ASTM A312 TP317/317L Seamless Tube with 100% ET,UT for Boiler / Heat Exchanger Application
Specifications
ASME SA213/A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-
Steel Boiler, Superheater and Stainless Steel Heat Exchanger Tubes.
ASTM A249 / A249M:Standard Specification for Welded Austenitic Steel Boiler, Superheater
Heat-Exchanger, and Condenser Tubes.
Other Standard:DIN 17456 , DIN 17458, EN10216-5, GOST 9940-81, GOST 9941-81, JIS-G3463,...
Stainless steel grade 317L is a low carbon version of grade 317 stainless steel. It has the same high strength and corrosion resistance as 317 steel but can produce stronger welds due to the low carbon content.
| STANDARD | UNS | WERKSTOFF NR. |
| SS 317 | S31700 | 1.4449 |
| SS 317L | S31703 | 1.4438 |
Mechanical Properties ASTM A312 TP 317L Stainless Steel Pipes and Tubes
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000, MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000, MPa – 205 |
| Elongation | 35 % |
Physical Properties (Room Temperature) ASTM A312 TP 317L Stainless Steel Pipes and Tubes
| Specific Heat (0-100°C) | Thermal Conductivity | Thermal Expansion | Modulus Elasticity | Electrical Resistivity | Density |
| 500 | 14.6 | 16.5 | 193 | 7.4 | 7.99 |
| J.kg-1.°K-1 | W.m -1.°K-1 | mm/m/°C | GPa | μohm/cm | g/cm3 |
SS TP317L Tubing Size Range
| Production | Outside Diameter | Wall Thickness |
| BoilerTube | 3.00mm to 219.1mm | 0.4mm to 12.7mm |
Some of the quality tests carried out by us includes
| Corrosion Test | Conducted only when specially requested by the client |
| Chemical Analysis | Test done as per required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s . |
| Air Under Pressure Test | To check any evidence of air leakage |
| Visual Inspection | After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:
- Eddy Current Testing
- O.P Testing
- Radiography Testing
| - Corrosion Testing
- Micro Testing
- Macro Testing
| - IGC Testing
- Ultrasonic testing
- Liquid Penetrate testing
|
Typical Applications - ASTM A312 Stainless Steel 317L Seamless Pipe
1. Flue gas desulfurization scrubber systems
2. Chemical and petro-chemical processing equipment
3. Pulp and paper plants
4. Food processing equipment
5. Textile equipment
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ASTM A312 TP317L Stainless Steel Seamless Tube 100% ET UT Boiler Tube Images
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