JIS G3462 STHA22 Alloy Heat Exchanger Steel Tube Cold Drawn - 412 N/mm² Tensile Strength, 206 N/mm² Yield
Price:
Negotiable
MOQ:
5TONS
Delivery Time:
20--30days
Brand:
Joyruns
Product Description
JIS G3462 STHA22 Alloy Heat Exchanger Steel Tubes
JIS G3462 specifies alloy steel boiler and heat exchanger tubes designed for heat transfer applications both inside and outside the tube. Available in 8 steel grades from STBA12 to STBA26, these tubes share similar applications with JIS G3461 and can be supplied as U-tubes for specialized configurations.
Product Specifications & Applications
- 8 steel grades available: STBA12 through STBA26
- Suitable for U-tube configurations
- Not applicable for heating furnaces or low-temperature heat exchangers
- Heat treatment of bent portions performed upon customer request
Chemical Composition
| JIS G3462 Grade | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr | Mo |
|---|---|---|---|---|---|---|---|
| STBA 12 | 0.10~0.20 | 0.10~0.50 | 0.30~0.80 | 0.035 | 0.035 | - | 0.45~0.65 |
| STBA 13 | 0.15~0.25 | 0.10~0.50 | 0.30~0.80 | 0.035 | 0.035 | - | 0.45~0.65 |
| STBA 20 | 0.10~0.20 | 0.10~0.50 | 0.30~0.60 | 0.035 | 0.035 | 0.050~0.080 | 0.45~0.65 |
| STBA 22 | 0.15 | 0.50 | 0.30~0.60 | 0.035 | 0.035 | 0.80~1.25 | 0.45~0.65 |
| STBA 23 | 0.15 | 0.50~1.00 | 0.30~0.60 | 0.030 | 0.030 | 1.00~1.50 | 0.45~0.65 |
| STBA 24 | 0.15 | 0.50 | 0.30~0.60 | 0.030 | 0.030 | 1.90~2.60 | 0.87~1.13 |
| STBA 25 | 0.15 | 0.50 | 0.30~0.60 | 0.030 | 0.030 | 4.00~6.00 | 0.45~0.65 |
| STBA 26 | 0.15 | 0.25~1.00 | 0.30~0.60 | 0.030 | 0.030 | 8.00~10.00 | 0.90~1.10 |
Mechanical Properties
| JIS G3462 Grade | Tensile Property (N/mm²) | Yield Point or Yield Strength (N/mm²) | Elongation (%) |
|---|---|---|---|
| STBA12 | ≥ 382 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA13 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA20 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA22 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA23 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA24 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA25 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
| STBA26 | ≥ 412 | ≥ 206 | ≥ 30 | ≥ 25 | ≥ 22 |
Equivalent Steel Grades
| KS | ASTM | JIS | DIN | BS |
|---|---|---|---|---|
| D 3572 STHA12 | A161 A209 T1 T1 | G 3462 STBA12 | 17175 15Mo 3 | - |
| STHA13 | A209 T1a | STBA13 | - | - |
| STHA20 | A213 T2 | STBA20 | - | - |
| STHA22 | A213 T12 | STBA22 | 17175 13Cr Mo 44 | 3059 S1 620 S2 620 ERW620 CEW620 |
| STHA23 | A199 A200 A213 T11 T11 T11 | STBA23 | - | - |
| STHA24 | A199 A200 A213 T22 T22 T22 | STBA24 | 17175 10Cr Mo910 | 3059 S1 622-440 S2 622-440 |
| STHA25 | A199 A200 A210 T5 T5 T5 | STBA25 | - | - |
| STHA26 | A199 A200 A213 T9 T9 T9 | STBA26 | - | - |
Heat Treatment Specifications
| Symbol of Class | JIS G3462 Heat Treatment |
|---|---|
| STBA 12, STBA 13 | Low temperature annealing, isothermal annealing, full annealing, normalizing or normalizing followed by tempering |
| STBA 20, STBA 22 | Low temperature annealing, isothermal annealing, full annealing, normalizing or normalizing followed by tempering |
| STBA 23, STBA 24, STBA 25, STBA 26 | Isothermal annealing, full annealing or normalizing followed by tempering |
Product Images
Additional Services
We offer comprehensive steel fabrication services including cutting, welding, bending, machining, pre-coating, pre-lining, and beveling. Our experienced team with 5-10 years of expertise ensures high-quality processing according to your specific requirements.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee