Grade 304 austenitic stainless steel alloy is among the greatest options for piping system improvements. This is true in the case of the ASTM A249 TP 304 Welded Stainless Steel Tube since the use of alloy 304 in its fabrication might significantly lower the cost of the entire process. The alloy is widely available on international markets, and because of its mechanical qualities, ASTM A249 Welded Stainless Steel Tubing is adaptable enough to be utilised in a variety of applications, such as condenser tubes, heat exchangers, boilers, and superheaters.
There are certain standards that must be met if the production of said tubes is done in accordance with specification ASTM A249, such as conducting a heat and product analysis on the ASTM A249 Type 304 ERW Tubing. A heat and product analysis is required to ascertain whether the chemistry adheres to that specific grade. The heat treatment of ASME SA 249 TP 304 Tube is another need under this specification, and it must be provided while taking the grade 304's solution temperature and quenching technique into consideration. The ASME SA 249 TP 304 ERW Tube must undergo testing to determine their compatibility because they will be subjected to a variety of environmental factors in the field.
Additionally, during these tests, the SA 249 TP 304 Material's conformity to the tensile characteristics is examined.In general, the yield and tensile strength as well as the elongation, and Rockwell hardness number are studied to determine the tensile characteristics and hardness of the ASTM A249 TP304 tube. A variety of tests are performed on the tubes in addition to examining the astm a249 tp 304's grain size, including a flattening test, flange test, tension test, hardness test, reverse bend test, hydrostatic or nondestructive electric test.
Specification | ASTM A249 / ASME SA249 |
Manufacturing Type | ERW / Welded / Fabricated / CDW / DOM / CEW / 100% X Ray Welded |
Delivery Condition | Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF |
Surface Finish | BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, 180G, 320G, 400G Satin/ Hairline, 400G, 500G, 600G or 800G Mirror finish ASME SA249 Standard Tubing or Custom Finish as per customer's specification |
Outside Diameter (OD) | 6 to 304.8 mm |
Wall Thickness Range | 0.5 to 6 mm |
Standard | SUS, JIS, AISI, ASTM, GB, DIN, EN |
Value Added Services |
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Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
Technique | ASTM A249 Welded Austenitic Steel Cold drawn, Cold rolled, Hot rolled, Extrusion Tube |
Tolerance |
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Test Certificate |
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Packaging | Packed in PE Fabric Bundles or ply wooden box wrapped in plastic or Standard seaworthy export packing or as per customers' request |
Port | Mumbai, India |
Uses & Application |
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Dimensions | Wall | Weight per | Dimensions | Wall | Weight per | |
---|---|---|---|---|---|---|
(mm) | (mm) | metre (kg) | (mm) | (mm) | metre (kg) | |
12.7 x 12.7 | 1.20 | 0.44 | 40 x40 | 1.20 | 1.49 | |
12.7 x 12.7 | 1.50 | 0.55 | 40 x40 | 1.50 | 1.85 | |
15 x 15 | 1.20 | 0.53 | 40 x40 | 2.00 | 2.45 | |
15 x 15 | 1.50 | 0.65 | 40 x40 | 3.00 | 3.75 | |
20 x 20 | 1.20 | 0.71 | 50 x50 | 1.50 | 2.32 | |
20 x 20 | 1.50 | 0.88 | 50 x50 | 2.00 | 3.08 | |
20 x 20 | 2.00 | 1.19 | 50 x50 | 3.00 | 4.65 | |
25 x 25 | 1.20 | 0.92 | 60 x60 | 2.00 | 3.71 | |
25 x 25 | 1.50 | 1.14 | 60 x60 | 3.00 | 5.49 | |
25 x 25 | 2.00 | 1.49 | 70 x70 | 3.00 | 6.53 | |
25 x 25 | 3.00 | 2.20 | 80 x80 | 2.00 | 4.98 | |
30 x 30 | 1.20 | 1.10 | 80 x80 | 3.00 | 7.53 | |
30 x 30 | 1.50 | 1.37 | 100 x 100 | 2.00 | 6.40 | |
30 x 30 | 2.00 | 1.84 | 100 x 100 | 3.00 | 9.53 | |
30 x 30 | 3.00 | 2.72 | ||||
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
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304 | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
---|---|---|---|---|---|---|---|---|---|
0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
304 | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
ASTM A249 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 | ||||
304 | 515 | 205 | 40 | 92 | 201 |
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
---|---|---|---|---|---|---|---|
BS | En | No | Name | ||||
304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |