Heat Resisting Stainless Steel Tube
General Information
Specification Scope :
This specification applies to general Heat Resisting Stainless Steel Tube and food / milk processing industry (FQ).
Equivalent standards :
AS1528.1 - Tubes for the food Industry
ASTM A249 & A269 - Boiler, heat exchanger and condenser tubes
ASTM A554 - General & Architectural Application
Available sizes :
Tube sizes range from 6.35 mm to 203.2 mm outside diameter.
Heat Resisting Stainless Steel Tube Grades of Material :
304, 304L,316, 316L Stainless Steel
Manufacture :
Automatic tig welding with no addition of filler metal
Heat treatment :
Tube is not post weld heat treated except for Standards ASTM A269 & A249 where tube is annealed
Heat Resisting Stainless Steel Tube Material Tests
| Grades | TP 304 | TP 304L | TP 316 | TP 316L |
| C max | 0.07 | 0.03 | 0.08 | 0.03 |
| Mn max | 2.00 | 2.00 | 2.00 | 2.00 |
| P max | 0.045 | 0.045 | 0.045 | 0.045 |
| S max | 0.03 | 0.03 | 0.03 | 0.03 |
| Si max | 0.75 | 0.75 | 0.75 | 0.75 |
| Cr | 17.5 -- 19.5 | 17.5 -- 19.5 | 16 -- 18 | 16 -- 18 |
| Ni | 8 -- 10.5 | 8 -- 12 | 10 -- 14 | 10 -- 14 |
| N max | 0.10 | 0.10 | 0.10 | 0.10 |
| Mo | -- | -- | 2.00-3.00 | 2.00-3.00 |
Mechanical Tests
Except tube made to ASTM A249 and specifically requested otherwise Yield stress , Tensile tests & Hardness Mn - Manganese tests are from coil manufactured to ASTM A240 / 480.
Yield Stress (Coil)
| TP 304 & TP 316 | 205 MPa min |
| TP 316L & TP304L | 170 MPa min |
Tensile Stress (Coil)
| TP 304 & TP 316 | 515 MPa min |
| TP 316L & TP 304L | 485 MPa min |
Elongation (Coil)
40% Minimum (50mm test piece)
Hardness tests (Coil)
| TP 304 & TP 304L | 92 HRB / 202 HB30 max |
| TP 316 & TP 316L | 95 HRB / 217 HB30 max |
Marking of packages
Through a correct and complete marking of packaging will create the conditions to avoid misuse, accidents, wrong delivery, mass and volume losses and customs penalties. We do marking very clear and precise on ERW Steel Pipes & Tubes. You should contrast clearly with the package, usually it is applied in black color.
Types of Packaging:
- Bundles (hexagonal)
- Wooden Boxes
- Crates (steel/wooden)
- Special crates for U-Bend tubes with each radius separated
- Packaging for SS 304 ASTM A312 Seamless Pipe as per customer's requirements
Chemical
Petrochemical
Refineries
Fertilizers
Power Plant
Nuclear Power
Construction
Oil & Gas
Paper
Breweries
Cement
Sugar
Oil Mills
Mining
Shipbuilding
Steel Plant
Offshore
Defence
Ports
Railway
Engineering Co. & Government Org. etc
ERW Steel Pipes & Tubes uses & Application
