Quality X12CrS13 Martensitic Technical card 2018

Number 1.4005 Stainless Steel Lucefin Group

Chemical composition
C% Si% Mn% P% S% Cr% Mo%
max max max max
0,06-0,15 1,00 1,50 0,040 0,15-0,35 12,0-14,0 0,60 EN 10088-3: 2014
± 0.01 + 0.05 + 0.04 + 0.005 ± 0.02 ± 0.15 + 0.03
Product deviations are allowed
Temperature °C
Melting range Hot-forming Subcritical Soft annealing Full annealing MMA welding – AWS electrodes
annealing +A pre-heating after welding
1530-1480 1190-925 790-730 780-750 870-840 cooling 300 stress-relieving
air air 15 °C/h to 590, 600
Isothermal Quenching Tempering Stress-relieving then air joint with steel
annealing +I +Q +T +SR carbon CrMo alloyed stainless
885-830 cooling 1010-980 680- 660 250-210 E309 E309 E309-E308
30 °C/h to 720, oil/polymer fast cooling air cosmetic welding
then air air in air E410 - E309
Transformation temperature during heating Ac1 ~ 820, Ac3 ~ 930 and during cooling Ms ~ 330, Mf ~ 180
Chemical treatment ▪ Pickling (10 - 15% HNO3) + (0.5 – 1.5 HF) cold
Mechanical properties
Heat-treated material 10088-3: 2014 in conditions 1C, 1E, 1D, 1X, 1G, 2D
size Testing at room temperature
mm R Rp 0.2 A% Kv2 +20 °C HBW a) a) for information only
from to N/mm2 N/mm2 min min J min max
730 max - - - 220 +A annealed material
160 650-850 450 12 - - +QT650 quenched and tempered
Bright bars of heat-treated material EN 10088-3: 2014 in conditions 2H, 2B, 2G, 2P
size Testing at room temperature
mm R HBW a) R Rp 0.2 A% Kv2 +20 °C
from to N/mm max max
2 N/mm2 N/mm2 min min J min
10 b) 880 280 700-1000 550 8
10 16 880 280 700-1000 500 8
16 40 800 250 650-930 450 10
40 63 760 230 650-880 450 10
63 160 730 220 650-850 450 12
+A annealed material +QT650 quenched and tempered material
a) for information only
b) In the range of 1 mm < d < 5 mm, values are valid only for rounds – the mechanical properties of non round bars of < 5 mm of

thickness have to be agreed at the time of request and order

Forged (ASTM A 473-17a steel ASTM 416)
size Testing at room temperature
mm R Rp 0.2 A% Z% Kv +20 °C HB HRC
from to N/mm2 min N/mm2 min min min J min max min
485 275 20 45 - 223 - +A annealed material
- - - - - - 35 Quenching at 955 °C in air
Table of tempering values at room temperature on rounds of Ø 10 mm after quenching at 980°C in oil
R N/mm2 1490 1450 1420 1410 1430 1450 1420 1150 860 740 690
Rp 0.2 N/mm2 1210 1170 1150 1150 1160 1180 1140 870 650 550 500
A % 10.8 10.8 10.9 12.0 12.5 13.0 16.0 16.5 18.0 20.0 21.5
Kv J 25 30 26 19 18 17 18 20 31 49 90
Tempering °C 200 250 300 350 400 450 500 550 600 650 700
Effect of cold-working (hot-rolled +QT+C). Approximate values
R N/mm2 720 740 760 770 780 785 800 820 830 835 840
Rp 0.2 N/mm2 480 625 630 650 660 680 700 730 735 750 760
A % 19 18 18 16 16 16 15 15 14 14 14
Reduction % 0 7 8 10 11 12 13 14 15 16 17
X12CrS13 n° 1.4005 martensitic stainless steel Lucefin Group
Thermal expansion 10-6 ● K-1 ► 10.5 11.0 11.5 12.0 12.2 12.7
Modulus of elasticity longitudinal GPa 215 212 205 200 190
Poisson number v 0.235 0.210
Electrical resistivity Ω ● mm2/m 0.60
Electrical conductivity Siemens●m/mm2 1.67
Specific heat J/(Kg●K) 460
Density Kg/dm3 7.70
Thermal conductivity W/(m●K) 30
Relative magnetic permeability µr max 750
°C 20 100 200 300 400 600 800
The symbol ►indicates temperature between 20 °C and 100 °C, 20 °C and 200 °C …..
For full annealed material Coercive Force Hc 480 A/m. For heat treated for max. hardness Coercive Force Hc 2900 A/m.
Corrosion resistance Atmospheric Chemical x steam, gasoline, fuel
Fresh water industrial marine medium oxidizing reducing oil, alcohol, ammonia
x
Magnetic yes
Machinability high
Hardening by quenching
Service temperature in air continuous service up to 675 °C;intermittent service up to 760 °C
Europe USA USA China Russia Japan India Republic of Korea
EN UNS ASTM GB GOST JIS IS KS
X12CrS13 S41600 416 Y1Cr13 SUS 416 STS 416

AISI 416 steel – T.T.T. diagram (Transformation – Time – Temperature)