QUENCHED AND TEMPERED STEELS

Quenched and tempered steels are unalloyed and alloyed machine manufacture steels featuring high saturation at a certain tensile strength after quenching and tempering process, which are suitable for hardening in terms of their chemical composition, particularly carbon amount.



CHEMICAL COMPOSITION
Material No Symbol AISI-SAE C Si Mn Pmax Smax Cr Mo Ni V
1.0402 C 22 1020 0,18
0,25
0,15
0,35
0,30
0,60
0,045 0,045        
1.0501 C 35 1035 0,32
0,39
0,15
0,35
0,50
0,80
0,045 0,045        
1.0503 C 45 1045 0,42
0,50
0,15
0,35
0,50
0,80
0,045 0,045        
1.0535 C 55 1050 0,52
0,60
0,15
0,35
0,60
0,90
0,045 0,045        
1.0601 C 60 1060 0,57
0,65
0,15
0,35
0,60
0,90
0,045 0,045        
1.5065 28Mn6 1330 0,25
0,32
0,15
0,40
1,30
1,65
0,035 0,035        
1.7003 38Cr2   0,34
0,41
0,15
0,40
0,50
0,80
0,035 0,035 0,40
0,60
     
1.7033 34Cr4 5132 0,30
0,37
0,15
0,40
0,60
0,90
0,035 0,035 0,90
1,20
     
1.7035 41Cr4 5140 0,38
0,45
0,15
0,40
0,60
0,90
0,035 0,035 0,90
1,20
     
1.7218 25CrMo4 4130 0,22
0,29
0,15
0,40
0,50
0,80
0,035 0,035 0,90
1,20
0,15
0,30
   
1.7220 34CrMo4 4135 0,30
0,37
0,15
0,40
0,50
0,80
0,035 0,035 0,90
1,20
0,15
0,30
   
1.7225 42CrMo4 4140 0,38
0,45
0,15
0,40
0,50
0,80
0,035 0,035 0,90
1,20
0,15
0,30
   
1.7228 50CrMo4 4150 0,46
0,51
0,15
0,40
0,50
0,80
0,035 0,035 0,90
1,20
0,15
0,30
   
1.7361 32CrMo12 4   0,28
0,35
0,15
0,40
0,40
0,70
0,035 0,035 2,80
3,30
0,30
0,50
≤ 0,30  
1.6511 36CrNiMo4 9840 0,30
0,38
0,15
0,40
0,40
0,70
0,035 0,035 0,90
1,20
0,15
0,30
0,90
1,20
 
1.6582 34CrNiMo6 4340 0,30
0,38
0,15
0,40
0,40
0,70
0,035 0,035 1,40
1,70
0,15
0,30
1,40
1,70
 
1.6580 30CrNiMo8   0,26
0,33
0,15
0,40
0,30
0,60
0,035 0,035 1,80
2,20
0,30
0,50
1,80
2,20
 
1.8159 50CrV4 6150 0,47
0,55
0,15
0,40
0,70
1,10
0,035 0,035 0,90
1,20
    0,10
0,20
1.7707 30CrMoV9   0,26
0,34
0,15
0,40
0,40
0,70
0,035 0,035 2,30
2,70
0,15
0,25
  0,10
0,20


Material No Symbol AISI-SAE FIELDS OF USE
1.0402 C 22 1020 Very light duty parts in making vehicles, machinery, engine and apparatuses
1.0501 C 35 1035 Making machinery, apparatus and vehicles
1.0503 C 45 1045 Medium duty parts in making vehicles, machinery, engine and apparatuses
1.0535 C 55 1050 Heavy duty parts in making vehicles, machinery, engine and apparatuses such as transmission component shaft, gear etc.
1.0601 C 60 1060 Very heavy duty parts such as shaft, axis, pin etc. in machinery and vehicle manufacture
1.5065 28Mn6 1330 In making general machinery and vehicles
1.7003 38Cr2   In making vehicles and engines
1.7033 34Cr4 5132 Crank shaft and other drive components, fore axis, axle housing parts in making vehicles and machines
1.7035 41Cr4 5140 Crank shaft, front axle, axle casing, steering shaft etc. parts in making vehicles and engines
1.7218 25CrMo4 4130 Axle shaft, axle casing, turbine parts and turbine blade etc. parts in making automobiles and vehicles
1.7220 34CrMo4 4135 Crank shaft, axle shaft and casing, spline shaft etc. parts with high ductility in making automobiles and planes
1.7225 42CrMo4 4140 gearwheel and bandage
1.7228 50CrMo4 4150 parts, transmission, steering and transmission component parts with high ductility in making automobiles and planes
1.7361 32CrMo12 4   Parts requiring endurance, ductility and high endurance in elasticity
1.6511 36CrNiMo4 9840 Very heavy duty parts such as axle casing, axle, crank shaft, axle bar etc. in making vehicles and engines
1.6582 34CrNiMo6 4340 Heavy duty parts such as crank shaft, camshaft in making automobiles and engines
1.6580 30CrNiMo8   Very heavy duty parts in which endurance, ductility and elasticity are prioritized in making automobiles and engines
1.8159 50CrV4 6150 Wearing parts such as gearwheel , shaft baffle part etc. in making automobiles and mechanisms
1.7707 30CrMoV9   Heavy duty crank shaft, stud bolt, bolt etc. parts at high ductility in automobiles and vehicles

