TABLE A.4 Composition of Metallic and Other Materials No. Material Manufacturer Composition or Description Metals 17 Aluminum 19 Aloyco-20 Alloy Steel Products Co. Fe; 19–21 Cr; 28–30 Ni; 4.0–4.5 Cu; 2.5–3.0 Mo; 1.5 max. Si; 0.65–0.85 Mn; 0.07 max. C 19a 720 Alloy General Plate 20 Mn; 20 Ni; Cu 54–60 Brass Various commercial grades ranging 60–65 Cu; 35–40 Zn; 0.5–3.0 Pb 63 Brass, red 85 Cu; 15 Zn 66 Bronze, comm. 90 Cu; 10 Zn 73 Bronze, phosphor, 5% A 94.8–95.5 Cu; 4.3–5 Sn; P 74 Bronze, phosphor, 8% C Cu; 7–9 Sn; 0.03–0.25 P 75 Bronze, phosphor 10% D 89.5–90 Cu; 10–10.5 Sn; P 76 Bronze, phosphor, spec. free cutting 88 Cu; 4 Zn; 4 Sn; 4 Pb 81 CA-FA20 Cooper Alloy Fe; 19–21 Cr; 28–30 Ni; 3.5 Mo; 4–4.5 Cu; 0.07 max. C 82 CA-MM Cooper Alloy 67 Ni; 30 Cu; 1.4 Fe; 0.1 Si; 0.15 C 86 Cast iron Ordinary unalloyed cast iron 88 Chlorimet 2 Duriron Co. 63 Ni; 32 Mo; 3 max. Fe; 0.15 max. C; 1 Si; 1 Mn 89 Chlorimet 3 Duriron Co. 60 Ni; 18 Mo; 18 Cr; 2 Fe; 0.07 max. C; 1 Si; 1 Mn 111 Copper 99.9+ Cu

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