Wenzhou Kaixin Kaixin Metal Co., Ltd.
Stainless steel welded tube is a type of tubing made from stainless steel that has been welded together at the seam. It is commonly used in applications where high strength, durability, and resistance to corrosion are required, such as in the construction of pressure vessels, heat exchangers, and piping systems.The manufacturing process for stainless steel welded tubes involves first forming a flat strip of stainless steel into a tube shape. The edges of the strip are then heated to a high temperature and fused together using an electric current or a high-energy beam. This process creates a strong, continuous seam along the length of the tube.
Tubo soldado de acero inoxidable is available in a variety of sizes, wall thicknesses, and grades of stainless steel, including austenitic, ferritic, and duplex grades. The choice of grade and wall thickness will depend on the specific application and the required mechanical properties of the tubing.
Table of Content：
- Specification and Sizeof Stainless Steel Welded tube
- Aplicaciones of Stainless Steel Welded tube
- Types Of Stainless Steel Welded Tubes
- SS WELDED TUBING OD TOLERANCE & WALL THICKNESS TOLERANCE CHART
- Chemical Properties of Stainless Steel Tubo soldado
- Mechanical Properties of Stainless Steel Tubo soldado
- SS WELDED TUBE PRESSURE RATING
Specification and Size of Stainless Steel Welded tube
Available Specification
| Nombre del producto | Estándar Ejecutivo | Dimensión | Código del acero / Calidad del acero |
| Tuberías industriales | ASTM A312, A358, A778 JIS G3459 | Diámetro exterior: 1/4″ a 40″ WT: SCH5S~SCH80S | TP304, TP304L, TP316L, SUS304TP |
| Tubos para calderas e intercambiadores de calor, tubería para uso general | ASTM A249, A269, JIS G3463 | Diámetro exterior: 15,9~139,8 mm Espesor: 1,6~5,0 mm | TP304, TP304L, TP316L, SUS304TB |
| Tubos mecánicos y estructurales | ASTM A554, JIS G3446 | Diámetro exterior: 7,9~152,4 mm Espesor: 0,5~6,5 mm | MT304, MT304L, MT316L, MT430, grados 201 y 202, según la norma STD SUS304 de la fábrica |
| Tubos cuadrados | ASTM A554 | Dimensiones exteriores: 12,7 × 12,7 ~ 150 × 150 mm Espesor: 0,7~6,5 mm | MT304, MT304L, MT316L, MT430, grados 201 y 202, según las normas del fabricante |
| Tubos rectangulares | ASTM A554 | Dimensiones exteriores: 10 × 20 a 100 × 200 mm Espesor: 0,7~6,5 mm | MT304, MT304L, MT316L, MT430, grados 201 y 202, según las normas del fabricante |
| Tubos sanitarios | ASTM A270 JIS G3447 | Diámetro exterior: 25,4~165,2 mm WT: 0,8~3,05 mm | TP304, TP304L, TP316L, SUS304TBS |
| Tuberías de gran diámetro para instalaciones de tubería comunes | JIS G3448 | Diámetro exterior: 15,88~318,5 mm Espesor: 0,8 a 3,0 mm | SUS304TPD |
| Tuberías de gran diámetro | JIS G3468 | Diámetro exterior: 14″ a 40″ WT: SCH5S~SCH40S | SUS304TPY |
Aplicaciones of Stainless Steel Welded tube
Stainless Steel Welded tube are being found in an extensive range of applications such as in Oil & Gas, Refinery, Petrochemical, Chemical, Fertilizer, Power, Automotive, Bearing, Mechanical & Structural applications.
