23B2 1.5508 - EN 10263-4-2017

Grade	23B2
European Standard Steel Grade	1.5508
Corresponding Standard	EN 10263-4-2017 Steel Rod, Bars and Wire for Cold Heading and Cold Extrusion Part 4: Technical Delivery Conditions for Steels for Quenching and Tempering
Classification	Alloy Steel

23B2 Chemical Element Composition Content (%)

Component	C	Si ^ⓔ	Mn	P	S	Cr ^ⓕ	Cu	B
Minimum Value	0.2	-	0.6	-	-	-	-	0.0008
Maximum Value	0.25	0.3	0.9	0.025	0.025	0.3	0.25	0.005

23B2 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
Bar, rod, wire; 5<d≤25	Untreated or Pickling (+U or +PE)	≤600	≥60
Bar, rod, wire; 5<d≤25	Spheroidizing or Spheroidizing and Peeling (+AC or +AC+PE)	≤490	≥66
Wire; 5<d≤10	Untreated and Cold Drawn (+U+C)	≤690	≥55
Wires; 10<d≤25	Untreated and Cold Drawn (+U+C)	≤680	≥55
Wire; 2<d≤5	Unheated, Cold Drawn, and Spheroidized (+U+C+AC)	≤480	≥68
Wire Rods; 5<d≤25	Unheated, Cold Drawn, and Spheroidized (+U+C+AC)	≤470	≥68
Wire; 2<d≤5	Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC)	≤520	≥66
Wire Rods; 5<d≤25	Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC)	≤510	≥66
Wire; 5<d≤10	Spheroidizing + Cold Drawn (+AC+C)	≤580	≥61
Wires; 10<d≤25	Spheroidizing + Cold Drawn (+AC+C)	≤570	≥61

1 Approximate Comparison Table Structural Alloy Steel

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
23B2	23B2	1.5508

3 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	Japan	International Organization for Standardization	European Standard
GB	JIS	ISO	EN
ML23B	SWRCHB223	23B2	23B2

23B2 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!