Txias Phaj Ua Haujlwm Hardening

Feem ntau, cov khoom siv hluav taws xob ntawm cov phaj kub thiab cov phaj txias yog suav tias yog qhov tsis sib xws hauv engineering, txawm hais tias lub phaj txias muaj qee qhov kev ua haujlwm nyuaj thaum lub caij txias dov.

Qib Qib	C	Mn	P	S	Al	Si	Cu	Ni	Cr	Mo	V	Cb	Ti	N
30,33,36,40	0.25	0.9	0.035	0.04			0.2	0.2	0.15	0.06	0.008	0.008	0.025
36T2,45-80	0.25	1.35	0.035	0.04			0.2	0.2	0.15	0.06	0.008	0.008	0.025
45T2	.02- 0.08	.30- 1.0	.03- .07	0.025	.02- .08	0.6	0.2	0.2	0.15	0.06	0.008	0.008	0.025	.01- .03

STEEL Qib	Tensile zog	Yield zog max	Elongation min.	r	n
<>	0.70-<>	1.0-<>	>=1.6	min	min
SC2	270-330	180	38	39	40	41	1.9	0.20

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