19MnB4

Grade :	19MnB4
Number:	1.5523
Standard:	EN 10269 : 1999   Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
Classification:	Alloy special steel
Equivalent grades:	Go here

Chemical composition %   of grade   19MnB4 (1.5523)

C	Si	Mn	P	S	Al	B
0.17 - 0.24	max   0.4	0.8 - 1.15	max   0.035	max   0.035	max   0.02	0.0008 - 0.005

Mechanical properties of grade   19MnB4 (1.5523)

Rm - Tensile strength (MPa) (+AC)	520

Nominal thickness (mm):	to 16
Rm - Tensile strength (MPa) (+QT)	800-950

Nominal thickness(mm):	to 16
Rp0.2 0.2% proof strength (MPa) (+QT)	640

Temperature ° C	+20
KV - Impact energy (J) (+QT)	40

Nominal thickness (mm):	to 16
A - Min. elongation at fracture (%) (+QT)	14

Z - Reduction in cross section on fracture (%) (+AC)	64

Nominal thickness (mm):	to 16
Z - Reduction in cross section on fracture (%) (+QT)	52

Equivalent grades of grade   19MnB4 (1.5523) Warning! Only for reference

France AFNOR

20MB5

Mechanical properties
Mechanische Eigenschaften
Caracteristiques mecaniques

ReH	Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d锟絜lasticite minimale
Rm	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

Heat treatment conditions

+A	Soft annealed
+AC	Annealed to achieve spheroidization of the carbides
+AR	As rolled
+AT	Solution annealed
+C	Cold drawn
+CR	Cold rolled
+FP	Treated to ferrite-pearlite structure and hardness range
+LC	Skin passed
+N	Normalized
+NT	Normalized and tempered
+P	Precipitation hardened
+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
+TH	Treated to hardness range

Chemical composition of   19MnB4 (1.5523). Equivalent grades of   19MnB4 (1.5523). Standards of   19MnB4 (1.5523).
Properties of   19MnB4 (1.5523). Hardness of   19MnB4 (1.5523). Strength of   19MnB4 (1.5523). Elongation of   19MnB4 (1.5523).