Seamless Pipe For Nuclear Power Station

Seamless Pipe For Nuclear Power Station

Seamless pipes are commonly used in nuclear power stations due to their reliability, strength, and ability to withstand high-pressure and high-temperature conditions.

Implement standards or specifications including GB 24512.1, GB 24512.1, RCCM series, ASME series.


Nuclear power stations require reliable and durable piping systems to ensure the safe and efficient operation of the facility. Seamless pipes are known for their high reliability and resistance to leaks, making them suitable for critical applications in nuclear power stations.

Strength and Safety

Seamless pipes are manufactured without any welded joints, which eliminates the weak points that can be susceptible to failure. This enhances the overall strength and safety of the piping system, which is crucial in nuclear power stations where the containment of radioactive materials is of utmost importance.

High-Pressure and High-Temperature Resistance : Nuclear power stations operate under high-pressure and high-temperature conditions. Seamless pipes are capable of withstanding these extreme conditions without compromising their structural integrity, making them suitable for transporting steam, coolant, and other fluids within the facility.

Corrosion Resistance

Corrosion resistance is essential in nuclear power stations, as the fluids and chemicals involved can be corrosive. Depending on the specific requirements, seamless pipes made from corrosion-resistant materials such as stainless steel or alloy steel may be used to ensure long-term durability and safety.

Implement standards or specifications including GB 24512.1, GB 24512.1, RCCM series, ASME series. We are capable of producing Grade 2 and Grade 3 steel pipe with OD less than or equal to 273mm, which are used for the main steam pipeline and main water-supply pipeline with common sizes. Products can be ordered in accordance with the client’s requirements.

Usage OD(mm) WT(mm) Steel Grade Specification Typical Application
Seamless Steel Pipe used for Nuclear Power Station 48 - 720 4.5 - 130 HD245, HD245Cr GB 24512.1 Carbon and alloy seamless steel pipe for Nuclear Station Island and Conventional Island
HD265, HD265Cr GB 24512.2
HD280, HD280Cr
SA106B/C ASME SA-106/SA-106M
P11 ASME SA-335/SA-335M

Nuclear power is a technology which extracts usable energy from atomic nuclei via controlled nuclear reactions – normally atomic fission.

GB24512.1 seamless tubes and pipes for nuclear power plant.

Chemical Composition of GB24512.1

Grade C Si Mn P S Cr Mo Ni Sn Cu
HD245 ≤0.22 0.15-0.39 ≤1.04 ≤0.025 ≤0.02 ≤0.25 ≤0.15 ≤0.25 ≤0.030 ≤0.20
HD245Cr ≤0.22 0.15-0.39 ≤1.04 ≤0.025 ≤0.02 0.18-0.33 ≤0.15 ≤0.25 ≤0.030 ≤0.20
HD265 ≤0.22 ≤0.44 ≤1.44 ≤0.025 ≤0.02 ≤0.3 ≤0.08 ≤0.3 ≤0.030 ≤0.20
HD265Cr ≤0.22 ≤0.44 ≤1.44 ≤0.025 ≤0.02 0.15~0.3 ≤0.08 ≤0.3 ≤0.030 ≤0.20
HD280 ≤0.22 0.1-0.4 0.8-1.6 ≤0.025 ≤0.02 ≤0.25 ≤0.1 ≤0.5 ≤0.030 ≤0.20
HD280Cr ≤0.22 0.1-0.4 1.0-1.6 ≤0.025 ≤0.02 0.15-0.33 ≤0.1 ≤0.5 ≤0.030 ≤0.20

GB24512.2 are alloy steel seamless tubes and pipes for power plant.

Chemical Composition of GB24512.2

Grade C Si Mn P S Cr Mo Ni Nb N Cu V
HD12Cr2Mo 0.07-0.16 ≤0.54 0.37-0.73 ≤0.03 ≤0.02 1.9-2.6 0.86-1.24 ≤0.30 - - ≤0.20 ≤0.08
HD15Ni1MnMoNbCu 0.09-0.18 0.21-0.54 0.76-1.24 ≤0.030 ≤0.020 0.14-0.35 0.21-0.44 0.95-1.35 0.010-0.030 ≤0.020 0.45-0.85 ≤0.02

Mechanical Capacity of GB24512.2

Grade Tensile   Strength, [MPa] Yeild Strength,   [MPa] Elongation (%)
HD12Cr2Mo 450-600 ≥280 ≥22
HD15Ni1MnMoNbCu 620-780 ≥440 ≥19

RCC-M steel pipe for nuclear industry equipment.

Chemical Composition of RCC-M

Grade C Si Mn P S Cr Mo Ni Al Ceq Cu Sn
TU48C ≤0.24 0.09-0.40 0.60-1.30 ≤0.040 ≤0.040 - - - - - ≤0.25 ≤0.030
P280GH ≤0.22 0.10-0.40 0.80-1.60 ≤0.025 ≤0.020 ≤0.25 ≤0.10 ≤0.50 0.020-0.050 ≤0.48 ≤0.25 ≤0.030

Mechanical Capacity of RCC-M

Grade Tensile Strength, [MPa] Yeild Strength, [MPa] Elongation (%)
TU48C 470-570 ≥275 Rm(A-2)≥10500
P280GH 470-570 ≥275 Rm(A-2)≥10500

The process takes place in a nuclear-fuelled power plant, where – much like in a fossil-fuelled power plant – water is turned into steam, which drives turbine generators to produce electricity. The difference between the two power plants is the heat source. Nuclear power produces electricity by splitting uranium atoms which generate phenomenal heat. This is called fission. This heat is used to create the steam which powers the generators. There is no combustion in a nuclear reactor, just the constant splitting of atoms which produces manageable heat.

Either a pressurised water reactor or boiling water reactor is used, but regardless which type of reactor is used to generate heat, the conditions under which they do are extremely hostile. This means that the finest Stainless Steel pipes and tubing are required so that they can deal with constantly high pressures and temperatures.

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.

Ni-Hard Wearback Pipes Ni-Hard Wearback Pipes