JIS G3461 STB35 Carbon Steel Heat Exchanger Tubes - 340 MPa Tensile Strength, 0.18% Max Carbon Content
Price:
Negotiable
MOQ:
5TONS
Delivery Time:
20--30days
Brand:
Joyruns
Product Description
JIS G3461 STB35 carbon steel tubes are specifically designed for boilers and heat exchangers, offering exceptional performance in demanding industrial applications.
Applications
- Water tubes, smoke tubes, superheater tubes, and air preheater tubes for boilers
- Heat exchanger tubes, condenser tubes, and catalyzer tubes for chemical and petroleum industries
Key Properties
STB35 steel tubes provide high strength-to-weight ratio, excellent durability, superior ductility, and reliable corrosion resistance, making them ideal for high-temperature applications.
Chemical Composition
| JIS G3461 | Traditional Symbol | C | Si | Mn | P | S |
|---|---|---|---|---|---|---|
| STB 340 | STB 35 | 0.18 max | 0.35 max | 0.30 to 0.60 | 0.035 max | 0.035 max |
| STB 410 | STB 42 | 0.32 max | 0.35 max | 0.30 to 0.80 | 0.035 max | 0.035 max |
| STB 510 | STB 52 | 0.25 max | 0.35 max | 1.00 to 1.50 | 0.035 max | 0.035 max |
Mechanical Properties
| JIS G3461 | Tensile Strength (N/mm²) | Yield Point (N/mm²) | Elongation (%) | Hardness |
|---|---|---|---|---|
| STB 340 | 340 min | 175 min | 27-35 min | 77 max |
| STB 410 | 410 min | 255 min | 17-25 min | 79 max |
| STB 510 | 510 min | 295 min | 17-25 min | 92 max |
International Equivalents
| JIS G3461 | ASTM | ASME | BS | DIN | ABS | NK | LRS | DNV |
|---|---|---|---|---|---|---|---|---|
| STB 340 | A178 | SA178 A | 3059-P1 320 | 17175 st 35.8 | ABS D | KSTB 33 | Sec 6 320 | Sec 4-E-TS360 |
| STB 410 | A178 C | SA178 C | 3059-P2 440 | 17175 st 45.8 | ABS F | KSTB 42 | Sec 6 410 | Sec 4-E-TS410-1 |
| STB 510 | - | - | - | 17175 19Mn 5 | - | - | - | Sec 4-E-TS510 |
Manufacturing Methods
| Symbol | Hot Finished Seamless | Cold Finished Seamless | Electric Resistance Welded |
|---|---|---|---|
| STB 340 | As manufactured, low-temperature annealing or normalizing | Low-temperature annealing, normalizing or full annealing | Normalizing or as manufactured with optional heat treatment |
| STB 410 | As manufactured, low-temperature annealing or normalizing | Low-temperature annealing, normalizing or full annealing | Normalizing or low-temperature annealing |
| STB 510 | Normalizing | - | - |
Product Images
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Get in Touch
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Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee