JIS · JIS G3467
JIS G3467 Technical Requirements for Tube Furnace Pipes
Field of Application
This JIS G3467 standard specifies the technical requirements for pipes manufactured from carbon steel, low-alloy steel, high-alloy stainless steel, as well as nickel, chromium, and iron-based alloys. These products, supplied by EV Group China, are designed for use in tube furnaces employed for heating process media in petrochemical synthesis and hydrocarbon feedstock deep processing.
Note: Upon preliminary agreement with the customer, pipes may be subjected to additional tests and quality inspections provided by the standard's appendices:
- Z2: Determination of yield strength at elevated temperatures.
- Z3: Ultrasonic testing (UT).
- Z4: Eddy current testing for defects.
- Z6: Corrosion resistance testing.
All physical and mechanical values are provided in accordance with the International System of Units (SI).
Mechanical Properties of Steels
| Elongation (%), min. | Elongation (%), min. | Elongation (%), min. | Yield Strength (N/mm²), min. | Tensile Strength (N/mm²), min. | Finishing Method | Steel Grade | |
|---|---|---|---|---|---|---|---|
| 19 | 24 | 25 | 30 | 205 | 380 | - | STFA 2 |
| 19 | 24 | 25 | 30 | 205 | 410 | - | STFA 3 |
| 19 | 24 | 25 | 30 | 205 | 410 | - | STFA 4 |
| 19 | 24 | 25 | 30 | 205 | 410 | - | STFA 5 |
| 19 | 24 | 25 | 30 | 205 | 410 | - | STFA 6 |
| Specimen No. 4 | Specimen No. 4 | Specimens No. 11 and No. 12 | Specimens No. 11 and No. 12 | Yield Strength (N/mm²), min. | Tensile Strength (N/mm²), min. | Finishing Method | Steel Grade |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS304HTF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS304TF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS309TF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS310TF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS316HTF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS321HTF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS321TF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS347HTF |
| 22 | 30 | 25 | 35 | 205 | 520 | - | SUS347TF |
| 19 | 24 | 20 | 25 | 245 | 410 | - | STF410 |
| - | - | - | 30 | 175 | 450 | - | NCF800HTF |
| - | - | - | 30 | 205 | 520 | Cold finished | NCF800TF |
| - | - | - | 30 | 175 | 450 | Hot finished | NCF800TF |
| Transverse | Longitudinal | Transverse | Longitudinal | Yield Strength (N/mm²), min. | Tensile Strength (N/mm²), min. | Finishing Method | Steel Grade |