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.
Tube soudé en acier inoxydable 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
- Applications 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 Welded tube
- Mechanical Properties of Stainless Steel Welded tube
- SS WELDED TUBE PRESSURE RATING
Specification and Size of Stainless Steel Welded tube
Available Specification
| Nom du produit | Norme « Executive » | Dimension | Code de l'acier / Nuance d'acier |
| Tuyaux industriels | ASTM A312, A358, A778 JIS G3459 | Diamètre extérieur : 1/4″ à 40″ WT : SCH5S~SCH80S | TP304, TP304L, TP316L, SUS304TP |
| Tubes pour chaudières et échangeurs de chaleur, tubes à usage général | ASTM A249, A269, JIS G3463 | Diamètre extérieur : 15,9 à 139,8 mm Épaisseur : 1,6 à 5,0 mm | TP304, TP304L, TP316L, SUS304TB |
| Tubes mécaniques et de structure | ASTM A554, JIS G3446 | Diamètre extérieur : 7,9 à 152,4 mm Épaisseur : 0,5 à 6,5 mm | MT304, MT304L, MT316L, MT430, nuances 201 et 202, conformes à la norme STD SUS304 de l'aciérie |
| Tubes carrés | ASTM A554 | Diamètre extérieur : 12,7 × 12,7 ~ 150 × 150 mm Épaisseur : 0,7 à 6,5 mm | MT304, MT304L, MT316L, MT430, nuances 201 et 202, conformément aux normes de l'usine |
| Tubes rectangulaires | ASTM A554 | Dimensions extérieures : 10 × 20 à 100 × 200 mm Épaisseur : 0,7 à 6,5 mm | MT304, MT304L, MT316L, MT430, nuances 201 et 202, conformément aux normes de l'usine |
| Tuyaux sanitaires | ASTM A270 JIS G3447 | Diamètre extérieur : 25,4 à 165,2 mm Épaisseur : 0,8 à 3,05 mm | TP304, TP304L, TP316L, SUS304TBS |
| Tuyaux de grande section pour les réseaux de canalisations classiques | JIS G3448 | Diamètre extérieur : 15,88 à 318,5 mm Épaisseur : 0,8 à 3,0 mm | SUS304TPD |
| Tuyaux de grand diamètre | JIS G3468 | Diamètre extérieur : 14″ à 40″ WT : SCH5S~SCH40S | SUS304TPY |
Applications 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 | + | – | ||
| pouce | mm | pouce | 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, welded | 17.5 | 12.5 |
| ≥ 20, seamless, t/D≤ 5% | 22.5 | 12.5 |
| ≥ 20, seamless, t/D> 5% | 15.0 | 12.5 |
Chemical Properties of Stainless Steel Welded tube
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. | Autres |
| 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 Welded tube
Mechanical Property (For Reference)
JIS Specification
Spec.JISG4303,G4304,G4305,G4312
| Steel Grade | N/mm 2 MIN. Tensile Stress | N/mm 2 MIN. Proof Stress | 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 pouces | Largeur moyenne en pouces | Résistance à la déformation minimale (PSI) | Résistance minimale à la traction (PSI) | Pression théorique d'éclatement * (PSI) | Pression de service (PSI) 25% de rupture | Limite d'élasticité théorique ** (PSI) | Pression d'écrasement *** (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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