Hmmmmm... Ah... Google comes through again....:
All I did to get this info was google it a few different ways.....
The full description of the new spec is:
China GB 5676 ZG310-570(ZG45) F cast steel, carbon
(courtesy of Maryland Metrics)
ZG310-570
Carbon: 0.50 Manganese: 0.90 Silicon: 0.60
Yield strength: 310 MPa
Ultimate Tensile Strength: 570 MPa
% of some measured value (possibly elongation): 15%
% of some measured value (I have no clue): 21%
A
K in KJ/m^2: 300 (possibly impact values?)
ZG45
Carbon: 0.42~0.52 Manganese: 0.50~0.80 Silicon: 0.20~0.45
Yield: 320MPa
UTS: 580 MPa
Again here's the three values that I dont know what their Variables translate to:
12%
20%
300 KJ/m^2
Here is the webpage I got this info from:
http://166.111.92.10/data/jpkc71/wlkc4/fubiao/fb3-16.htm&sa=X&oi=translate&resnum=9&ct=result&prev=/search%3Fq%3DZG310-570%26start%3D20%26hl%3Den%26lr%3D%26sa%3DN] Google Automatic Translation[/url]
Nick
I love materials science!