Properties of raw material sheet metal

Raw material properties have a major effect on the stamping process and die design and are expressed as a percentage of the clearence and calculation force press machine.

Properties of Raw Materials

Material	Shear Strength (kgf/mm2)		Tensile Strength (kgf/mm2)
	Soft	Hard	Soft	Hard
Lead	2~3		2.5~4
Tin	3~4		4~5
Aluminum	7~11	13~18	8~12	17~22
Zinc	12	20	15	25
Copper	12	20	15	25
Brass	22~30	35~40	28~35	40~60
Bronze	32~40	40~60	40~50	50~75
German Silver	28~36	45~56	35~45	55~70
Steel 0.1%C	25	32	32	40
Steel 0.2%C	32	40	40	50
Steel 0.3%C	36	48	45	60
Steel 0.4%C	45	56	56	72
Steel 0.6%C	56	72	72	90
Steel 0.8%C	72	90	90	100
Steel 1.0%C	80	105	100	130
Stainless Steel	52	56	65~70
Nickel	25		44~50	57~63