Yes.
Steel Radial Speed Rating
Presumably C means circumference and R means radius? If C = 2*pi*R Then R = C divided by 2*pi
That is the formula for the area of a circle; r refers to the radius, and pi is approximately 3.14. r squared means that you multiply r x r.
(3) x (r) which means 3 times its radius.
the equivalent for c45 is en-8 and en-19 is c55 Need the Chemical composition and mechanical properties of C45 and EN-8 also to C55 and EN-19
I need to know the hardness for c - 45 steel.
Yes.
Yes.
John R. Steel was born in 1948.
please give me chemical composition of c45 Chemical composition in weight %: 0.42-0.50% C, <0.40% Si, 0.50-0.80% Mn, <0.045% S, <0.045% P, 0.40% Ni, <0.40% Cr, <0.10% Mo, Cr+Mo+Ni<=063. Note: Carbon steel. Austenitized at 850 oC. Source: Website Saarstahl AG, Germany, 2007.
below 380 HV10
Made of steel
Craig R. MacPhee has written: 'Restrictions on international trade in steel' -- subject(s): Steel industry and trade, Tariff on steel
twisted oblation resistant steel
Steel-bound means "bounded by steel."
R. A. Lula has written: 'Stainless steel' -- subject(s): Stainless Steel 'Manganese stainlesss steels'