1). APPROXIMATE COMPARATIVE TABLE - Meterial no. 1.4116 to EN 10 088-2
D(DIN/EN)
X50 CrMoV15
USA(ASTM)
-
Japan
-
CIS
-
2). Chemical composition (in % by weight) i)
C
Cr
Mn
V
Min.
0.45
14.0
0.5
0.1
Max.
0.55
15.0
0.8
0.2
i) Special arrangements may be made within the analysis limits depending on the properties required.
3). Mechanical properties (transverse samples) at room temp.ii) to EN 10 088-2
Dimensions range
Rm
(tensile strength)
N/mm2
A5
(elongation)
%
A80
(elongation)
%
Hardness
HB
Cold-rolled strip s≦ 8mm
Hot-rolled strip s≦ 13.5mm
Max. 850
≧ 12
≧ 12
≦ 280
ii) Hardened and tempered approx. 55 HRC. Calculating tensile strength from hardness is subject to wide fluctuations.
4) Heat treatment Hardened
Hardening temperature ℃
Cooling
Microstructure
950-1050
Oil/ air
Martensite (transformation structure)
5) Physical properties
Density
Kg/dm3
Modulus of elasticity in kN/mm2at
Thermal expansion in 10-6.K-1
20℃
100℃
200℃
300℃
400℃
100℃
200℃
300℃
400℃
7.7
215
212
207
200
190
10.5
11.0
11.0
11.5
Thermal conductivity at 20℃ W/m.K
Specific heat capacity at 20℃ J/kg.C
Electrical resistivity at 20℃ Ω .mm2/m
Magnetisability
30
460
0, 65
Present
6)Surface finish
1 E (II a), 2 B (III c), 2 R (III d), 2 G (IV)
7)Edge finish
Untrimmed, cut edges, dressed edges on request
8)Chemical resistance
Our publication“Chemical Resistance of NIROSTA Steels”contains tables giving some guide to chemical resistance.
NIROSTA 4116 belongs to group 1 in the publication.
9)Processing
This material can be heat treated to achieve high strength values due to its high C content.
Machining is comparable to that of an unalloyed structural steel. Tools should be made of good quality high-speed steel or carbide.
Heat tints or scale from heat treatment reduce corrosion resistance and should be removed chemically (e.g. pickling baths or pickling pastes) or mechanically (e.g. by grinding or blasting with glass beads or iron- and sulfur-free quartz sand.
NIROSTA 4116 can be polished.
10)Welding
Weldability: NIROSTA 4116 is not suitable for welding.
11)Applications
NIROSTA 4116 is used for parts which are subject to wear, e.g. for high-quality table and kitchen knives, penknives blades and meat knives. Adding vanadium improves wear resistance. The addition of Mo improves corrosion resistance compared to standard martensitics.