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12Cr1MoVG alloy pipe

12Cr1MoVG is a high-strength, low-alloy steel often used in the manufacture of boiler tubes and other high-temperature components due to its excellent creep resistance and good weldability.

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Carbon steel pipe

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12Cr1MoVG

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GB 5310 12Cr1MoVG Seamless steel tubes and pipes for high pressure boiler

12Cr1MoVG is a Cr-Mo-V low alloy heat-resistant steel introduced from the Soviet Union in the 1950s and 1960s. Vanadium is an element that reduces the y-phase region. When dissolved in y-fe, it will inhibit the transformation of ADI to pearlite, which is beneficial to the formation of ADI. The total amount of alloy in 12Cr1MoVG steel is only one half of that of 2.25Cr-1Mo steel, but the endurance strength (580 ° C) is 1.4 times of that of 2.25Cr-1Mo steel. Similar steel grades widely used abroad include ASTM a405 p24 in the United States, bs3604 in the United Kingdom, DIN 13crmov42 in Germany, etc.

GB 5310 12Cr1MoVG High Pressure Boiler Tubes Quick Details

Manufacture:Seamless process ,Hot-finished or Cold-finished
Wall thickness(WT): 2.8 mm-150 mm.
Outer diameter (OD): 23 mm-1500 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded

Additional Info

Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required

Manufacturing methods

(1)Steel smelting method
GB 5310 12Cr1MoVG steel will be smelted by electric furnace plus furnace refining, oxygen converter plus furnace refining or electroslag remelting method.

(2)Manufacturing methods and requirements for tube blanks
The tube blank can be produced by continuous casting, die casting or hot rolling (forging).
Forging and rolling: the initial forging temperature is 1180-1145 ℃, and the final forging temperature is greater than 850 ℃. After forging, stack cooling is required.

(3)Manufacturing method of steel tube
GB 5310 12Cr1MoVG Steel tubes shall be manufactured by hot rolling (extrusion, expansion) or cold drawing (rolling).

Cold and hot processing: small diameter steel pipes can be cold bent without heat treatment after bending. Large diameter thin-walled tube can be cold bent, after bending, it needs to do high temperature heat treatment. Large diameter thick wall pipe needs hot bending. The heating temperature of the hot bend is 980 ° C, and the final bending temperature is more than 800 ℃. After bending, it needs normalizing and adding back

Classification, code
a) Hot rolled steel pipe, codenamed WH;
b) Cold drawn steel pipe, codenamed WC.

Delivery status
The steel tubes shall be delivered in a heat treated condition.

Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.

Max length: 16000mm, also U bending can be offered.

Note:
This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.

12Cr1MoVG is a low-alloy heat-resistant steel that is commonly used in the construction of boilers, pressure vessels, and piping systems operating at elevated temperatures and pressures. It is characterized by its high creep resistance, good thermal conductivity, and excellent corrosion resistance. The "12" in its designation indicates the percentage of chromium in its composition, while "1" and "Mo" represent the presence of molybdenum and vanadium, respectively. This steel is widely used in various industries where high-temperature and high-pressure conditions are present, making it suitable for applications in power generation, petrochemical, and chemical processing.

What is 12Cr1MoV material?

12Cr1MoV steel is normalized and tempered at high temperatures, where its normal metal organization includes ferrite and pearlite (or local bainite). Compared with the same type of low-alloy pearlitic heat-resistant steel, 12Cr1MoV shows better processability and much higher thermal strength.

12Cr1MoVG is a type of high-pressure boiler steel used in the production of boilers and pressure vessels. It has a high temperature strength, good thermal conductivity, and excellent corrosion resistance. It is commonly used in the manufacturing of power plant boilers, industrial boilers, and pressure vessels in the petrochemical industry.

12Cr1MoVG is a Cr-Mo-V low alloy heat-resistant steel introduced from the Soviet Union in the 1950s and 1960s. Vanadium is an element that reduces the y-phase region. When dissolved in y-fe, it will inhibit the transformation of ADI to pearlite, which is beneficial to the formation of ADI. The total amount of alloy in 12Cr1MoVG steel is only one half of that of 2.25Cr-1Mo steel, but the endurance strength (580 ° C) is 1.4 times of that of 2.25Cr-1Mo steel. Similar steel grades widely used abroad include ASTM a405 p24 in the United States, bs3604 in the United Kingdom, DIN 13crmov42 in Germany, etc.

12Cr1MoVG material equivalent

The material 12Cr1MoVG is commonly used in the production of high-pressure boiler tubes and piping systems. Its equivalent materials in other standards include:

ASTM A387 Grade 11 Class 2
ASME SA387 Grade 11 Class 2
EN 10216-2 13CrMo4-5
JIS G4109 SCM415
GB/T 3077 12Cr1MoV

What is 12Cr1MoVG equivalent to ASME?

The equivalent material to 12Cr1MoVG in the ASME standard is ASTM A335 P11. Both materials have similar chemical compositions and mechanical properties, making them suitable for use in high-temperature and high-pressure applications, such as in the construction of boilers and piping systems.

Manufacturing methods

(1)Steel smelting method

GB 5310 12Cr1MoVG steel will be smelted by electric furnace plus furnace refining, oxygen converter plus furnace refining or electroslag remelting method.

(2)Manufacturing methods and requirements for tube blanks

The tube blank can be produced by continuous casting, die casting or hot rolling (forging).
Forging and rolling: the initial forging temperature is 1180-1145 ℃, and the final forging temperature is greater than 850 ℃. After forging, stack cooling is required.

(3)Manufacturing method of steel tube

GB 5310 12Cr1MoVG Steel tubes shall be manufactured by hot rolling (extrusion, expansion) or cold drawing (rolling). Cold and hot processing: small diameter steel pipes can be cold bent without heat treatment after bending. Large diameter thin-walled tube can be cold bent, after bending, it needs to do high temperature heat treatment. Large diameter thick wall pipe needs hot bending. The heating temperature of the hot bend is 980 ° C, and the final bending temperature is more than 800 ℃. After bending, it needs normalizing and adding back.

Heat treatment for GB 5310 12Cr1MoVG High Pressure Boiler Tubes

980 ℃～1 020 ℃,Normalizing，980 °C ~ 1 020 °C normalizing, when the wall thickness is greater than 30 mm, forced cooling; 720 °C ~ 760 °C tempering.

Chemical composition

Element Content (%)

Carbon (C)	0.08 - 0.15
Silicon (Si)	0.17 - 0.37
Manganese (Mn)	0.40 - 0.70
Phosphorus (P)	≤ 0.035
Sulfur (S)	≤ 0.035
Chromium (Cr)	0.90 - 1.20
Molybdenum (Mo)	0.25 - 0.35
Vanadium (V)	0.15 - 0.30

Properties

Property Value

Tensile Strength	470 - 640 MPa
Yield Strength	≥ 255 MPa
Elongation	≥ 21%
Impact Energy	≥ 47 J
Hardness (HB)	≤ 179

Cr12MoV steel is a widely used cold-work die steel with good hardenability and wear resistance.

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