30MnB4 1.5526 - EN 10263-4-2017

Grade	30MnB4
European Standard Steel Grade	1.5526
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

30MnB4 Chemical Element Composition Content (%)

Component	C	Si ^ⓔ	Mn	P	S	Cr ^ⓕ	Cu	B
Minimum Value	0.27	-	0.8	-	-	-	-	0.0008
Maximum Value	0.32	0.3	1.1	0.025	0.025	0.3	0.25	0.005

30MnB4 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
Bars, rods, wires; 5<d≤40	Spheroidizing or Spheroidizing and Peeling (+AC or +AC+PE)	≤570	≥63
Wire; 2<d≤5	Unheated, Cold Drawn, and Spheroidized (+U+C+AC)	≤560	≥65
Wire; 5<d≤40	Unheated, Cold Drawn, and Spheroidized (+U+C+AC)	≤550	≥65
Wire; 2<d≤5	Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC)	≤600	≥63
Wire; 5<d≤40	Unheated, Cold Drawn, Spheroidized, and Quenched Rolling (+U+C+AC+LC)	≤590	≥63
Wire; 5<d≤40	Spheroidizing + Cold Drawn (+AC+C)	≤670	≥58

1 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
30MnB4	30MnB4	1.5526

30MnB4 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"!