Q420D lamina ferro

GB/T1591 Q420 quinque gradus chalybi distinctos continet sicut Q420A,Q420B,Q420C,Q420D et Q420E. Ferri structuralis Q420D fiet impacting test ad low temperaturas minus 20 gradus centigradae Q420D in gravi crassitudine.

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Compositio chemica Mechanica Property

Compositio chemica

Elementa chemica principalis compositio Q420D
C	Si	Mn	P	S	V	Nb	Ti	Al (min.)	Cr	Ni
0.20	0.55	1.00-1.70	0.030	0.030	0.02-0.20	0.015-0.060	0.02-0.20	0.015	0.40	0.70

Mechanica Property

Crassitudo (mm)
Q420D	≤ 16	> 16 ≤ 35	> 35 ≤ 50	>50
Vires cede (≥Mpa)	420	400	380	360
Roboris distrahentes (Mpa)	520-680

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