MECHANICAL PARTICULARITIES IN PROCUREMENT OF QUENCHED AND TEMPERED STEELS

      Peculiarities to be guaranteed in procurement of material
            diameter
mm
Yielding point
(0,2 limit)
Tensile
strength
rupture
elongation
Lₒ =5dₒ
      Yt Fp
Material No Symbol AISI-SAE Brinell Hardness BSD30(<)   MPa
(min)
MPa
(min)
% ( min )
1.0402 C 22 1020 156 123
174
- 16
40
235 410
520
27
1.0501 C 35 1035 183 143
197
- 160
100
275 490
635
21
1.0503 C 45 1045 207 163
217
- 160
100
330 590
735
17
1.0535 C 55 1050 229 - 229 160
100
360 660
830
15
1.0601 C 60 1060 241 - 241 160
100
385 685
880
14
1.5065 28Mn6 1330 223 - 223        
1.7003 38Cr2   207 - 207        
1.7033 34Cr4 5132 217 - 223        
1.7035 41Cr4 5140 217 - 241        
1.7218 25CrMo4 4130 212 - 212        
1.7220 34CrMo4 4135 217 - 223        
1.7225 42CrMo4 4140 214 - 241        
1.7228 50CrMo4 4150 235 - 248        
1.7361 32CrMo12 4   248 - 248        
1.6511 36CrNiMo4 9840 217 - 241        
1.6582 34CrNiMo6 4340 235 - 241        
1.6580 30CrNiMo8   248 - 269        
1.8159 50CrV4 6150 235 - 248        
1.7707 30CrMoV9   248 - 248        

HEAT TREATMENT CONDITIONS AND PARTICULARITIES OF QUENCHED AND TEMPERED STEELS

      hot working temperature soft annealing temperature soft annealing hardness Normal annealing temperature Hardening medium and cooling temperature Tempering temperature
Material No Symbol AISI-SAE ᵒC ᵒC ≥ BSD 30 ᵒC water
ᵒC
oil
ᵒC
ᵒC
1.0402 C 22 1020 1100
900
650
700
156 880
910
860
890
870
900
540
680
1.0501 C 35 1035 1100
850
650
700
183 860
890
840
870
850
880
540
680
1.0503 C 45 1045 1100
850
650
700
207 840
870
820
850
830
860
540
680
1.0535 C 55 1050 1100
850
650
700
229 830
860
805
835
815
845
540
680
1.0601 C 60 1060 1100
850
650
700
241 820
850
800
830
810
840
540
680
1.5065 28Mn6 1330 1100
850
650
700
223 850
880
820
850
830
860
540
680
1.7003 38Cr2   1100
850
680
720
223 850
890
830
860
840
870
540
680
1.7033 34Cr4 5132 1100
850
680
720
223 850
890
830
860
840
870
540
680
1.7035 41Cr4 5140 1100
850
680
720
241 840
880
820
850
830
860
540
680
1.7218 25CrMo4 4130 1100
850
680
720
212 860
890
840
870
850
880
540
680
1.7220 34CrMo4 4135 1100
850
680
720
223 850
890
830
860
840
870
540
680
1.7225 42CrMo4 4140 1100
850
680
720
241 840
880
820
850
830
860
540
680
1.7228 50CrMo4 4150 1100
850
680
720
248 840
880
820
850
830
860
540
680
1.7361 32CrMo12 4   1100
850
680
720
248 880
920
- 860
900
540
680
1.6511 36CrNiMo4 9840 1100
850
680
720
248 850
880
820
850
830
860
540
680
1.6582 34CrNiMo6 4340 1100
850
680
720
248 850
880
- 830
860
540
680
1.6580 30CrNiMo8   1100
850
680
720
248 850
880
- 830
860
540
680
1.8159 50CrV4 6150 1100
850
680
720
248 840
880
820
850
830
860
540
680
1.7707 30CrMoV9   1100
850
680
720
248 860
900
840
870
850
880
540
680

