GOST9941-81 12X18H12T Seamless Boiler Tube, Russian Standard, High Nickel Content，TY-14-3P-55-2001
Price:
Negotiable
MOQ:
500 KGS
Delivery Time:
Depends on order quantity
Brand:
YUHONG
Product Description
GOST9941-81 12X18H12T Seamless Boiler Tube, Russian Standard, High Nickel Content,TY-14-3P-55-2001
GOST 9941-81 12X18H12T seamless pipe is a titanium-stabilized austenitic stainless steel seamless pipe under the Russian standard. It is widely used in chemical, power, and other fields requiring high-temperature and corrosive environments due to its excellent corrosion resistance and high-temperature resistance. Although this standard has been superseded by GOST 9941-2022, it is still widely recognized and used in actual trade and engineering.
Material grade: 12X18H12T. This is an austenitic grade stainless steel. Its core characteristic is the addition of titanium (Ti) as a stabilizing element to prevent intergranular corrosion during welding or high-temperature service.
Its international equivalent is mainly AISI 321, but there are significant differences. 12X18H12T has a nickel content as high as 11%, resulting in a much higher price in addition to performance differences.
| GOST 9941-81 12X18H12T Chemical Composition (Mass Fraction, %) | |
| Element | Composition (% by weight) |
| Carbon (C) | ≤ 0.12 |
| Silicon (Si) | ≤ 0.8 |
| Manganese (Mn) | ≤ 2.0 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 11.0 – 13.0 |
| Titanium (Ti) | 5×C% to 0.70 |
| Sulfur (S) | ≤ 0.020 |
| Phosphorus (P) | ≤ 0.035 |
| Iron (Fe) | Balance |
| GOST 9941-81 12X18H12T Mechanical Properties | |
| Property | Value |
| Tensile Strength (min.) | ≥ 510 – 549 MPa |
| Yield Strength (0.2% offset, min.) | ≥ 196 – 235 MPa |
| Elongation (min.) | ≥ 35% |
| Heat Treatment | Solution Anneal |
Applications:
- Chemical and Petroleum Industry: Widely used in the manufacture of heat exchangers, condensers, and reaction equipment, capable of withstanding various corrosive chemicals.
- Power and Energy Sector: Used in steam boilers, power plant cooling systems, and some equipment in nuclear power plants, capable of operating continuously in a temperature range of -196°C to +600°C.
- Marine Engineering: Used in the manufacture of marine heat exchangers and pipes, resistant to seawater corrosion.
- Other Industries: Includes equipment in food processing, and water treatment industries requiring hygiene and corrosion resistance.
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Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Equipment Dept. (Marketing Director)