Types Of Stainless Steel Welded Tubes
- Stainless Steel Welded Tubes
- SS Welded Tubes
- Stainless Steel ERW Tubes
- SS ERW Tubes
- ASTM A249 Stainless Steel Welded Tubes
- SS Welded Tubes Price in Bengaluru
- ASTM A249 Stainless Steel Welded Tubing Suppliers in Thane
- Stainless Steel Welded Tubes Stockist in Dahej
- AISI SS Welded Tubes
- SS Welded Tubing
- ASME Stainless Steel ERW Tubes
- SS ERW Tubing
- AISI Stainless Steel Welded Tubes
- SS Welded Tubes Suppliers in Ankleshwar
- Stainless Steel ERW Tubing Stockholder in Pune
- Stainless Steel Welded Tubes Manufacturer in Hyderabad
SS WELDED TUBING OD TOLERANCE & WALL THICKNESS TOLERANCE CHART
| Stainless Steel Welded Tube OD Tolerance | ||||
| NPS | + | – | ||
| pulgada | mm | pulgada | mm | |
| 1/8~1 1 /2 > 1 1/2~4 > 4~8 > 8~18 > 18~26 > 26~34 > 34~48 | 1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) | 0.4 0.8 1.6 2.4 3.2 4.0 4.8 | 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) | 0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
| NPS | Stainless Steel Tube Wall Thickness Tolerance, % | |
| + | – | |
| 1/8-2 1 /2 | 20.0 | 12.5 |
| 3~18, t/D ≤ 5% | 22.5 | 12.5 |
| 3~18, t/D > 5% | 15.0 | 12.5 |
| ≥ 20, soldado | 17.5 | 12.5 |
| ≥ 20, sin costuras, t/D ≤ 5% | 22.5 | 12.5 |
| ≥ 20, sin costuras, t/D > 5% | 15.0 | 12.5 |
Chemical Properties of Stainless Steel Tubo soldado
Chemical Composition (For Reference)
JIS Specification
Spec.JISG4303,G4304,G4305,G4312
| Steel Grade | C% Max. | Si% Max. | Mn% Max. | P% Max. | S% Max. | Cr% Max. | Ni% Max. | Mo% Max. | Ti% Max. | Otros |
| SUS 201 | 0.15 | 1.0 | 5.5~7.5 | 0.06 | 0.03 | 16.0~18.0 | 3.5~5.5 | – | – | N:0.25 |
| SUS 202 | 0.15 | 1.0 | 7.5~10.0 | 0.06 | 0.03 | 17.0~19.0 | 4.0~6.0 | – | – | N:0.25 |
| SUS 304 | 0.08 | 1.0 | 2.0 | 0.045 | 0.03 | 18.0~20.0 | 8.0~10.5 | – | – | – |
| SUS 304L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 18.0~20.0 | 9.0~13.0 | – | – | Cu:1.0~3.0 |
| SUS 316L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0~18.0 | 12.0~15.0 | 2.0~3.0 | – | – |
| SUS 430 | 0.12 | 0.75 | 1.0 | 0.04 | 0.03 | 16.0~18.0 | – | – | – | – |
Mechanical Properties of Stainless Steel Tubo soldado
Mechanical Property (For Reference)
JIS Specification
Spec.JISG4303,G4304,G4305,G4312
| Steel Grade | N/mm 2 MIN. Tensile Stress | N/mm 2 MIN. Prueba de estrés | Elongation MIN. | HRB MAX. Hardness | Bendability:Bending Angle | Bendability:Inside Radius |
| SUS 201 | 520 | 275 | 40 | 100 | No Require | – |
| SUS 202 | 520 | 275 | 40 | 95 | No Require | – |
| SUS 304 | 520 | 205 | 40 | 90 | No Require | – |
| SUS 304L | 480 | 175 | 40 | 90 | No Require | – |
| SUS 316L | 480 | 175 | 40 | 90 | No Require | – |
| SUS 430 | 450 | 205 | 22 | 88 | 180° | 1.0 time the thickness |
SS WELDED TUBE PRESSURE RATING
| OD inches | Ave. Wall inches | Min Yield Strength (PSI) | Min Tensile Strength (PSI) | Theoretical Burst Pressure * (PSI) | Working Pressure (PSI) 25% of Burst | Theoretical Yield Point ** (PSI) | Collapse Pressure *** (PSI) |
