Evaluation of the Methods for Estimating the Fully Reversed Unnotched Fatigue Limits of Steels

Table 1

Monotonic deformation properties and fatigue limit of the selected steels from the AISI Bar Steel Fatigue Database [6].

Materials	E (GPa)	σy (MPa)	σu (MPa)	σf (MPa)	RA (%)	εf	HB	σL (MPa)
1541	197	471.2	783.2	1207	55.1	0.8	180	260.0
1541	196	461	905.5	1247	41.7	0.54	195	311.7
1050M	211	449.6	821	1128	49.6	0.7	238	254.5
1050M	202	460	828.5	1065	34.1	0.416	220	360.2
1050M	220	2100	2360	2115	14.7	0.16	536	796.1
1090	219	728.8	1090	966	14	0.15	259	307.1
1090M	217	1065	1388	1427	25	0.29	357	404.1
1090	213	677.6	1147	1151	21.7	0.245	309	346.8
1090M	212	751.3	1252.3	1169	13.6	0.146	279	338.3
1090M	214	759.5	1124	840	37.6	0.47	272	376.0
1141AL	216	457.4	770.6	1207	57	0.85	223	286.0
1141AL	227	814.2	924.8	1405	59	0.88	277	432.0
1141Nb	220	417.8	695.2	1000	53	0.76	199	276.6
1141Nb	217	602.1	801.8	1228	54	0.77	241	341.8
1141V	214	449.9	725.2	1087	49	0.68	217	287.0
1141V	215	609.7	796.8	1243	58	0.88	252	332.2
1141V	220	493.5	789.4	1117	47	0.64	229	295.8
1038	201	330.7	582.2	898	54	0.77	163	222.6
1038	219	359.4	651.6	1051	53	0.76	185	240.8
1038	218	559.8	743	1292	69	1.16	245	317.6
10V45	213	465.2	764.6	1131	48	0.7	212	270.4
10V45	216	605.6	908.6	1197	42	0.5	269	374.3
1020	207	294.9	502.2	849	63.5	1.01	135	194.3
10B21	212	1062.3	1104.8	1573	70.5	1.22	322	536.9
1022	200	457.3	604.1	1587	68.7	1.16	195	230.6
1045	209	509.6	746.6	1151	62	1	222	278.5
1151V	206	452.3	760.8	1319	50.6	0.7	205	266.9
15V24	209	645.7	877.6	1363	61.1	0.9	243	379.2
4130AL	213	1284.5	1482.8	2055	44.3	0.6	442	527.6
4140	207	928.9	1042.9	1519	61.3	1	325	437.4
5140	218	956.7	1039.2	1445	52.7	0.8	305	496.8
5150	210	471.8	867.1	1382	55.8	0.8	245	294.5
51B60	200	1830	1970	1968	21.6	0.23	450	771
9254V	206	1870	2050	2118	35.1	0.4	536	710.2
1070	207	520	659	1360	36.2	0.5	280	339.3
C-70	201	765	964	837	16.8	0.197	241	340.2
15B35	219	866.4	939.9	1747	64.5	1.04	286	467.8
4620	208	687.5	997.8	1530	58.2	0.872	289	368.5
4320	202	920	994	1336	63	0.99	188	547.1
4620	211	892	964	1651.9	61.9	0.966	289	453.5
5120	214	780	1008	1287	58	0.87	252	471.8
9310	197	804	902	1418	70.8	1.23	260	464.1
8822	204	918	1131	1362	56	0.88	252	442.1
8620	203	1357	1764	801.4	13.9	0.15	457	805.7
4320	201	1344.5	1705.3	2197.8	55.5	0.811	445	774.5
4140	197	1297	1390	1521.5	48.3	0.66	377	602.5
4140	200	1305	1400.5	1771	48.2	0.657	380	607.5
4140	204	1330	1537	1705.2	42.1	0.546	410	626.3
4140	205	1314	1445.8	1754.5	52.1	0.736	390	697.3
4140	199	1255.1	1355.1	1332.7	38.8	0.492	370	679
4140	201	1341	1474.2	1786.2	52.5	0.745	396	730.4
8620	207	1401.7	1677.2	1851.7	14.2	0.153	439	731.1
41B17M	213	826.9	872.3	1304	68	1.137	277	465.5
86B20	205	989	1034.1	869	63.7	1.013	294	498.6
4140	213	1669.2	1924.3	1859	15.7	0.163	477	587.7
41B17M	216	863.1	904	1245.4	64.7	1.04	277	480.5
4140	206	1290.7	1380.4	1384.5	23.6	0.269	394	554.81
86B20	206	1198	1502	968.2	59.7	0.909	401	494.8
5160H	209	1604.2	1761.2	1843.8	30.2	0.359	456	736.9
9254	206	1841	2020	3644	51	0.71	508	664.6
15V41	193	665.5	1070.7	766.5	32.6	0.395	303	431.9
4140	201	1363	1514	2071	48	0.65	405	552.4
1552	196	420	964	1526	45	0.59	276	387.2
8620	208	1566	1785	2206.4	39	0.49	461	614.6
4140	203	1157.5	1247.3	1311.3	47.5	0.646	409	601.9
4140	207	1167.1	1239.5	1537	47.2	0.64	417	575.2
4140	206	1622.2	1818.3	2016.7	42.6	0.555	477	637.83
4140	208	1261	1332.7	1517.6	44	0.581	375	574.2
8822	212	883.5	945.7	1170.2	67.2	1.115	297	511.2
8822	210	990	1334.7	1542.3	46.9	0.633	301	549.3
8822	194	1135	1215	2690	59.4	0.903	338	608.5
8822	208	1528	1723	3387	50	0.672	449	535.3
8620	212	693.5	991	1411.1	54	0.776	326	380.4
8620	210	795.8	1145.2	1585.7	50.8	0.711	352	430.2
8620	214	989.5	1310.8	1711.2	52	0.736	382	528.2
4320	194	620.5	905	1966	59.2	0.896	261	391.8
4320	194	745	1010	1984	57	0.846	288	466.3
4320	194	867	1238	2336	55.2	0.804	343	676.6
9310	196	666	883	1596	61.4	0.899	255	450
9310	196	850	1085	2155	57.5	0.857	306	531.5
9310	195	990	1201	2172	56.5	0.832	334	533.2
20MnCr5	194	852	1053	1991	56.5	0.832	299	489
20MnCr5	194	1071	1337	2351	52	0.74	366	606.8
1538MV	193	650.3	973.4	1038.7	28.3	0.333	285	439.1
1538MV	194	628	943	1069.8	36.4	0.452	277	382.3