20Cr4 1.7027 - EN 10277-2018

Grade	20Cr4
European Standard Steel Grade	1.7027
Corresponding Standard	EN 10277-2018 Bright steel products - Technical delivery conditions
Classification	Alloy Steel

20Cr4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu
Minimum Value	0.17	0.15	0.6	-	-	0.9	-
Maximum Value	0.23	0.4	0.9	0.025	0.035	1.2	0.4

20Cr4 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Hardness HBW
16<t≤100	Soft Annealing and Descaling (+A+SH)	≤197
16<t≤100	Processed to pearlite-ferrite structure and hardness range + cold drawing (+FP+C)	140~240

1 Approximate Comparison Table structural alloy steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

BS EN/BS

20Cr
20CrH

A20202

SCr420

SCr420
SCr420H
SCR420HRCH

SCr420

5120

G51200

20Cr4

1.7027

18C3

20Cr4

1.7027

20Х

527A20

2 Approximate Comparison Table

Japan	International Organization for Standardization	European Standard
JIS	ISO	EN	Numerical Grade
SCR420HRCH	20Cr4	20Cr4	1.7027

20Cr4 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"!