.53 | 9.53 | 9.53 | --- | 12.7 | --- | 15.88 | 19.05 |
6 | 168.3 | 2.77 | 3.4 | --- | --- | --- | 7.11 | 7.11 | 7.11 | --- | 10.97 | 10.97 | 10.97 | --- | 14.27 | --- | 18.26 | 21.95 |
8 | 219.1 | 2.77 | 3.76 | --- | 7.04 | 8.18 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 | |
10 | 273.1 | 3.4 | 4.19 | --- | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 25.4 | 28.58 | 25.4 | |
12 | 323.9 | 3.96 | 4.57 | --- | 6.35 | 8.38 | 9.53 | 9.53 | 10.31 | 14.27 | 12.7 | 12.7 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 |
14 | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | --- | 9.53 | 11.13 | 15.09 | --- | 12.7 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | |
16 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | --- | 9.53 | 12.7 | 16.66 | --- | 12.7 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | |
18 | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | --- | 9.53 | 14.27 | 19.05 | --- | 12.7 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | |
20 | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | --- | 9.53 | 15.09 | 20.62 | --- | 12.7 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | |
22 | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | --- | 9.53 | --- | 22.23 | --- | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | |
24 | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | --- | 9.53 | 17.48 | 24.61 | --- | 12.7 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | |
26 | 660.4 | --- | --- | 7.92 | 12.7 | --- | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
28 | 711.2 | --- | --- | 7.92 | 12.7 | 15.88 | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
30 | 762 | 6.35 | 7.92 | 7.92 | 12.7 | 15.88 | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
32 | 812.8 | --- | --- | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | --- | --- | 12.7 | ||||||
34 | 863.6 | --- | --- | 7.92 | 12.7 | 15.88 | 17.48 | 9.53 | 17.48 | --- | --- | 12.7 | ||||||
36 | 914.4 | --- | --- | 7.92 | 12.7 | 15.88 | 19.05 | 9.53 | 19.05 | --- | --- | 12.7 | ||||||
38 | 965.2 | --- | --- | --- | --- | --- | --- | 9.53 | --- | --- | --- | 12.7 | Note: sch5s,10s,40s,80s Used for steel pipe fittings | |||||
40 | 1016 | --- | --- | --- | --- | --- | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
42 | 1066.8 | --- | --- | --- | --- | --- | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
44 | 1117.6 | --- | --- | --- | --- | --- | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
46 | 1168.4 | --- | --- | --- | --- | --- | --- | 9.53 | --- | --- | --- | 12.7 | ||||||
48 | 1219.2 | --- | --- | --- | --- | --- | --- | 9.53 | --- | --- | --- | 12.7 |
Outside Diameter | BWG | ||||||||
25 | 22 | 20 | 18 | 16 | 14 | 12 | 10 | ||
Wall Thickness mm | |||||||||
0.508 | 0.71 | 0.89 | 1.24 | 1.65 | 2.11 | 2.77 | 3.40 | ||
mm | inch | Weight kg/m | |||||||
6.35 | 1/4 | 0.081 | 0.109 | 0.133 | 0.174 | 0.212 | |||
9.53 | 3/8 | 0.126 | 0.157 | 0.193 | 0.257 | 0.356 | 0.429 | ||
12.7 | 1/2 | 0.214 | 0.263 | 0.356 | 0.457 | 0.612 | 0.754 | ||
15.88 | 5/8 | 0.271 | 0.334 | 0.455 | 0.588 | 0.796 | 0.995 | ||
19.05 | 3/4 | 0.327 | 0.405 | 0.553 | 0.729 | 0.895 | 1.236 | ||
25.4 | 1 | 0.44 | 0.546 | 0.75 | 0.981 | 1.234 | 1.574 | 2.05 | |
31.75 | 1 1/4 | 0.554 | 0.688 | 0.947 | 1.244 | 1.574 | 2.014 | 2.641 | |
38.1 | 1 1/2 | 0.667 | 0.832 | 1.144 | 1.514 | 1.904 | 2.454 | 3.233 | |
44.5 | 1 3/4 | 1.342 | 1.774 | 2.244 | 2.894 | 3.5 | |||
50.8 | 2 | 1.549 | 2.034 | 2.574 | 3.334 | 4.03 | |||
63.5 | 2 1/2 | 1.949 | 2.554 | 3.244 | 4.214 | 5.13 | |||
76.2 | 3 | 2.345 | 3.084 | 3.914 | 5.094 | 6.19 | |||
88.9 | 3 1/2 | 2.729 | 3.609 | 4.584 | 5.974 | 7.27 | |||
101.6 | 4 | 4.134 | 5.254 | 6.854 | 8.35 | ||||
114.3 | 4 1/2 | 4.654 | 5.924 | 7.734 | 9.43 | ||||
Stainless Steel Tube: A/SA213, A/SA269, A/SA789, EN10216-5, GOST9941-81. |
Summary | Standards |
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes | ASTM A 213 / A 213M |
Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service | ASTM A269 / A 269N |
Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes | ASTM A312/A312M |
Standard Specification for Seamless Stainless Steel Mechanical Tubing and Hollow Bar | ASTM A511 / A 511M |
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service | ASTM A789/A789M |
