EN 10025-1 S235JR Structural Steel Tube Hot Rolled Seamless Steel Tube For Mechanical Manufacturing
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
| Minimum Order Quantity : | 5 Ton | Price : | negotiable |
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| Packaging Details : | Packing in wooden box，hexagonal bundles or other seaworthy ways. | Delivery Time : | 45 days |
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability : | 40000 Ton/Year |
| Place of Origin: | China | Brand Name: | TORICH |
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| Certification: | ISO 9001 ISO 14001 TS 16949 | Model Number: | GB/T 20409 |
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Detail Information |
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| Product Name: | GB/T 20409 Multi-Rifled Seamless Steel Tubes For High-Pressure Boiler | Material: | 20G , 20MnG , 25MnG , 12CrMoG , 15CrMoG |
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| Surface: | Oiled | Application: | High-pressure Boiler |
| Shape: | Round | OD: | 4-1200mm |
| WT: | 0.3-200mm | Length: | 8-12m |
| Highlight: | seamless steel pipe,seamless carbon steel tube |
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Product Description
GB/T 20409 Multi-Rifled Seamless Steel Tubes for High-Pressure Boiler
Spec:
Material:20G , 20MnG , 25MnG , 12CrMoG , 15CrMoG
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:8-12m
Tolerance:
According to the following tables or customers’ request.
Longitudinal mechanical properties of internal screw tubes at room temperature
| Number | Grade | tensile strength
MPa(N/ | Lower yield strength/MPa((N/) | Elongation A/% | Impact energy
|
| Not less than | |||||
| 1 | 20G | 410~550 | 245 | 24 | 35 |
| 2 | 20MnG | ≥415 | 240 | 22 | 35 |
| 3 | 25MnG | ≥485 | 275 | 20 | 35 |
| 4 | 12CrMoG | 410~560 | 205 | 21 | 35 |
| 5 | 15CrMoG | 440~640 | 235 | 21 | 35 |
The grade and chemical composition of steel
| Number | Brand | chemical composition(mass fraction)/ % | ||||||
| C | Mn | Si | Cr | Mo | S | P | ||
| 1 | 20G | 0.17~0.23 | 0.35~0.65 | 0.17~0.37 | -- | -- | ≤0.020 | ≤0.025 |
| 2 | 20MnG | 0.17~0.23 | 0.70~1.00 | 0.17~0.37 | -- | -- | ≤0.020 | ≤0.025 |
| 3 | 25MnG | 0.22~0.29 | 0.7~1.00 | 0.17~0.37 | -- | -- | ≤0.020 | ≤0.025 |
| 4 | 12CrMoG | 0.08~0.15 | 0.40~0.70 | 0.17~0.37 | 0.40~0.70 | 0.40~0.55 | ≤0.020 | ≤0.025 |
| 5 | 15CrMoG | 0.12~0.18 | 0.40~0.70 | 0.17~0.37 | 0.80~1.10 | 0.40~0.55 | ≤0.020 | ≤0.025 |
| Note1:Residual element content of 20G,20MnG,25MnG should satisfy: Cu≤0.20%,Cr≤0.25%,Ni≤0.25%,V≤0.08%,Mo≤0.15%；The remaining elements of other brands should satisfy: Cu≤0.20%,Ni≤0.30%. Note2:The acid soluble aluminum in 20G steel should not be more than 0.010%. Note3:The nitrogen content of the steel produced by the oxygen converter plus the refining of the furnace should not be more than 0.008%. | ||||||||
Characteristic:
TORICH QUALITY ASSURANCE
Good surface quality
Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test
Processing:Cold drawning
Technical Delivery Conditions:Heat treatment
Widely used in the field of:High-pressure boiler
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| TORICH INTERNATIONAL LIMITED |
| Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China |
| 86-574-88086983 |
| sales@steel-tubes.com |