Standards Grade Size tensile
strength
Charpy
Impact
HB
process LF
  surface condition Black condition   heat treatment Normalizing  
VD Grindering Annealing
ESR Rough Turned Soft Cooling
   
Standards Grade Size
Process Surface condition Heat treatment Mechanical property HB Remarks
LF VD ESR SB SG RT TN TA SC b
Mpa
s
Mpa
5
%

%
Akv
J
max min
 GB/T3203-1982  G20CrNiMo 80-460 - - -   120     45        Size of sample:15,M is after TQT 
 GB/T3203-1982  G20CrNi2Mo 80-460 - - -   100     13  45        Size of sample:25,M is after TQT 
 GB/T3203-1982  G20Cr2Ni4 80-460 - - -   120     10  45        Size of sample:15,M is after TQT 
 GB/T3077-1999  20CrMnTi 80-520 - - - - - -   1080  850  10  45  55  217     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  30CrMnTi 80-520 - - - - - -   1470     40  47  229     Sampling,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  20CrNiMo 80-520 - - - - 980  785  40  47  197     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  20CrMo 80-520 - - - - - -   885  685  12  50  78  197     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  42CrMo 80-520 - - - - - -   1080  930  12  45  63  217     Size of sample:25mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  20Cr 80-520 - - - - - -   835  540  10  40  47  179     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  40Cr 80-520 - - - - - -   980  785  45  47  207     Size of sample:25mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  35CrMoV 80-520 - - - - - 1080  930  10  50  71  241     Size of sample:25mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  12CrMo 80-520 - - - - - -   410  265  24  60  110  179     Size of sample:30mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  15CrMo 80-520 - - - - - -   440  295  22  60  94  179     Size of sample:30mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB1591-88  20CrV 80-520 - - - - - 835  590  12  45  55  197     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  40CrV 80-520 - - - - - 885  735  10  50  71  241     Size of sample:25mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  20MnV 80-520 - - - - - 785  590  10  40  55  187     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  20CrMnMo 80-520 - - - - - - 1180  885  10  45  55  217     Size of sample:15mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  40CrMnMo 80-520 - - - - - - 980  785  10  45  63  217     Size of sample:25mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  20CrMnSi 80-520 - - - - - 785  635  12  45  55  207     Size of sample:25mm,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
 GB/T3077-1999  35CrMnSiA 80-520 - - - - - 1620  1280  40  31  229     Sampling,Mechanical property is after quenching and tempering,HB is after annealing/tempering 
1 / 4page
     Electroslag remelting-ESR,Black Condition-SB,Grindering-SG,Rough Turned-RT,Normalizing-TN,Annealing-TA,Soft Cooling-SC,
     tensile strength-b Mpa,yield strength-sMpa,elongation percentage-5%,reduction of area-%,Charpy Impact-AkvJ,Brinell hardness-HB
Company Name:Qilu Special Steel Co. Ltd., Wuhan Branch
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Tel:+86-027-82701067 Fax:+86-027-82701060
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