20MnB5 1.5530 - EN 10132-2021

Grade	20MnB5
European Standard Steel Grade	1.5530
Corresponding Standard	EN 10132-2021 Cold rolled narrow steel strip for heat treatment - Technical delivery conditions
Classification	Alloy Steel

20MnB5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cu	B
Minimum Value	0.17	-	1.1	-	-	-	0.0008
Maximum Value	0.23	0.4	1.4	0.025	0.035	0.4	0.005

① 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. All reasonable precautions shall be taken to prevent the addition, from scrap or other material used in manufacture, of such elements which affect the hardenability, mechanical properties and application.

20MnB5 Mechanical Properties

Delivery condition*	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
annealed (+A) or annealed and skin passed(+LC)	≤540	≤430	≥20	HV ≤170
cold rolled(+CR)	Agreed Upon at Time of Order			Agreed Upon at Time of Order

• The elongation values in the table are for a gauge length of 80 mm.
• +A=annealed，+LC=annealed and skin passed，+CR=cold rolled，+QT=quenched and tempered

1 Approximate Comparison Table

Japan	International Organization for Standardization	European Standard
JIS	ISO	EN	Numerical Grade
SWRCHB620	20MnB5 23MnB5 26MnB5 34MnB5	20MnB5 23MnB5 26MnB5 34MnB5	1.5530

2 Approximate Comparison Table structural alloy steel

Germany	France	European Standard		United Kingdom
DIN EN/DIN	NF EN/NF	EN	Numerical Grade	BS EN/BS
19MnB4	20MB5	20MnB5	1.5530	170H20

3 Approximate Comparison Table structural alloy steel

China	European Standard
GB	EN
25MnB	20MnB5

4 Approximate Comparison Table

Japan	International Organization for Standardization	European Standard
JIS	ISO	EN
SWRCHB620	20MnB5	20MnB5

20MnB5 Corresponding Standards(Same grade name, different standards)

1	EN 10083-3-2006
	20MnB5 1.5530
2	ISO 683-2-2016
	20MnB5
3	EN ISO 683-2-2018
	20MnB5
4	ISO 4954-2018
	20MnB5
5	EN 10132-2021
	20MnB5 1.5530
6	NF EN 10083-3-2006
	20MnB5 1.5530 (20MB5)
7	ISO 4954-1-2024
	20MnB5

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