Black coating metal material Precise manufacturing without any burr Smooth edge and strict tolerance control Low cost

Black metal stamping part which is formed through four proceses under press  from punching machine , and a film of black coating on the surface to prevent rustness ; vertical symmetrical flutes provide enough space for object to setting , also  a bolt can be screwed from both holes to fasten the objects .  Metal stamping part with black coating ofen needs a dry surroundings for the more long service , so it is suggested to be used in indoor .

Technical Data for the product

Material	Spring steel
Tensial Strength	400σb/MPa
Elongation	δ5%
Specification	30X20X25X2(LxWxHxT)
Elastic Modulus	200E/Gpa
Poisson's ratio	0.3

Chemical Element for the product

C	Mn	Si	S	P
0.22	1.4	0.35	0.05	0.045

Note : Final technical data for goods are subject to requirements from both parties .

Options for the product

Material	Stainless , aluminum and alloy steel
Coating	Paint , zinc , nickel and polish
Color	Various
Tolerance	ISO
Size	Max length is 50mm and thinkness is 4mm
Text	Available
The second process	Lathe

Black metal Stamping part