# A Simple Estimation Method of Weibull Modulus and Verification with Strength Data
## 4 Material Strength Data
### Metals and Alloys
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Metals and Alloys** & **<\textgreater{}** & **S** & **<\textgreater{}/SD** & **m\({}_{\text{obs}}\)** & **m\({}_{\text{ext}}\)** & **N** & **m\({}_{\text{obs}}\)/m\({}_{\text{ext}}\)** & **Note** & **D/V** & **Ref** \\ \hline Al 6061 & 396.2 & 3.49 & 113.52 & 124.00 & 124.88 & 30 & 0.993 & ASTM E28 study & D & [24] \\ Al 7075 & 611.2 & 7.3 & 83.50 & 91.40 & 91.85 & 30 & 0.995 & ASTM E28 study & D & [24] \\
1018 steel & 497.0 & 7.5 & 66.62 & 73.80 & 73.28 & 29 & 1.007 & ASTM E28 study & D & [24] \\
4142 steel & 1004.0 & 14.2 & 70.70 & 78.10 & 77.77 & 30 & 1.004 & ASTM E28 study & D & [24] \\ Nimonic® 75 & 750.8 & 6.4 & 117.86 & 125.30 & 129.65 & 18 & 0.966 & European study & D & [25] \\ Incon® 625 & 886.3 & 16.5 & 53.72 & 54.70 & 59.09 & 21 & 0.926 & production plates & D & [45] \\ Copper-oxygen free & 226.2 & 21.1 & 10.73 & 11.96 & 11.80 & 33 & 1.013 & annealed & D & [48] \\ Copper-oxygen free & 427.0 & 29.8 & 14.34 & 15.88 & 15.78 & 22 & 1.006 & cold worked 90\% & D & [48] \\ Steel coarse carbides & 1599.0 & 77.0 & 27.77 & 28.24 & 10 & 0.957 & Cleavage fracture & D & [46] \\ WCF62 steel at \(-196\) °C & 1257.0 & 118.4 & 10.62 & 13.40 & 11.68 & 13 & 1.147 & Cleavage fracture & D & [46] \\ C-Mn steel at \(-100\) °C & 1787.0 & 116.0 & 15.41 & 18.54 & 16.95 & 20 & 1.094 & Cleavage fracture & D & [46] \\ C-Mn steel Quenched & 58.9 & 6.8 & 6.9 & 10.68 & 9.56 & 16 & 1.118 & K\({}_{\text{k}}\) at \(-100\) °C & D & [46] \\ Stainless steel 340 & 507.4 & 9.6 & 53.08 & 56.03 & 58.38 & 12 & 0.960 & Annealed & V & [49] \\ Stainless steel 316L & 636.9 & 10.0 & 63.62 & 66.62 & 69.98 & 20 & 0.952 & Annealed & V & [49] \\ Stainless steel 301 HT & 1649.0 & 23.1 & 71.29 & 77.79 & 78.42 & 26 & 0.915 & Cold rolled & V & [49] \\
0.4C-1.5 Cr-1.5 Ni steel & 644.0 & 45.0 & 14.31 & 17.56 & 15.74 & 25 & 1.115 & Sintered steel & V & [50] \\
0.4C-1.5 Cr-1.5 Ni steel & 622.0 & 25.0 & 24.88 & 26.04 & 27.37 & 24 & 0.951 & Sintered steel & V & [50] \\
0.4C-1.5 Cr-1.5 Ni steel & 508.0 & 36.0 & 14.11 & 17.41 & 15.52 & 24 & 1.122 & Sintered steel & V & [50] \\
0.4C-1.5 Cr-1.5 Ni steel & 728.0 & 50.0 & 14.56 & 16.15 & 16.02 & 25 & 1.008 & Sintered steel & V & [50] \\
0.4C-1.5 Cr-1.5 Ni steel & 710.0 & 35.0 & 20.29 & 23.01 & 22.31 & 25 & 1.031 & Sintered steel & V & [50] \\
0.4C-1.5 Cr-1.5 Ni steel & 669.0 & 43.0 & 15.56 & 19.50 & 17.11 & 24 & 1.139 & Sintered steel & V & [50] \\
18N Margang steel & 1147.3 & 11.1 & 103.17 & 99.20 & 113.49 & 9 & 0.874 & laser sintered & D & [51] \\ ZM61 M alloy Extruded & 210.3 & 1.5 & 143.06 & 166.30 & 157.37 & 20 & 1.057 & Yield strength & V & [52] \\ ZM61 M alloy Extruded & 2857.5 & 3.6 & 80.25 & 92.60 & 88.28 & 20 & 1.049 & Fracture strength & V & [52] \\ ZM61 M alloy Extruded & 303.8 & 1.4 & 220.14 & 216.40 & 22.16 & 20 & 0.894 & Tensile strength & V & [52] \\ ZM61 Mg alloy Aged & 312.3 & 3.9 & 79.67 & 89.00 & 87.64 & 20 & 1.016 & Yield strength & V & [52] \\ ZM61 Mg alloy Aged & 312.8 & 9.2 & 33.89 & 34.80 & 37.28 & 20 & 0.934 & Fracture strength & V & [52] \\ ZM61 Mg alloy Aged & 349.6 & 3.2 & 110.28 & 126.20 & 121.31 & 20 & 1.040 & Tensile strength & V & [52] \\ AE44 Mg alloy & 243.7 & 7.7 & 31.73 & 34.90 & 34.90 & 15 & 1.000 & Tested at 295 K & D & [33] \\ AE44 Mg alloy & 159.6 & 7.0 & 22.74 & 25.00 & 25.01 & 5 & 1.000 & Tested at 394 K & D & [33] \\ Al-Si casting alloy & 195.4 & 3.8 & 51.69 & 61.30 & 56.86 & 52 & 1.078 & Sand mould mould - modified & D & [54] \\ Al-Si casting alloy & 188.3 & 3.2 & 59.22 & 68.03 & 65.15 & 50 & 1.044 & Metal mould & V & [54] \\ Al-Si casting alloy & 215.9 & 3.0 & 70.93 & 82.58 & 78.03 & 50 & 1.058 & Metal mould - modified & V & [54] \\ Al-Si casting alloy & 192.5 & 3.9 & 50.00 & 67.80 & 55.00 & 5 & 1.233 & Sand mould, heat treat & V & [54] \\ Al-Si casting alloy & 207.6 & 4.2 & 50.02 & 70.80 & 55.03 & 50 & 1.287 & Metal mould, heat treat & V & [54] \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Listing of data for metals and alloys.