C28Mn

We are professional C28Mn Forged forging Steel Round Bars Rods Square rectangular rectangle Flat Hex Bars,C28Mn Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tube tubings barrels Casing Cases Shells cylinders hubs housings,C28Mn Seamless Rolled Steel Rings,C28Mn Forged Forging Steel rings,C28Mn Forged Forging Steel Blocks Discs Disks Plates,C28Mn Forged Forging Steel Gear Shafts Pinion Shafts Spindles,and other C28Mn forged forging parts Forged Products forged forging pieces forged forging steel components materials  from china

Chemical composition %   of   steel   C28Mn 

Cr + Mo + Ni = max 0.63

C	Si	Mn	Ni	P	S	Cr	Mo
0.25 - 0.32	max   0.4	1.3 - 1.65	max   0.4	max   0.03	max   0.035	max   0.4	max   0.1

Mechanical properties of   steel   C28Mn 

Nominal thickness (mm):	to 16	16 - 100	100 - 250	250 - 500	500 - 1000
Rm - Tensile strength (MPa) (+N)	630	600	570	540	540

Nominal thickness(mm):	to 16	16 - 100	100 - 250	250 - 500	500 - 1000
Re - Upper yield strength or  Rp0.2 - 0.2% proof strength (MPa) (+N)	345	310	290	270	260

KV - Impact energy (J) (+QT)	+20° 40

Nominal thickness (mm):	to 16	16 - 100	100 - 250
A - Min. elongation Lo = 5,65 √ So (%) (+N)	17	18	18

Brinell hardness   (HBW):   (+S)	255
Brinell hardness   (HBW):   (+A)	223