GB/T8162 Q235 Structural Seamless Steel Tubes Thick Wall Tube For Heat Exchanger
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
| Minimum Order Quantity : | 5 Ton | Price : | USD 800-1200 / Ton |
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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 18984 |
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Detail Information |
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| Product Name: | GB/T 18984 Seamless Steel Tubes For Low-Temperature Service Piping | Material: | 16MnDG , 10MnDG , 09DG |
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| Surface: | Oiled | Application: | Low Temperature Heat Exchanger |
| Shape: | Round | OD: | 4-1200mm |
| WT: | 0.3-200mm | Length: | 4-12m |
| High Light: | carbon steel tube,high carbon steel tube |
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Product Description
GB/T 18984 Seamless Steel Tubes for Low-Temperature Service Piping
Spec:
Material:16MnDG , 10MnDG , 09DG
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:4-12m
Tolerance:
According to the following tables or customers’ request.
Permissible deviation tolerance of OD and WT
| Classfication | Steel size | Permissible tolerance | |
| W-H | OD | ＜351 | ±1.0%D |
| ≥351 | ±1.25%D | ||
| WT | ≤25 | ±12.5%S | |
| W-C | OD | ≤30 | ±0.20 |
| ＞30~50 | ±0.30 | ||
| ＞50 | ±0.75%D | ||
| WT | ≤3 |
＋12.5%S -10%S |
|
| ＞3 | ±10%S | ||
Steel grade and chemical composition
| Steel grade | Chemical composition/% | |||||||
| C | Si | Mn | P | S | Ni | Mo | V | |
| 16MnDG | 0.12~0.20 | 0.20~0.55 | 1.20~1.60 | ≤0.025 | ≤0.025 | — | — | — |
| 10MnDG | ≤0.13 | 0.17~0.37 | ≤1.35 | ≤0.025 | ≤0.025 | — | — | ≤0.07 |
| 09DG | ≤0.12 | 0.17~0.37 | ≤0.95 | ≤0.025 | ≤0.025 | — | — | ≤0.07 |
| 09Mn2VDG | ≤0.12 | 0.17~0.37 | ≤1.85 | ≤0.025 | ≤0.025 | — | — | ≤0.12 |
| 06Ni3MoDG | ≤0.08 | 0.17~0.37 | ≤0.85 | ≤0.025 | ≤0.025 | — | — | ≤0.05 |
Longitudinal mechanical properties of steel tubes
| Steel grade |
Tensile strength
MPa |
Lower yield strength Rp0.2/MPa | Elongation A/％ | |||
| S≤16mm | S＞16mm | Sample 1 | Sample 2 | Sample 3 | ||
| 16MnDG | 490~665 | ≥325 | ≥315 | ≥30 | ||
| 10MnDG | ≥400 | ≥240 | ≥35 | |||
| 09DG | ≥385 | ≥210 | ≥30 | |||
| 09Mn2VDG | ≥450 | ≥300 | ≥30 | |||
| 06Ni3MoDG | ≥455 | ≥250 | ≥30 | |||
Characteristic:
TORICH QUALITY ASSURANCE
Good surface quality
Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test
Processing:W-H W-C
Technical Delivery Conditions:Nomalizing
Widely used in the field of:Low temperature heat exchanger
Product Images:
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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 |