25NiCrMoV12-7
2024-05-31 08:59:29 Origin： Remark：0 Click：
Quenched and tempered alloy Steel 25NiCrMoV12-7 high temperature alloy steel is used for larger preshaped components in turbine and generator installations
MATERIAL TECHNICAL DATASHEET - 25NiCrMoV12-7
Material Category: Hardened and tempered steel
Material Specification - SEW 555 or by agreement
Melting process way - EF + Consumable electrode remelted
HS code for Customs: 7228 4000 / 7228 5000 / 7228 6000
Main Chemical composition (mass weight - %)
Carbon, C (％): 0.22 ~ 0.28
Silicon, Si (％): ≤ 0.15
Manganese, Mn (％): 0.15 ~ 0.40
Phosphorus, P (％) ≤: 0.020
Sulfur, S (％) ≤: 0.010
Chromium, Cr (％): 1.50 ~ 2.00
Molybdenum, Mo (％): 0.40 ~ 0.60
Nickel, Ni (％): 2.80 ~ 3.20
Vanadium, V (％): 0.05 ~ 0.15
Ferrum, Fe (％): balance.
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Hot working temperature /℃: 1050 ~ 850
Hardness after annealing ≤HBS: 277
Tensile strength, Rm ≥ MPa: 850 ~ 1000
Yield strength, Rp0.2 ≥ MPa: 700
Elongation, A5 ≥ (%): 12.0
Reduction of area, Z ≥ (%): 40.0
Hot working temperature /℃: 1050 ~ 850
Hardness after annealing ≤HBS: 277
Tensile strength, Rm ≥ MPa: 850 ~ 1000
Yield strength, Rp0.2 ≥ MPa: 700
Elongation, A5 ≥ (%): 12.0
Reduction of area, Z ≥ (%): 40.0
PRODUCT DESCRIPTION
The alloy is usually produced by EAF / VD / LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - Quenched and tempered.
PROFILE & DIMENSIONS AVAILABLE
Round bar / Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 8mm to 600mm
Steel sheet: thickness 1.0 ~ 4.0mm, width 10 ~ 1000mm X length 1000/2000mm - Standard size
Length: random length or based on the customer's special requirement
Forged steel shape: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to Email (sales@ccsteels.com.) or call our resident team of qualified production engineers.
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