| 0.250 | 0.020 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
| 0.250 | 0.028 | 30,000 | 75,000 | 21,649 | 5,412 | 8,660 | 5,967 |
| 0.250 | 0.035 | 30,000 | 75,000 | 29,167 | 7,292 | 11,667 | 7,224 |
| 0.250 | 0.049 | 30,000 | 75,000 | 48,355 | 12,089 | 19,342 | 9,455 |
| 0.250 | 0.065 | 30,000 | 75,000 | 81,250 | 20,313 | 32,500 | 11,544 |
| 0.375 | 0.020 | 30,000 | 75,000 | 8,955 | 2,239 | 3,582 | 3,029 |
| 0.375 | 0.028 | 30,000 | 75,000 | 13,166 | 3,292 | 5,266 | 4,145 |
| 0.375 | 0.035 | 30,000 | 75,000 | 17,213 | 4,303 | 6,885 | 5,077 |
| 0.375 | 0.049 | 30,000 | 75,000 | 26,534 | 6,634 | 10,614 | 6,816 |
| 0.375 | 0.065 | 30,000 | 75,000 | 39,796 | 9,949 | 15,918 | 8,597 |
| 0.500 | 0.020 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304L |
| 0.500 | 0.028 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.500 | 0.035 | 30,000 | 75,000 | 12,209 | 3,052 | 4,884 | 3,906 |
| 0.500 | 0.049 | 30,000 | 75,000 | 18,284 | 4,571 | 7,313 | 5,304L |
| 0.500 | 0.065 | 30,000 | 75,000 | 26,351 | 6,588 | 10,541 | 6,786 |
| 0.500 | 0.083 | 30,000 | 75,000 | 37,275 | 9,319 | 14,910 | 8,307 |
| 0.625 | 0.020 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
| 0.625 | 0.028 | 30,000 | 75,000 | 7,381 | 1,845 | 2,953 | 2,568 |
| 0.625 | 0.035 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.625 | 0.049 | 30,000 | 75,000 | 13,947 | 3,487 | 5,579 | 4,335 |
| 0.625 | 0.065 | 30,000 | 75,000 | 19,697 | 4,924 | 7,879 | 5,591 |
| 0.625 | 0.083 | 30,000 | 75,000 | 27,124 | 6,781 | 10,850 | 6,910 |
| 0.625 | 0.095 | 30,000 | 75,000 | 32,759 | 8,190 | 13,103 | 7,734 |
| 0.625 | 0.109 | 30,000 | 75,000 | 40,172 | 10,043 | 16,069 | 8,639 |
| 0.750 | 0.028 | 30,000 | 75,000 | 6,052 | 1,513 | 2,421 | 2,156 |
| 0.750 | 0.035 | 30,000 | 75,000 | 7,721 | 1,930 | 3,088 | 2,669 |
| 0.750 | 0.049 | 30,000 | 75,000 | 11,273 | 2,818 | 4,509 | 3,664 |
| 0.750 | 0.065 | 30,000 | 75,000 | 15,726 | 3,931 | 6,290 | 4,749 |
| 0.750 | 0.083 | 30,000 | 75,000 | 21,318 | 5,330 | 8,527 | 5,905 |
| 0.750 | 0.095 | 30,000 | 75,000 | 25,446 | 6,362 | 10,179 | 6,637 |
| 0.750 | 0.109 | 30,000 | 75,000 | 30,733 | 7,683 | 12,293 | 7,453 |
| 0.750 | 0.120 | 30,000 | 75,000 | 35,294 | 8,824 | 14,118 | 8,064 |
| 0.875 | 0.020 | 30,000 | 75,000 | 3,593 | 898 | 1,437 | 1,340 |
| 0.875 | 0.028 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
| 0.875 | 0.035 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304L |
| 0.875 | 0.049 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.875 | 0.065 | 30,000 | 75,000 | 13,087 | 3,272 | 5,235 | 4,126 |
| 0.875 | 0.083 | 30,000 | 75,000 | 17,560 | 4,390 | 7,024 | 5,152 |
| 0.875 | 0.095 | 30,000 | 75,000 | 20,803 | 5,201 | 8,321 | 5,807 |
| 0.875 | 0.109 | 30,000 | 75,000 | 24,886 | 6,221 | 9,954 | 6,543 |
| 0.875 | 0.120 | 30,000 | 75,000 | 28,346 | 7,087 | 11,339 | 7,100 |
| 1.000 | 0.028 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
| 1.000 | 0.035 | 30,000 | 75,000 | 5,645 | 1,411 | 2,258 | 2,027 |
| 1.000 | 0.049 | 30,000 | 75,000 | 8,149 | 2,037 | 3,259 | 2,796 |
