Home > Products > Seamless Tubes for Boiler &Heat Exchanger > Tube STB340 Seamless in small calibers for high(low and medium) Pressure boilers
Tube STB340 Seamless in small calibers for high(low and medium) Pressure boilers
- 3000 Ton / Tons per Month
- Tianjin
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Product Details
| Thickness | 1, 12 | Section Shape | Round | |
| Outer Diameter | 8 - 80 mm | Place of Origin | Hebei, China | |
| Secondary Or Not | Non-secondary | Application | Boiler Pipe | |
| Technique | Cold Rolled | Certification | Other, iso9001 | |
| Surface Treatment | Other, with oil on surface to prevent rust | Special Pipe | Thick Wall Pipe | |
| Alloy Or Not | Non-alloy |
Product Description
Tube STB340 Seamless in small calibers for high(low and medium) Pressure boilers
Main Steel Pipe Model
10/STB340/ST45.8/Ⅲ etc.
Standard Size
GB3087 ,GB5310,ASME SA210 ,DIN17175 ,JIS G3461
Diamensional tolerances:
Types of steel tubes | Outer diameters | Wall thickness | ||
Cold-rolled tubes | Tube sizes(mm) | Tolerances(mm) | Tube sizes (mm) | Tolerances(mm) |
>30~50 | ±0.3 | >3~20 | ±10% | |
Application
Used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5.88Mpa and operating temperature below 450 oC), as the pipes on the heated sides of high·pressure boilers, economizers, overheaters, reheaters and pipes for petrochemical industry(with the operating pressure above 9.8Mpa and operating temperature ranging between 450-650C1
Mechanical properties:
Standard codes | steel | Tensite strength(MPa) | Yield strength(MPa) | Elongation(%) | Hardness |
GB3087 | 10 | 335~475 | ≥195 | ≥24 | / |
20 | 410~550 | ≥245 | ≥20 | / | |
GB5310 | 20G | 410~550 | ≥245 | ≥24 | / |
20MnG | ≥415 | ≥240 | ≥22 | / | |
25MnG | ≥485 | ≥275 | ≥20 | / | |
ASME SA210 | SA210A-1 | ≥415 | ≥255 | ≥30 | ≤143HB |
SA210C | ≥485 | ≥275 | ≥30 | ≤179HB | |
DIN17175 | ST45.8/Ⅲ | 410~530 | ≥255 | ≥21 | / |
15Mo3 | 450~600 | ≥270 | ≥22 | / |
Chemical composition:
Standard codes | steel | Chemical compositions (%) | ||||||
C | Si | Mn | P | S | Cr | Mo | ||
GB3087 | 10 | 0.07~0.13 | 0.17~0.37
| 0.38~0.65 | ≤0.030
| ≤0.030
|
| |
20 | / | |||||||
GB5310 | 20G | 0.17~0.24 | 0.35~0.65 |
| ||||
20MnG | 0.17~0.24 | 0.70~1.00 |
| |||||
25MnG | 0.18~0.24 | 0.80~1.10 |
| |||||
15CrMo | 0.12~0.18 | 0.40~0.70 | 0.80~1.10 | 0.40~0.55 | ||||
ASME SA210 | SA210A-1 | 0.13~0.19 | ≥0.1 | 0.45~0.65 | ≤0.030 | ≤0.030 | ||
SA210C | 0.18~0.24 | 0.80~1.10 | ||||||
DIN 17175 | ST45.8/Ⅲ | ≤0.21 | 0.10~0.35 | 0.40~1.20 | ≤0.040 | ≤0.040 | ||
15Mo3 | 0.12~0.20 | 0.40~0.80 | ≤0.035 | ≤0.035 | 0.25~0.35 | |||
Manufacturer | Hebei Province Gold Mysterious Pipe Co.,Ltd | |
Process | Seamless, Cold drawn | |
size | Outer Diameter | 25.8,31.8,38,50.8mmetv |
Wall Thickness | 1.6-3.5mm | |
Length | max 12m | |
Contact | Elina Wong 86-0312-6721288 skype.....>jinaoguanye3 | |
Contact Us
- Hebei Province Gold Mysterious Pipe Co., Ltd.
- Contact nameKenny Cheng Chat Now
- Phone86-312-6721288
- AddressPangKou Auto Agricultural Machinery Parts Industry Park, Baoding, Hebei
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