Location » Home » Grades > Stainless Steels - Special Steels > Z12CNDV12-03

AFNOR Z12CNDV12-03 Details

Z 12 CNDV 12-03 is a new type of martensitic stainless steel for the last-stage blades of large-capacity nuclear and thermal power turbines. The deformation behavior of this steel was studied by thermal compression experiments that performed on a Gleeble-3500 thermal simulator at a temperature range of 850°C to 1200°C and a strain rate of 0.01s-1 to 20s-1. When the deformation was performed at high temperature and low strain rate, a necklace type of microstructures was observed, the plastic deformation mechanism is grain boundary slip and migration, when at low temperature and lower strain rate, the slip bands were observed, the mechanism is intracrystalline slips, and when at strain rate of 20s-1, twins were observed, the mechanism are slips and twins. The Arrhenius equation was applied to describe the constitutive equation of the flow stress. The accuracy of the equation was verified by using the experimental data and the correlation coefficient R2 = 0.9786, and the equation can provide reasonable data for the design and numerical simulation of the Z12CNDV12-03 forging process.

Z12CNDV12-03 Application:Iron and steel. Stainless steel for high temperature application

Category Type Grade Microstructure Designations
Grades Stainless Steels - Special Steels Z12CNDV12-03 Martensite France - AFNOR , NF A35-578 - Iron and steel. Stainless steel for high temperature application

Chemical composition(wt.%) of Z12CNDV12-03 grade: NF A35-578

Elements Min.(≥) Max.(≤)
C 0.08 0.13
Si - 0.40
Mn 0.50 0.90
P - 0.030
S - 0.025
Cr 11.00 12.50
Ni 2.00 4.00
N 0.020 0.040
V 0.25 0.40

Mechanical properties of grade Z12CNDV12-03 NF A35-578

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
358 (≥) 787 (≥) 44 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade Z12CNDV12-03 NF A35-578

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
381 (≥) 994 (≥) 41 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
751 582 485

Z12CNDV12-03 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
Z12CNDV12-03 AFNOR France
Iron and steel. Stainless steel for high temperature application
Z12CNDV12-03 AFNOR France
Iron and steel. Stainless steel for high temperature application
Z12CNDV12-03 AFNOR France
Iron and steel. Stainless steel for high temperature application
Z12CNDV12 Air 9160/C AFNOR France
wrought steels used in aeronautical constructions

Relevant products

Enquiry