| 1.000 | 0.065 | 30,000 | 75,000 | 11,207 | 2,802 | 4,483 | 3,647 |
| 1.000 | 0.083 | 30,000 | 75,000 | 14,928 | 3,732 | 5,971 | 4,567 |
| 1.000 | 0.095 | 30,000 | 75,000 | 17,593 | 4,398 | 7,037 | 5,159 |
| 1.000 | 0.109 | 30,000 | 75,000 | 20,908 | 5,227 | 8,363 | 5,827 |
| 1.000 | 0.120 | 30,000 | 75,000 | 23,684 | 5,921 | 9,474 | 6,336 |
| 1.000 | 0.134 | 30,000 | 75,000 | 27,459 | 6,865 | 10,984 | 6,963 |
| 1.250 | 0.035 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
| 1.250 | 0.049 | 30,000 | 75,000 | 6,380 | 1,595 | 2,552 | 2,260 |
| 1.250 | 0.065 | 30,000 | 75,000 | 8,705 | 2,176 | 3,482 | 2,958 |
| 1.250 | 0.083 | 30,000 | 75,000 | 11,485 | 2,871 | 4,594 | 3,719 |
| 1.250 | 0.095 | 30,000 | 75,000 | 13,443 | 3,361 | 5,377 | 4,213 |
| 1.250 | 0.109 | 30,000 | 75,000 | 15,843 | 3,961 | 6,337 | 4,776 |
| 1.250 | 0.120 | 30,000 | 75,000 | 17,822 | 4,455 | 7,129 | 5,207 |
| 1.250 | 0.134 | 30,000 | 75,000 | 20,468 | 5,117 | 8,187 | 5,742 |
| 1.500 | 0.035 | 30,000 | 75,000 | 3,671 | 918 | 1,469 | 1,367 |
| 1.500 | 0.049 | 30,000 | 75,000 | 5,243 | 1,311 | 2,097 | 1,896 |
| 1.500 | 0.065 | 30,000 | 75,000 | 7,117 | 1,779 | 2,847 | 2,487 |
| 1.500 | 0.083 | 30,000 | 75,000 | 9,333 | 2,333 | 3,733 | 3,136 |
| 1.500 | 0.095 | 30,000 | 75,000 | 10,878 | 2,719 | 4,351 | 3,559 |
| 1.500 | 0.109 | 30,000 | 75,000 | 12,754 | 3,188 | 5,101 | 4,043 |
| 1.500 | 0.120 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
| 1.500 | 0.134 | 30,000 | 75,000 | 16,315 | 4,079 | 6,526 | 4,881 |
| 1.500 | 0.148 | 30,000 | 75,000 | 18,439 | 4,610 | 7,375 | 5,336 |
| 1.750 | 0.035 | 30,000 | 75,000 | 3,125 | 781 | 1,250 | 1,176 |
| 1.750 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
| 1.750 | 0.065 | 30,000 | 75,000 | 6,019 | 1,505 | 2,407 | 2,146 |
| 1.750 | 0.083 | 30,000 | 75,000 | 7,860 | 1,965 | 3,144 | 2,711 |
| 1.750 | 0.095 | 30,000 | 75,000 | 9,135 | 2,284 | 3,654 | 3,080 |
| 1.750 | 0.109 | 30,000 | 75,000 | 10,672 | 2,668 | 4,213 | 3,504 |
| 1.750 | 0.120 | 30,000 | 75,000 | 11,921 | 2,980 | 4,768 | 3,832 |
| 1.750 | 0.134 | 30,000 | 75,000 | 13,563 | 3,391 | 5,425 | 4,242 |
| 1.750 | 0.148 | 30,000 | 75,000 | 15,268 | 3,817 | 6,107 | 4,645 |
| 1.750 | 0.165 | 30,000 | 75,000 | 17,430 | 4,357 | 6,972 | 5,124 |
| 2.000 | 0.035 | 30,000 | 75,000 | 2,720 | 680 | 1,088 | 1,032 |
| 2.000 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
| 2.000 | 0.065 | 30,000 | 75,000 | 5,214 | 1,303 | 2,086 | 1,887 |
| 2.000 | 0.083 | 30,000 | 75,000 | 6,788 | 1,697 | 2,715 | 2,387 |
| 2.000 | 0.095 | 30,000 | 75,000 | 7,873 | 1,968 | 3,149 | 2,715 |
| 2.000 | 0.109 | 30,000 | 75,000 | 9,175 | 2,294 | 3,670 | 3,092 |
| 2.000 | 0.120 | 30,000 | 75,000 | 10,227 | 2,557 | 4,091 | 3,384 |
| 2.000 | 0.134 | 30,000 | 75,000 | 11,605 | 2,901 | 4,642 | 3,751 |
| 2.000 | 0.148 | 30,000 | 75,000 | 13,028 | 3,257 | 5,211 | 4,111 |
| 2.000 | 0.165 | 30,000 | 75,000 | 14,820 | 3,705 | 5,928 | 4,542 |
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