Detail Information:

Chemical Composition of 30CrNiMo8:

C	Si	Mn	Ni	P	S	Cr	Mo
0.26 - 0.34	max 0.4	0.5 - 0.8	1.8 - 2.2	max 0.025	max 0.035	1.8 - 2.2	0.3 - 0.5

Equivalent Standard:

Germany DIN,WNr	France AFNOR	England BS	China GB	Russia GOST	International ISO
30CrNiMo8	30CND8	823M30	30Cr2Ni2Mo	3KH3M3F	31CrNiMo8

Delivery Condition: Hot forged +Rough machined (black surface after Q/T)+ Turned(optional) Heat Treatment Details:

Forging
Heat to 1150 oC and hold until temperature is uniform throughout the section. Soaking time at forging temperature should be as short as possible to avoid heavy scaling and excessive grain growth. This will vary depending on furnace conditions but 15 minutes per 25 mm of section may be used as a guide.Do not forge below 850 oC.
Following completion of forging operation, work piece should be cooled as slowly as possible in sand or dry lime etc.

Machining
8620 in the as rolled as supplied condition, has very good machinability and all operations such as turning, drilling, milling and tapping etc. can be carried out satisfactorily as per machine manufacturers recommendations for suitable tool type - feeds and speeds.
Welding
8620 is readily weldable in the as rolled as supplied condition. Following welding, the work piece immediately upon cooling to hand warm should be stress relieved at 630 oC - 650 oC if possible.N.B. Welding in the carburized and heat treated condition is not recommended.

Application:

30CrNiMo8 widely used in High Pressure Chemical Containers with High Pressure and Frequent Fluctuation,pressure piping producing and important structural producing,etc.Packing: Kraft Paper,in bundle ,wood pallet ,nude packing,wooden case,carton or other customized seaworthy packing .Company Brochure: Production Facilities: Quality Control Equipments: End Products: Packing& Delivery:Certificates: