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Steel 45GL

Steel 35KhGFL (35KhGF)

30ХГФРЛ steel

Steel 30ХГСФРЛ

Steel 30Х3С3ГМЛ

Steel 12Х2НМЛ (VKL-3М)

Steel 16Х3МФЛ

Steel 15Х1М1ФЛ

Steel 13KhNDFTL

Steel 12Х7Г3СЛ

Steel 12Х2НВМЛ (VKL-3)

Steel 12DKhN1MFL

Steel 08GDNL (SL-30)

Steel 03N12H5M3TUL

Steel 03N12H5M3TL

Steel 25Х2ГНМФЛ

Steel 23ХГСС2МФЛ

Steel 27Х5GSML

Steel 20Х3МВФЛ (ЭИ415Л)

20GFL steel (20G1FL)

Designation

Name	The value
Name	The value
Designation GOST Cyrillic	45ГЛ
Designation GOST Latin	45GL
Transliteration	45GL
By chemical elements	45Mn

Description

Steel 45GL used: for the manufacture of castings of blocks, wheels, sprockets, jaw clutch, the large gear rims and other parts requiring high hardness and strength.

Standards

Name	Code	Standards
Name	Code	Standards
Steel castings	В82	GOST 977-88, TU 24-1-12-181-75

Chemical composition

Standard	C	S	P	Mn	Si	Fe
Standard	C	S	P	Mn	Si	Fe
GOST 977-88	0.4-0.5	≤0.04	≤0.04	0.8-1.2	0.2-0.5	Rest

Fe is the basis.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d	y, %	KCU, kJ/m²
Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d	y, %	KCU, kJ/m²
Hardening in air, 840-860 °C + vacation at 600-650 °C, air cooling
100	≥334	≥628	≥13	≥20	≥285
Normalization at 870-890 °C + vacation at 570-600 °C, air cooling
100	≥334	≥579	≥14	≥25	≥285

Description mechanical marks

Name	Description
Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness

Technological properties

Name	The value
Name	The value
Weldability	limited weldability
Склонность к отпускной хрупкости	tend not
Flock-sensitive sensitivity	not sensitive
Machinability	After quenching and tempering at NV 241-278 and blower SB=850-980 MPa Kn TV.SPL.=0,63 Kn b.St.=0.55