Grade SFNCM 930R
Old Grade
Corresponding Standard JIS G 3222-1988
Nickel chromium molybdenum steel forgings for general use
Classification Alloy Steel
SFNCM 930R Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - 0.15 0.35 - - 0.4 0.4 0.15
Maximum Value 0.5 0.35 1 0.03 0.03 3.5 3.5 0.7
① Cu as an impure content. shall not exceed 0.03 % .
② The chemical composition can be determined through negotiation between the buyer and the manufacturer within the range shown in the table.
SFNCM 930R Mechanical Properties
thickness
t
mm
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
t≤100 930~1080 ≥755 ≥13 ≥34 HB:≥269
HS:≥40
Impact value tangential ≥54 J/cm2
100<t≤200 930~1080 ≥735 ≥12 ≥33 HB:≥269
HS:≥40
Impact value tangential ≥54 J/cm2
200<t≤300 930~1080 ≥715 ≥11 ≥32 HB:≥269
HS:≥40
Impact value tangential ≥49 J/cm2
300<t≤400 930~1080 ≥705 ≥10 ≥31 HB:≥269
HS:≥40
Impact value tangential ≥44 J/cm2

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!