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30CRNIMO8, 1.6580, 30NCD8 Round bar

Min. Order / EXW Reference Price
1000KgNegotiable Origin: China Buy Samples
Product info
  • Smelting: Electric furnace
  • Delivery condition: Hot Rolled
  • Heat treatment: Annealed
  • Surface: Black
  • Standard: ASTM,AISI,DIN,EN,AFNOR NF,B.S.
  • Lead Time: 15 days
  • Shape: Round
  • Payments: T/T
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Product details

30CrNiMo8, 1.6580 


Grade :30CrNiMo8
Number:1.6580
Classification:Alloy special steel
Standard:

EN 10083-3: 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels   

EN 10269: 1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

EN 10250-3: 2000 Open steel die forgings for general engineering purposes. Alloy special steels

EN 10297-1: 2003 Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes. Technical delivery conditions


Chemical composition % of steel 30CrNiMo8 (1.6580): EN 10083-3-2006
CSiMnNiPSCrMo
0.26 - 0.34max 0.40.5 - 0.81.8 - 2.2max 0.025max 0.0351.8 - 2.20.3 - 0.5


Equivalent grades of steel 30CrNiMo8 (1.6580)
EU
EN
Germany
DIN,WNr
Japan
JIS
France
AFNOR
England
BS
China
GB
Russia
GOST
Inter
ISO
30CrNiMo830CrNiMo8SNCM43130CND8823M3030Cr2Ni2Mo3KH3M3F31CrNiMo8


Specification and Application 

Alloyed structural steel with medium hardenability designed for heavy duty components, characterized by high elasticity and strength properties reaching over 1560 N/mm2 at small diameters. When softened, the hardness reaches max. 248 HRB. It is also characterized by its resistance to variable loads and impacts. 

The material is not suitable for welding and ultimately requires additional preheating. Grade 30CrNiMo8 is used for production of heavily loaded parts, shafts and drive axes, steering shafts, crankshafts of engines, screws and elements exposed to temperatures in the power industry. 


Mechanical properties of 30CrNiMo8, 1.6580 

Dimensions <16mm 

  • Tensile strength, Rm 1250 - 1450 N/mm2 

  • Yield strength, Re: >1050 N/mm2 

  • Elongation, A: >9% Necking, 

  • Z: >40% 


Dimensions 16-40mm 

  • Tensile strength, Rm 1250 - 1450 N/mm2 

  • Yield strength, Re: >1050 N/mm2 

  • Elongation, A: >9% Necking, 

  • Z: >40% 




  • Tensile strength, Rm 1100 - 1300 N/mm2 

  • Yield strength, Re: >900 N/mm2 

  • Elongation, A: >10% Necking, 

  • Z: >45% 

  • Impact strength, KV: >35 J 


Dimensions 100-160mm 

  • Tensile strength, Rm 1000 - 1200 N/mm2 

  • Yield strength, Re: >800 N/mm2 

  • Elongation, A: >11% Necking, 

  • Z: >50% 

  • Impact strength, KV: >45J 


Dimensions 160-330mm: 

  • Tensile strength, Rm >850 N/mm2 

  • Yield strength, Re: >630 N/mm2 

  • Elongation, A: >12% 

  • Impact strength, KV: >45 J 


Dimensions >330mm 

  • Tensile strength, Rm >800 N/mm2 

  • Yield strength, Re: >590 N/mm2 

  • Elongation, A: >12% 

  • Impact strength, KV: >40 J 


Heat treatment of 30CrNiMo8, 1.6580 steel 

Softening annealing at a temperature of 640 - 680℃ Normalizing annealing at a temperature of 840 - 860℃ Hardening with cooling in oil at 815 - 845℃ Tempering with cooling in air at 550 - 650℃

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