20KHGSA Alloy structural steel

Steelun Designation of 20KHGSA Alloy structural steel:

Name The value
Designation GOST Cyrillic 20ХГСА
Designation GOST Latin 20XGCA
Transliteration 20HGSA
By chemical elements 20CrMnС

Description Steelun of 20KHGSA Alloy structural steel:

20KHGSA steel is used: for the manufacture of hot rolled plates; chassis screws, axles, shafts, worms and other parts operating in conditions of wear and alternating loads at temperatures up to +200 °C; solid-rolled rings for different purposes.

Note

Structural steel high-quality chromonemata.

Steelun Standards of 20KHGSA Alloy structural steel:

Name Code Standards
Sheets and strips В23 GOST 103-2006
Bars and shapes В22 GOST 1133-71, GOST 8319.0-75, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Bars and shapes В32 GOST 4543-71, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 10702-78, GOST 14955-77, OST 1 92049-76, TU 14-1-2118-77, TU 14-11-245-88, TU 14-1-1271-75, TU 14-1-5228-93, TU 14-136-367-2008
Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
Sheets and strips В33 TU 14-1-1409-75, TU 14-1-4118-86, TU 14-1-4118-2004

Chemical composition Steelun of 20KHGSA Alloy structural steel:

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
TU 14-1-4118-2004 0.17-0.23 ≤0.025 ≤0.025 0.8-1.1 0.8-1.1 0.9-1.2 ≤0.3 Rest ≤0.3 ≤0.05 ≤0.03 ≤0.15 ≤0.2
Fe is the basis.
GOST 4543-71 regulates the content of high-quality steel: P≤0,025%; S≤0.015%; Сu≤0.25%.

Steelun Mechanical properties of 20KHGSA Alloy structural steel:

Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % d4 d10 y, % KCU, kJ/m2 HB, MPa
Hot-rolled steel and hot rolled with special surface finish
≤197
Steel calibrated and calibrated with special surface finish
≤207
Quenching in oil at 880 °C + vacation at 500 °C, cooling in water or oil
≤15 ≥640 ≥780 ≥12 ≥45 ≥677
Samples. Quenching in oil from 900 °C to +leave (exposure 30 min), air cooling
200 ≥1520 ≥9 ≥49 ≥577 ≤420
Flats on the other 14-1-4118-2004
490-690 ≥15 ≥18
Samples. Quenching in oil from 900 °C to +leave (exposure 30 min), air cooling
300 ≥1470 ≥9 ≥52 ≥577 ≤400
400 ≥1340 ≥8 ≥50 ≥481 ≤360
500 ≥1080 ≥10 ≥50 ≥765 ≤325
600 ≥880 ≥17 ≥52 ≥961 ≤255

Description mechanical marks steelun of 20KHGSA Alloy structural steel:

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
d4 Elongation after rupture
d10 Elongation after rupture
y The relative narrowing
KCU Toughness
HB Brinell hardness number

Steelun Physical characteristics of 20KHGSA Alloy structural steel:

Temperature r, kg/m3
0 7760

A description of the physical symbols steelun of 20KHGSA Alloy structural steel:

Name Description
Е The normal elasticity modulus
G Modulus of elasticity shear torsion
r Density
l Coefficient of thermal conductivity
R UD. the resistivity
a The coefficient of linear expansion

Steelun Technological properties of 20KHGSA Alloy structural steel:

Name The value
Weldability without limitation of RDS, CBS, ARDS, ADB submerged arc and gas protection electroslag welding – requires a subsequent heat treatment.
The tendency to temper brittleness inclined
The temperature of forging Start – 1200 °C, the end – of 800 °C.
Flock-sensitive sensitivity not sensitive
Machinability when NV 140-207 Kn TV.SPL.=0.7 Kn b.St.=0.60

You might also like

Steel Grades

10 High quality structural carbon steel

Steelun Designation of 10 High quality structural carbon steel: Name The value Designation GOST Cyrillic 10 Designation GOST Latin 10 Transliteration 10 By chemical elements 10 Description Steelun of 10 High quality structural

Steel Standards

20Х2МФА Alloy structural steel

Steelun Designation of 20Х2МФА Alloy structural steel: Name The value Designation GOST Cyrillic 20Х2МФА Designation GOST Latin 20X2MFA Transliteration 20H2MFA By chemical elements 20Cr2MoV Description Steelun of 20Х2МФА Alloy structural steel: 20Х2МФА steel

Steel Countries

St1ps Structural carbon steel of ordinary quality

Steelun Designation of St1ps Structural carbon steel of ordinary quality: Name The value Designation GOST Cyrillic Ст1пс Designation GOST Latin Ct1pc Transliteration St1ps By chemical elements 1 Description Steelun of St1ps Structural carbon