Study on the Microstructure of Vanadium-Modified Tungsten High-Speed Steel-Coded SAE-AISI T1 Steel

Table 3

Chemical composition of MC carbide for T1 high-speed tool steel and its different variants (as solidified).

Steel designation	State	Chemical composition, wt. %
		C	Cr	V	W	Mo	Si	Fe
Standard T1 high-speed tool steel
T1 high speed	Calculated	14.3	3.74	59.28	19.98	2.62	5.16E − 09	0.08
	Measured	16	3.60	63.29	17.09	3.20	—	0.02
Vanadium-modified T1 high-speed tool steel
2V-13W	Calculated	14.50	3.53	61.61	17.32	2.97	3.80E − 09	0.07
	Measured	16.10	2.86	64.66	15.48	3.30	—	0.001
3V-8W	Calculated	14.80	3.18	64.9	13.69	3.37	2.58E − 09	0.06
	Measured	16.10	2.42	67.02	13.15	3.51	—	0.001
4V-3W	Calculated	15.06	1.96	70.75	8.39	3.81	1.39E − 09	0.04
	Measured	16.00	2.15	73.12	9.81	3.72	—	0.001
Vanadium with extra carbon-modified T1 high-speed tool steel
2V-13 W-HC	Calculated	13.9	3.83	55.04	24.01	3.12	6.35E − 09	0.1
	Measured	15.8	3.68	59.24	21.30	2.97	—	0.02
3V-8W-HC	Calculated	13.67	3.85	52.81	26.37	3.18	6.73E − 09	0.11
	Measured	14.70	4.16	50.83	28.17	3.34	—	0.19
4V-3W-HC	Calculated	14.15	4.37	53.06	22.61	5.66	1.04E − 08	0.15
	Measured	15.00	4.82	62.76	16.02	5.40	—	0.03