ASTM A213 TP304 Stainless Steel Seamless Tube is manufactured by seamless process used in high-pressure environments, stainless steel TP304 grade is the most used material due to its high strength and excellent corrosion resistance.
There are main manufacturing processes for ASTM A213 TP 304 seamless tube including cold rolled, cold drawn, Heat treatment and pickling seamless tube manufacturing should comply with ASTM A213 specification, and analysis products as per testing and inspection certificate.
ASTM A213 TP304 Seamless Tube Specifications
| Standard | ASTM A213 |
|---|---|
| Grade | TP304 |
| Tube Type | Seamless Tube |
| Finishes | Annealing Pickling Bright Annealing |
| Outside Diameter | 1/8″ – 5″ |
| Thickness | 0.015″ – 0.500″ |
| Length | Fixed And Random Length |
| Application | Boiler, Heat Exchanger, Super Heater |
A213 304 Stainless Steel
304 stainless steel is the most used grade, it is a typical 18/8 stainless steel makeup of chromium and nickel, and other alloy elements are added to improve its properties, overall this makes 304 stainless steel the popular material, 304L and 316H are expanded grades based on 304 stainless steel.
A213 304 Chemical Composition
| Grade | C | Si | Mn | Cr | Ni | Mo | S | P |
|---|---|---|---|---|---|---|---|---|
| TP304 | 0,08 | 1,0 | 2 | 18 – 20 | 8 – 11 | – | 0,03 | 0,045 |
A213 304 Mechanical Properties
| Grade | Tensile Strength(Mpa) | Yield Point(Mpa) | Elongation(%) | Hardness(HRB) | Solution Temperature |
|---|---|---|---|---|---|
| TP304 | 515 | 205 | 35 | 90 | 1040 |
ASTM A213 / ASME SA213
ASTM A213 / ASME SA213 is an American specification for stainless steel boiler, super heater, heat exchanger tubes, executed by most world stainless steel seamless tubes mills and factories, minimum wall thickness required in A213 seamless tube, or average wall thickness as customer’s requirement, tight tolerance of outside and wall thickness stated as A213 standard or A1016
ASTM A213 Permissible Variations In Outside Diameter, Wall Thickness And Length
| OD, mm | W.T. mm | L, mm | |
|---|---|---|---|
| ≤25.4 | ±0.10 | +20%, 0%, OD>50, T>5.6 AVG wall +/-10% |
OD<50.8,+3mm, OD>=50.8, +5mm |
| 25.4~38.1 | ±0.15 | ||
| 38.1~50.8 | ±0.2 | ||
| 50.8~63.5 | ±0.25 | ||
| 63.5~76.2 | ±0.3 | ||
| 76.2~101.6 | ±0.38 | ||
ASTM A213 TP304 Seamless Tube Manufacturing and Quality Control
Dongshang Stainless produces stainless steel seamless tube complying with the quality system, records each stage, and ensures every process is correct following A213 specification, all the tests should be done according to standards and requirements, mill test certificate (MTC) will be offered as EN10204 – 3.1 type.
Manufacturing Capacity
- 6 sets of cold rolling machines
- 10 sets of cold-drawn machines
- Annealing furnace
- Tube cutting machines
- Straightening machine
- Pickling bath
Testing Devices
- PMI tester
- Universal test machine
- Eddy current test machine
- Hydrostatic test machine
- Ultrasonic test machine
- Corrosion testing device
- Rockwell hardness