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Steel 21850

Designation

Name The value
Designation GOST Cyrillic 21850
Designation GOST Latin 21850
Transliteration 21850
The chemical elements 21850

Description

21850 steel is used: for magnetic circuits of electrical machines and devices.

Note

Steel grooved, undoped silicon with specified ageing coefficient, coercive force in open circuit ≤ 50 A/m.

Standards

Name Code Standards
Sectional and shaped rolling В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and stripes В33 GOST 4405-75
Sectional and shaped rolling В32 GOST 7417-75, GOST 11036-75, TU 14-11-245-88

Chemical composition

Standard C S P Mn Si Fe Cu
GOST 11036-75 ≤0.035 ≤0.03 ≤0.02 ≤0.3 ≤0.3 The rest ≤0.3
Fe is the basis.

Mechanical characteristics

σB, MPa d5, %
Bars calibrated on delivery
≥350 ≥4

Description mechanical marks

Name Description
σB Limit short-term strength
d5 Elongation after rupture

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