Stainless Steel 304L Seamless Tubes often eliminates the necessity of annealing weldments except for applications specifying stress relief. Stainless Steel 304L Welded Tubes should be used in heavier sections to reduce the occurrence of carbide precipitation in the heat affected region adjacent to the weld pool. Stainless Steel 304L EFW Tubes is useful in applications where good mechanical properties and corrosion resistance are essential. Continuous use of Stainless Steel 304L ERW Tubes in the 425 Degree C – 860 Degree C range is not recommended if subsequent aqueous corrosion resistance is important. Stainless Steel 304L Round Tubes is ideal for a wide variety of home and commercial applications. SS 304L Square Tubes is an even lower carbon version of Stainless Steel 304 Tubes, which means coolants and lubricants are necessary and must be used in large quantities. Weld annealing of Stainless Steel 304L Rectangular Tubes is only necessary in applications where stress loads are excessive.
The maximum temperature achieved with the simulation (900 Degree C – 1000 Degree C) was significantly lower than the melting temperature of SS 304L Electropolish Tubes at 1450 Degree C. 304L Stainless Steel Tubes performs well when exposed to relatively high temperatures, since it is quite ductile and forms easily. Readily fabricated by most cold working methods, SS 304L Tubes may require intermediate annealing to avoid cracking or tearing from radical deformation. SS 304L Tubes has prevention of product contamination and resistance to oxidation.
Equivalent Grades for 304L Stainless Steel Tubes
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
304L | S30403 | 304S11 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304L |
304L SS Welded Tubes Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
304L | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
max. | 0.03 | 2.0 | 1.00 | 0.045 | 0.03 | 20.0 | 12.0 | – |
Stainless Steel 304L Seamless Tube Mechanical Properties
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
304L | 485 | 170 | 40 | 92 | 201 |
Stainless Steel 304L Tubes Physical Properties
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
304L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
NOTE : OTHER SIZES AND GRADES ARE AVAILABLE UPON REQUEST
SS Seamless Tubes are available in different grades and standards. Some of the standard features these are made available in include
Specifications : ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358
Dimensions : ASTM, ASME and API
Size : 1/8″NB TO 30″NB IN
SS Tubes : 1/2″ NB – 16″ NB
SS ERW Tubes : 1/2″ NB – 24″ NB
SS EFW Tubes : 6″ NB – 100″ NB
Specialized in : Large Diameter Size
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Form : Round, Square, Rectangular, Hydraulic Etc
Length : Single Random, Double Random & Cut Length
End : Plain End, Beveled End, Treaded
Type : Seamless / ERW / Welded / Fabricated / LSAW Tubes
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