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Steel 16Х3МФЛ

Designation

Name The value
Designation GOST Cyrillic 16Х3МФЛ
Designation GOST Latin 16X3MFL
Transliteration 16H3MFL
The chemical elements 16Cr3MoV

Description

16Х3МФЛ steel is used: for the manufacture of castings of parts of stationary steam turbines operating at temperatures up to +350 °C and pressures up to 0.4 MPa.

Standards

Name Code Standards
Castings with special properties (cast iron and steel) В83 OST 108.961.02-79

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Mo
OST 108.961.02-79 0.15-0.2 ≤0.025 ≤0.025 0.6-0.9 2.5-3 0.2-0.4 ≤0.3 The rest ≤0.3 0.15-0.3 0.45-0.65
Fe is the basis.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Casting parts stationary steam turbines. Homogenization (normalization) at 1000-1030 °C + normalization at 970-1000 °C + vacation at 700-720 °C, air cooling
150х170 430-550 ≥600 ≥14 ≥35 ≥392 160-220
100х150 430-550 ≥600 ≥14 ≥35 ≥392 160-220
60х150 430-550 ≥600 ≥14 ≥35 ≥392 160-220

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

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