Global · Enterprise standard

Olin C51180

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Chemical composition

Element	min	max	Similar	Remarks
Cu			Bal	Bal
Fe	0.05	0.2
Ni	0.05	0.2
P	0.01	0.35
Pb		0.05
Sn	3.5	4.9
Zn		0.3

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
1/2		475–580	≥22 Lo = 51 mm;
3/4 Hard		550–635	≥18 Lo = 51 mm;
Extra hard		760–840	≥3 Lo = 51 mm;
弹簧		725–820	≥5 Lo = 51 mm;
硬		585–690	≥12 Lo = 51 mm;
超硬		670–770	≥8 Lo = 51 mm;