Tabela de processos de tratamento térmico para usinagem: materiais e técnicas comuns

Table of Heat Treatment Processes for Machining: Common Materials and Techniques

The table below presents the heat treatment information for various types of steels commonly used in machining, such as stainless steel, carbon structural steel, carbon tool steel, alloy carburized steel, die steel, quenched and tempered steel , spring steel, nitrided steel, alloy cutting tool steel and bearing steel.

The data includes details on annealing temperature, quenching temperature, martensite point and tempering temperature.

Heat treatment

Heat Treatment Table for Stainless Steel

Steel type Stainless steel
Steel Grade 1Ch15 2Ch13 3Ch13 1Cr18Ni9Ti
4Ch13
Annealing Temperature 780 850 780 850 780 850 820
Quenching temperature 1020 1050 1050 1050
martensite point 350 350 240 270
Quenching Temperature ℃ 150 Hardness after tempering HRC 58
200 41 47 52 57
250 56
300 40 46 51 55
350 54
400 39 44 50 54
450 53
500 38 42 49 50
550 31 37 43 45
600 24 28 34 40
650 22 24 30 38

Heat Treatment Table for Carbon Steel

Steel type Carbon Structural Steel Carbon steel for tools
Steel Grade 35 45 50 T8 T12
40 T7 T10
Annealing Temperature 880 positive 860 positive 840 positive 760 770
Quenching Temperature 850 840 830 780 780
martensite point 350 340 320 230 210
Quenching Temperature ℃ 150 Hardness after tempering HRC 52 57 58 62 64
200 50 56 57 60 62
250 48 54 54 57 60
300 46 48 51 55 57
350 43 45 46 51 53
400 39 41 43 47 49
450 34 36 38 42 44
500 30 32 34 38 39
550 26 28 30 34 35
600 22 24 25 29 31
650 18 20 21 25 28

Heat Treatment Table for Carbon Steel Alloy

Steel type Alloy carbon steel
Steel Grade 20Mn2TiB 18CrNiw 20 cr 20 cr 25CrNiW
18CrMnTi 205iMnV1 30CrMnMoTi
Annealing Temperature 900 positive 900 positive 900 positive 940 positive 850
Quenching temperature 860 860 880 800 850
martensite point 360 310 380 300
Quenching Temperature ℃ 150 Hardness after tempering HRC 44 45 47 63 50
200 42 44 45 59 48
250 41 43 42 56 45
300 40 42 40 54 43
350 39 41 38 53 40
400 39 40 51 38
450 38 39 49 36
500 36 37 46 34
550 32 33 30
600 28 30 27
650 25 26 24

Heat Treatment Table for Steel Dies

Steel type Die steel
Steel Grade Type Cr12 3Cr2W8 5CrMnMo 8Cr3 Cr9si2
5CrNiMo 7Cr3
Annealing Temperature 860 820 850 830 800
Quenching temperature 1000 1080 850 870 1070
martensite point 220 360 220 220
Quenching Temperature ℃ 150 Hardness after tempering HRC 63 52 59 62 62
200 61 49 58 60 61
250 60 48 56 59 60
300 59 48 53 58 59
350 58 47 51 56 58
400 58 46 48 53 54
450 57 44 45 50 50
500 56 45 42 47 47
550 53 48 39 45 43
600 50 45 35 41 39

Heat treatment table for quenched and tempered steel

Steel type Quenched and tempered steel
Steel Grade 30CrNi3 35CrMnSi 37CrNiB 40cr 45cr
30CrMnNi2MoV 30CrMnSi 35CrMo 50B 45Mn2
Annealing Temperature 820 860 820 840 840
Quenching temperature 860 880 860 850 850
martensite point 300 360 270 320 310
Quenching Temperature ℃ 150 Hardness after tempering HRC 51 54 51 54 56
200 50 53 50 51 54
250 48 51 48 48 53
300 46 48 46 47 51
350 44 46 43 46 49
400 42 44 41 43 48
450 39 41 39 42 46
500 35 38 37 38 44
550 32 35 34 34 40
600 27 28 29 31 35
650 25 27 25 25 28

Heat treatment table for spring steel and nitrided steel

Steel type Steel spring Nitrided steel
Steel Grade 50CrV 60Si2Mn 65 minutes 38CrAl
55Si2Mn 60Mn 38CrMoAl
annealing temperature 860 810 810 950 positive
quenching temperature 860 860 810 940
martensite point 300 300 270 360
Quenching Temperature ℃ 150 Hardness after tempering HRC 57 62 61 57
200 55 59 58 55
250 53 57 56 53
300 51 55 54 51
350 48 51 50 48
400 46 48 47 46
450 43 45 43 43
500 40 41 38 40
550 36 37 34 36
600 32 33 30 34
650 30 31 26 30

Heat Treatment Table for Steel for Alloy Cutting Tools and Bearing Steel

Steel type Alloy Steel Cutting Tool Bearing steel
Steel Grade 9Crsi CrMn SiMn GCr15 GCr15SiMn
CrWMn CrW5 Cr20
Annealing Temperature 800 790 800 790 790
Quenching Temperature 860 840 850 850 830
martensite point 170 250 240 240 200
Quenching Temperature ℃ 150 Hardness after tempering HRC 64 64 65 63 64
200 63 62 63 61 63
250 61 60 61 59 62
300 59 58 59 55 59
350 56 55 56 52 53
400 54 53 54 49 51
450 51 50 51 45
500 48 47 48 41
550 44 43 44 36
600 40 39 40 28
650 36 35 36 26

Heat Treatment Table for Spring Steel

Steel type name Steel spring Nitrided steel
Steel Grade 50CrV 60Si2Mn 65 minutes 38CrAl
55Si2Mn 60Mn 38CrMoAl
Annealing Temperature 860 810 810 950 positive
Quenching temperature 860 860 810 940
martensite point 300 300 270 360
Quenching Temperature ℃ 150 Hardness after tempering HRC 57 62 61 57
200 55 59 58 55
250 53 57 56 53
300 51 55 54 51
350 48 51 50 48
400 46 48 47 46
450 43 45 43 43
500 40 41 38 40
550 36 37 34 36
600 32 33 30 34
650 30 31 26 30

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