1.6511 Alloy Steel Rod Impermeability 1.6511 Alloy Steel Rod Solid Bar

(1)
1.6511 Alloy Steel Rod Refers To The Corresponding Steel Number
China GB steel number 40CrNiMoA, German DIN steel number 36CrNiMo4, German DIN
material number 1.6511, French NF standard 40NCD3, Japanese JIS standard
SNCM439, British BS standard 816M40, American AISI/ASTM4340, American UNS
standard G43400.
(2)
1.6511 Alloy Steel Rod Chemical Composition
C:0.37-0.44 Si:0.17-0.37 S：≤0.035 P:≤0.035
Mn:0.50-0.80 Cr:0.60-0.90 Mo:0.15-0.25 N:1.25-1.65
(3)
1.6511 Alloy Steel Rod Surface Treatment
Plate: Origin Black, Orign cold rolled bright, Machined, Grinded
Bar:Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded
(4)
Charateristics
4340 steel offers toughness and high strength inthe heat treated condition,
with in roun , d bar 4340 is available
fully certified and suitable for applicat , ions 
requiring a quality tensile alloy steel.AISI 4340 is
commonly supplied quenched and tempered with a hardness of between 24 to
29HRc
(5)
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