Influence of Microscopic Effects on the Static Tensile Strength of Gray Cast Iron HT200 Specimens

Table 1

Test values of extreme strength of gray cast iron HT200 specimens.

Specimen number	Diameter Φ(mm)	Section area A(mm)^2	Extreme force Fb(kN)	Extreme strength σb(MPa)
No. 1	7.68	46.3248	9.82	211.98
No. 2	7.88	48.7689	12.34	253.06
No. 3	8.04	50.7695	10.35	203.93
No. 4	8.2	52.8103	12.79	242.19
No. 5	8.14	52.0403	10.86	208.61
No. 6	8.5	56.7452	13.41	236.27
Mean value	8.07	51.2432	11.59	226.01