X21CrMoNiV12-2 datasheet,X21CrMoNiV12-2 chemical,X21CrMoNiV12-2 heat treatment
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X21CrMoNiV12-2
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Material X21CrMoNiV12-2 datasheet, X21CrMoNiV12-2 Chemical compositions, X21CrMoNiV12-2 mechanical properties from Steelmaking, ESR melting, Hot blooming, UT, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working or Machined. Technical specifications - ISO / TR 4956 - 1984, 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.

TECHNICAL DATA SHEET - Alloy X21CrMoNiV12-2


OFFICIAL TEST CERTIFICATE: issued by TUV - SGS BV
MATERIAL CATEGORY: High temperature alloy steel for internal combustion engine
MATERIAL SPECIFICATIONS: ISO / TR 4956 - 1984
CHEMICAL COMPOSITION (WEIGHT %)
C (%):     0.17 ~ 0.25
Si (%):     ≤ 0.50
Mn (%):   ≤ 1.00
P (%)≤:   0.030
S (%)≤:   0.025
Cr (%):    11.0 ~ 12.5
Ni (%):     0.30 ~ 1.00
Mo (%):   0.70 ~ 1.20
V (%):      0.20 ~ 0.35
MECHANICAL PROPERTIES UNDER ROOM TEMP.  
Condition of heat treatment: Quenched and tempered
Tensile strength, σb ≥/MPa: 780 ~ 930
Yield strength, σ0.2 ≥/MPa: 590
Elontation, δ ≥(%): 14.0
Reduction of area, ф ≥(%): -
Hardness | HBW: 225 ~ 280
PRODUCT DESCRIPTION
The alloy is usually produced by EAF & AOD followed by electroslag remelting (ESR / VAR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
FORMS AND SHAPES
Round bar (Diameter): 5.5 ~ 650mm
Square bar / Flat bar: 10 ~ 650mm
Wire rod (Diameter): 0.10 ~ 16mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forging piece: Different shapes based on OEM.

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