MECHANICAL PARTICULARITIES OF QUENCHED AND TEMPERED STEELS DEPENDING ON SECTION AND QUENCHING AND TEMPERING PROCESS

      MECHANICAL PARTICULARITIES AT QUENCHED AND TEMPERED STATE
      Yielding point (Re) Tensile strength (Rm) Rupture elongation (A) Constriction (Z) Notch impact (DVM)
      ≤16
mm
>16
≤40
mm
>40
≤100
mm
>100
≤160
mm
≤16
mm
>16
≤40
mm
>40
≤100
mm
>100
≤160
mm
≤16
mm
>16
≤40
mm
>40
≤100
mm
>100
≤160
mm
≤16
mm
>16
≤40
mm
>40
≤100
mm
>100
≤160
mm
≤16
mm
>16
≤40
mm
>40
≤100
mm
>100
≤160
mm
Material No Symbol AISI-SAE ≥ Mpa Mpa > % > % >J
1.0402 C 22 1020 350 300 - - 550
700
500
650
- - 20 22 - - 40 45 - - - - - -
1.0501 C 35 1035 430 370 320 - 630
780
600
750
550
700
- 17 19 20 - 35 40 45 - - - - -
1.0503 C 45 1045 500 430 370 - 700
850
650
800
630
780
- 14 16 17 - 30 35 40 - - - - -
1.0535 C 55 1050 550 500 430 - 800
950
750
900
700
850
- 12 14 15 - 25 30 35 - - - - -
1.0601 C 60 1060 580 520 450 - 850
1000
800
950
750
900
- 11 13 14 - 20 25 30 - - - - -
1.5065 28Mn6 1330 590 490 440 - 780
930
690
840
640
790
- 13 15 16 - 40 45 50 - 40 45 45 -
1.7003 38Cr2   550 450 350 - 800
950
700
850
600
750
- 14 15 17 - 35 40 45 - 40 40 40 -
1.7033 34Cr4 5132 700 590 460 - 900
1100
800
950
700
850
- 11 13 14 - 35 40 45 - 35 40 40 -
1.7035 41Cr4 5140 800 660 560 - 1100
1200
900
1100
800
950
- 10 12 14 - 30 35 40 - 35 40 40 -
1.7218 25CrMo4 4130 700 600 450 400 900
1100
800
950
700
800
650
800
12 14 15 16 50 55 60 60 50 55 55 50
1.7220 34CrMo4 4135 800 650 550 500 1000
1200
900
1000
800
950
750
900
11 12 14 15 45 50 55 55 40 45 50 50
1.7225 42CrMo4 4140 900 750 650 550 1100
1300
1000
1200
900
1100
800
950
10 11 12 13 40 45 50 50 35 40 40 40
1.7228 50CrMo4 4150 900 780 700 650 1100
1300
1000
1300
900
1100
850
1000
9 10 12 13 40 45 50 50 35 35 35 35
1.7361 32CrMo12 4   1030 1030 885 785 1230
1420
1230
1420
1080
1270
980
1180
9 9 10 11 35 35 40 45 34 34 41 48
1.6511 36CrNiMo4 9840 900 800 700 600 1100
1300
1100
1200
900
1100
800
950
10 11 12 13 45 50 55 60 40 45 50 50
1.6582 34CrNiMo6 4340 1000 900 800 700 1200
1400
1100
1300
1000
1200
900
1100
9 10 11 12 40 45 50 55 40 50 50 50
1.6580 30CrNiMo8   1050 1050 900 800 1250
1450
1250
1450
1100
1300
1000
1200
9 9 10 11 40 40 45 50 35 35 40 50
1.8159 50CrV4 6150 900 800 700 650 1100
1300
1000
1200
900
1100
850
1000
9 10 12 13 40 45 50 50 35 35 35 35
1.7707 30CrMoV9   1050 1020 900 800 1250
1450
1200
1450
1100
1300
1000
1200
9 9 10 11 35 35 40 45 25 30 35 40


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