ASTM A213 UNS S30403 Boiler Tubing
1. Standard: ASTM A213, ASME SA213
2. Size: 1/2''~48''
3. Thickness: SCH5~SCHXXS
4. Service: Cutting, Welding, Fabricated, Customized
ASTM A213 UNS S30403 is a specification covering seamless austenitic stainless steel tubing, specifically used for boiler, superheater, and heat-exchanger applications. Alloy 304L is the low-carbon version of 304 stainless steel, often referred to as 304L, which enhances its resistance to intergranular corrosion following welding or stress-relieving. 304L stainless steel pipe offers resistance to pitting and crevice corrosion in chloride-containing environments. Ideal for use in steam boilers and superheaters where high temperatures and pressures are prevalent.
ASTM A213 UNS S30403 Tube Applications:
- 1. Boiler Tubing
- 2. Heat Exchangers
- 3. Petrochemical Industry
- 4. Pharmaceutical Equipment
Standard Specification For SS 304L Seamless Tubes
| Specification | ASTM A213 / ASME SA213 |
| Standard | ASTM, ASME and API |
| Size | 1 / 8" NB - 24" NB |
| Types | Seamless - Hot Rolled / Cold Drawn |
| Length | Single Random, Double Random & Required Length |
| Outer Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Types | Seamless / Cold Drawn / Hot Finish / Cold Finish |
| Form | Round Tubes, Square Tubes, Rectangular Tube, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes |
| End | Plain End, Beveled End, Treaded |
Mechanical Properties of AISI 304L Tubing:
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa (70 ksi) minimum |
| Yield Strength (0.2% offset) | 170 MPa (25 ksi) minimum |
| Elongation | 35% minimum |
| Hardness | 90 HRB max |
Physical Poperties of ASME SA213 UNS S30403 include:
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Range | 1400-1450°C (2552-2642°F) |
| Thermal Conductivity | 16.2 W/m·K at 100°C |
| Specific Heat Capacity | 500 J/kg·K at 20°C |
| Electrical Resistivity | 0.72 µΩ·m at 20°C |
Why Choose US?
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificate (MTC)
- Raw Material Certificate
- 100% Radiographic Inspection Report
- 100% PMI
- Heat Treatment Chart
- SGS Third Party Inspection
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