12Cr1MoV steel plate mechanical properties 12Cr1MoV implementation standard

12Cr1MoV steel plate mechanical properties 12Cr1MoV implementation standard

12Cr1MoV steel plate has higher oxidation resistance and thermal strength. The creep limit of this steel is close to the durability strength value and has high plasticity in the case of durable tensile; The manufacturability and weldability of the steel are outstanding, but it needs to be preheated to 300 before welding, and stress relief treatment is required after welding. It is a widely used steel grade for boiler superheaters, headers and main steam ducts of high-pressure, ultra-high-pressure and subcritical power stations. At 580, it still has high thermal strength and oxidation resistance, and 12Cr1MoV steel plate has high durability and plasticity. The production process is relatively simple, and the welding performance is excellent, but it is sensitive to the normalization cooling rate. Long-term use of 580 will cause pearlitic spheroidization.

Chemical composition

Tabulation: Depu Steel Date: 2024-01-22

C	Si	Mn	Cr	Mo	V
0.08~0.15	0.17~0.37	0.40~0.70	0.90~1.20	0.25~0.35	0.15~0.30

Note:
(1): In order to improve the properties of steel, other trace alloying elements other than those in the above table can be added; This value is only for WSD690D≤80mm; The data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions of GB/T222

Tensile strength (σb/MPa): ≥490 Yield point (σs/MPa): ≥245 Elongation after fracture (δ5/%): ≤22 Section shortening rate (ψ/%): ≥50 Impact absorption work (Aku2/J): ≥71
Impact toughness value αkv (J/cm2
): ≥88 (9)
Brinell hardness (HBS100
/ 3000) (annealed or high temperature tempered state): ≤179
at room temperature: allowable tensile stress (σw/MPa): 93 allowable bending stress (σw/MPa): 112 allowable shear stress (T/MPa): 56