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Characteristics for grade 20Kh1M1F1BR ( 20Х1М1Ф1БР )

Grade :	20Kh1M1F1BR ( 20Х1М1Ф1БР ) ( ЭП44 20ХМФБ )
Classification :	Relaxation-resistant steel
Equivalent grades:	Is absent

Chemical composition in % for grade 20Kh1M1F1BR ( 20Х1М1Ф1БР )

0.18 - 0.25

max 0.37

0.5 - 0.8

max 0.3

max 0.03

1 - 1.5

0.05 - 0.1

0.8 - 1.1

0.7 - 1

0.05 - 0.15

max 0.06

max 0.005

Mechanical properties under Т=20^oС for grade 20Kh1M1F1BR ( 20Х1М1Ф1БР )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Bar, GOST 20072-74			780	665	14	50	590	Guenching and drawing

Brinell hardness for 20Kh1M1F1BR ( 20Х1М1Ф1БР ) (hot-rolled) , GOST 20072-74

HB 10^-1 = 229 MPa

Types of delivery of grade 20Kh1M1F1BR ( 20Х1М1Ф1БР )

В22 - Graded and shaped rolling

B23 - Sheets and Strips

В32 - Graded and shaped rolling

B33 - Sheets and Strips

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- Yield stress, [MPa]
d₅	- Specific elongation at fracture , [ % ]
y	- Reduction of area , [ % ]
KCU	- Impact strength , [ kJ / m²]
HB	- Brinell hardness , [MPa]

Physical properties :
T	- Test temperature , [Grade]
E	- Young modulus , [MPa]
a	- Coefficient of linear expansion (range 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

20Kh1M1F1BR ( 20Х1М1Ф1БР ) - Relaxation-resistant steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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