3/20/2014 20NiCrMo2-2 / 1.
6523 - steel equivalent, mechanical properties, chemical composition
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20NiCrMo2-2 ( 1.6523 )
Grade : 20NiCrMo2-2
Number: 1.6523
EN 10084 : 2008 Case hardening steels. Technical delivery conditions
EN 10263 - 3 : 2001 Steel rod, bars and wire for cold heading and cold extrusion. Technical delivery
Standard: conditions for case hardening steels
EN 10297 - 1 : 2003 Seamless circular steel tubes for mechanical and general engineering
purposes. Non-alloy and alloy steel tubes
Classification: Alloy special steel
Equivalent grades: Go here
Che m ic a l c om pos it ion % of gr a de 2 0 NiCr M o2 - 2 ( 1 .6 5 2 3 )
Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser, other than for
the purpose of finishing the heat.
Steels with improved machinability as a result of the addition of lead or higher sulfur contents, depending on the manufacturing
process up to around 0.1 % S, may be supplied on request. In this case, the upper limit of the manganese content may be
increased by 0.15 %
C Si Mn Ni P S Cr Mo
0.17 - 0.23 max 0.4 0.65 - 0.85 0.4 - 0.7 max 0.025 max 0.035 0.35 - 0.7 0.15 - 0.25
M e c ha nic a l pr ope r t ie s of gr a de 2 0 NiCr M o2 - 2 ( 1 .6 5 2 3 )
Nominal thickness (mm): to 16
Rm - Tensile strength (MPa) hardening and
1100
tempering at 200
Rm - Tensile strength (MPa) (+AC) 590
Z - Reduction in cross section on fracture (%) 57-62
Brinell hardness (HBW): (+A) 212
Brinell hardness (HBW): (+TH) 161 - 212
Brinell hardness (HBW): (+FP) 149 - 194
Equiva le nt gr a de s of gr a de 2 0 NiCr M o2 - 2 ( 1 .6 5 2 3 )
Warning! Only for reference
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3/20/2014 20NiCrMo2-2 / 1.6523 - steel equivalent, mechanical properties, chemical composition
Germany France England Italy Spain Finland Russia Inter
DIN,WNr AFNOR BS UNI UNE SFS GOST ISO
21NiCrMo2 20NCD2 805M20 20NiCrMo2 20NiCrMo2 506 20KHGNM 20NiCrMo2
M e c ha nic a l pr ope r t ie s
M e c ha nis c he Eige ns c ha f t e n
Ca r a c t e r is t ique s m e c a nique s
R eH Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d�elasticite minimale
R m Tensile strength / Zugfestigkeit / Resistance a la traction
A Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal
J Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc
He a t t r e a t m e nt c ondit ions
+A Soft annealed
+AC Annealed to achieve spheroidization of the carbides
+AR As rolled
+AT Solution annealed
+C Cold drawn / hard
+CR Cold rolled
+FP Treated to ferrite-pearlite structure and hardness range
+I Isothermal annealing
+LC Cold drawn / soft
+M Thermo mechanical rolling
+N Normalized
+NT Normalized and tempered
+P Precipitation hardened
+PE Peeled
+QA Air quenched and tempered
+QL Liquid quenched and tempered
+QT Quenched and tempered
+S Treated to improve shearability
+SH As rolled and turned
+SR Cold drawn and stress relieved
+T Tempered
+TH Treated to hardness range
+WW Warm worked
+U Untreated
Chemical composition of 20NiCrMo2-2 (1.6523). Equivalent grades of 20NiCrMo2-2 (1.6523). Standards of 20NiCrMo2-2
(1.6523).
Properties of 20NiCrMo2-2 (1.6523). Hardness of 20NiCrMo2-2 (1.6523). Strength of 20NiCrMo2-2 (1.6523). Elongation of
20NiCrMo2-2 (1.6523).
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