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe | ASTM A790/A790M |
Standard Specification For Seamless Stainless Steel Tubes,cold and hot finished | GOST9941-81 |
Standard Specification For Seamless Stainless Steel Tube for Pressure purposes | EN 10216-5 |
Standard | Outside Diameter Tolerance(mm) | Thickness Tolerance(mm) | Length Tolerance (mm) | |||
ASTM A269 | D<12.7 | ±0.13 | ±15% | +3.2 / -0 | ||
(12.7~38.1] | ±0.13 | ±10% | ||||
[38.1~88.9) | ±0.25 | +4.8 / -0 | ||||
[88.9~139.7) | ±0.38 | |||||
[139.7~203.2) | ±0.76 | |||||
ASTM A213 | D<25.4 | ±0.1 | D≤38.1 | +20%/ -0% | D≤50.80 | +3 / -0 |
[25.4~38.1] | ±0.15 | |||||
(38.1~50.8) | ±0.2 | D>38.1 | +22%/ -0% | D>50.8 | +5 / -0 | |
[50.8~63.5) | ±0.25 | |||||
[63.5~76.2) | ±0.30 | |||||
[76.2~101.6] | ±0.38 | |||||
(101.6~190.5] | +0.38 / -0.64 | |||||
(190.5~228.6] | +0.38 / -1.14 | |||||
ASTM A312 | [10.29~48.26] | +0.4 / -0.8 | 10.3~73 | +20% / -12.5% | +6 / -0 | |
88.9~457 T/D≤5% | +22.5% / -12.5% | |||||
(48.26~114.30] | ±0.80 | 88.9~457 T/D>5% | +15% / -12.5% | |||
(114.30~219.08] | +1.6 / -0.8 | 508above T/D<5% | +22.5% /-12.5% | |||
(219.08~457.20] | +2.4 / -0.8 | 508above T/D>5% | +15%/-12.5% | |||
ASTM A789 | D<12.7 | ±0.13 | ±15% | +3 / -0 | ||
[12.7 to 38.1) | ±0.13 | ±10% | ||||
[38.1 to 88.9) | ±0.25 | +5 / -0 | ||||
[88.9 to 139.7) | ±0.38 | |||||
[139.7 to 203.2) | ±0.76 | |||||
ГОСТ 9941-81 | [5~10] | Normal:±0.30 High:±0.20 Higher:±0.15 |
T:0.2 | Normal:±0.05; High:±0.03 |
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T:0.3~0.4 | Normal:±0.07; High:±0.05 |
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T:0.5~1.0 | Normal:±0.15; High:±0.10 |
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[11~30] | Normal:±0.40 High:±0.30 Higher:±0.20 |
T:1.2~3.0 | Normal:+12.5% / -15%; High:±12.5%; Higher:+12.5% / -10% |
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T:3.5~7.0 | Normal:±12.5%; High:+12.5% / -10%; Higher:±10% |
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[32~95] | Normal:±1.2% High:±1% Higher:±0.8% |
T:7.5~8.5 | Normal:+12.5% / -10%; Higher:±10% |
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EN10216-5 | D3 | ±0.75% / ±0.30mm | T3 | ±10%/ ±0.20mm | L≤6m | +5 +0 |
D4 | ±0.5% / ±0.10mm | T4 | ±7.5% / ±0.15mm | ≥6~12M | +10-0 |
1.Q: Do you provide customized product services?
A: Of course, we can design and produce the products you need based on your specifications and drawings. For example: special dimensions, special controls, OEM, etc.
2.Q: Are you a manufacturer or trader?
A: We are manufacturers. We have our own factory to produce and process various kinds of stainless steel /nickel alloy pipes.
3.Q: Can we get the some samples?Is there a charge?
A: Yes, we will provide you with the samples you want. The samples are free of charge, but the customer may have to pay the freight.
4.Q: Can we visit your factory?
A: Of course, we welcome you to visit our factory on-site or visit our production line through online videos to learn more about our strength and quality. Once we have your schedule, we will arrange a professional sales team to follow up with you.
5.Q: How do you ensure the quality of the product?
A: All products must undergo three inspections throughout the entire manufacturing process, including production, cutting, and packaging. The factory inspection report is provided with the goods. If necessary, third-party inspections such as SGS can be accepted.
6.Q: What is your delivery time?
A: Different products and procurement quantities have different delivery times. The product will be delivered as soon as possible on the basis of quality assurance. Usually, if the goods are in stock, it takes 3-10 days. Alternatively, if the goods are out of stock, it will take 25 to 45 days.
7.Q: Can you arrange shipment?
A: Of course, we have freight forwarders who have been cooperating for many years. We are VIP and can provide you with the most favorable prices and professional services.
8.Q: What if I don't have import experience?
A: We have rich export experience. As long as you have an import license, please leave the rest to us! We will help you choose the most suitable transportation service to safely and accurately deliver the product to the place where it is needed.