AISI 8620 Round Bars

AISI 8620 Round Bars

AISI 8620 Round Bars Property

  • Round bar OD: 3-~800mm
  • Square bar Sizes: 4 to 100mm
  • Flat bar Sizes: 2 -100mm

SAE 8620 Steel Bright Bar in Hex, Flat and Square Shapes

SAE 8620 Round Bars

SAE 8620 Round Bars

AISI 8620 Rod

AISI 8620 Rod

SAE 8620 Alloy Steel Bright Bars

SAE 8620 Alloy Steel Bright Bars

Table of Contents

SAE 8620 Alloy Steel Round Bar in Normalizing, Annealing and Rolled Condition

SAE 8620 Annealing 8620 Steel Normalizing
Temperature, °C 820-850 880-920
Cooling Speed Rate Slow Relatively fast
Cooling Furnace Cooling Air Cooling
Heat Treatment Cycle Long time Short time
Grain size Normal Good

8620 Bar in High Strength and Toughness

Properties Imperial Metric
Thermal conductivity 323 BTU in/hr.ft².°F 46.6 W/mK
Refer Fully Annealed DIN 1.6523 Flat Bar Tempering Chart
Section 40mm 50mm 75mm 150mm
oC 25 40 100 150
AISI 8620H and SAE 8620 Steel Bars for camshafts, gears, pinions, kingpins and Arbors

AISI 8620 Steel Equivalent

Country BS DIN EN USA Japan Germany
Standard BS 970 DIN 1654 EN 10084 ASTM A29 JIS G4103 WERKSTOFF NR.
Grades 805M20 1.6523/
21NiCrMo2		 20NiCrMo2-2 8620 SNCM 200 (H) 21NiCrMo22, 21NiCrMo2

SAE 8620 Steel Bars Specification

Size 2-100 mm A/F
Tolerance H10,H11, H12, K11, K12, H13K9, K10, H9, H8,
Square bar Size 4 to 100 mm
Finish peeled, hot rolled, Bright, Polish, Grinding, centreless ground, Cold drawn, smooth turned,Centreless Ground, Black ,slit rolled edge, hot rolled annealed, Rough Turned
Flat bar Sizes Thickness: 2 -100mm
Width: 10 to 500mm
Round bar Size Diameter: 3 -~800 mm
Technique Hot Rolled, Cold Drawn, Cold Rolled, Forged, Rod
Surface Hairline, Polished ,Bright, Sand Blasting Finished, Cold Drawn,Hot Rolled Pickled
Condition Hardened & tempered, annealed
Form Triangle, I/H Bar, Flat Bar, Blocks, Rings, Rectangle, Hex, Hollow, Threaded, Profiles, Precision Square, T-Bar, Rod, Round, Ground Bar, Round Rod, Half Round Bar, Forging , Welding Rod, Ingot, Channel Bar, Billet etc.
Processing Bar cutting – 650 mm

Types of AISI 8620 Round Bars

AISI 8620 Steel Hex Bars

AISI 8620 Steel Hex Bars

1.6523 Flat Bars

1.6523 Flat Bars

21NiCrMo2 Square Bars

21NiCrMo2 Square Bars

SAE 8620 Chemical Composition

Grade C P S Cr Si Mn Ni Mo
8620 0.18-0.23 ≤0.035 ≤0.04 0.4-0.6 0.15-0.35 0.70-0.90 0.4-0.7 0.15-0.25
8620H 0.17-0.23 ≤0.035 ≤0.04 0.35-0.65 0.15-0.35 0.60-0.95 0.35-0.75 0.15-0.25

AISI 8620 Round Bars Mechanical Properties

Yield Strength Tensile Strength Elongation Impact Charpy-V Reduction of Area
Annealed 385 Mpa 535 Mpa 31.3% 112 J 62%
Normalized 355 Mpa 635 Mpa 26.3% 100 J 60%

SAE 8620 Density

Density g/cm3 7.85

AISI 8620 Bars Hardness in HRc

Hardness 37-43HRc

SAE 8620 Alloy Steel Round Bar Weight Chart

Width or Dia.(mm) Wght / m Perimeter Sectional Area
Round
(kg)		 Square
(kg)		 Round
(cm)		 Square
(cm)		 Round
(cm²)		 Square
(cm²)
11 0.76 0.96 3.47 4.4 0.95 1.21
12 0.89 1.13 3.77 4.8 1.13 1.44
14 1.21 1.54 4.41 5.7 1.55 1.97
16 1.58 2.01 5.03 6.4 2.01 2.56
18 2.01 2.55 5.66 7.2 2.54 3.24
20 2.47 3.14 6.28 8.1 3.15 4.01
22 2.98 3.81 6.92 8.7 3.80 4.84
25 3.85 4.92 7.85 10.0 4.92 6.24
5.0 0.16 0.21 1.58 2.1 0.21 0.26
5.5 0.19 0.24 1.78 2.2 0.24 0.30
6.0 0.22 0.27 1.87 2.4 0.27 0.37
7.0 0.30 0.38 2.20 2.8 0.38 0.49
8.0 0.39 0.51 2.52 3.1 0.51 0.63
9.0 0.51 0.65 2.83 3.7 0.64 0.82
10 0.63 0.73 3.14 4.0 0.79 1.00
28 4.83 6.15 8.80 11.2 6.16 7.84
32 6.31 8.04 10.05 12.8 8.04 10.24
56 19.34 24.62 17.59 22.4 24.63 31.36
63 24.47 31.16 19.79 25.2 31.17 36.69
71 31.08 39.56 22.31 28.4 39.59 50.41
36 7.99 10.18 11.31 14.4 10.17 12.96
40 9.86 12.56 12.57 16.0 12.58 16.00
45 12.49 15.91 14.14 18.0 15.91 20.25
50 15.42 19.62 15.72 20.1 19.63 25.00
80 39.47 50.23 25.13 32.0 50.28 64.01

8620 Steel Properties

Density g/cm3 Melting Point (Deg F) Thermal ConductivityW/(m*K) Poisson’s ratio Thermal expansion (20 ºC)(ºC ˉ ¹)
7.85 2600 46.6 0.27-0.30 12.2*10^-6

DIN 1.6523 Flat Bar Thickness Chart

Thickness mm
Width
mm		 8 12 12 14 15 16 16 18 20 22 22 25 30 35 40 40 45 55 55 60 70 75 80 90
mm Weight Kg/m
Weight Kg/m
35 6,04 6,04 6,87 8,24
40 6,28 6,91 6,91 7,85 9,42 10,99
45 7,06 7,77 7,77 8,83 10,60 12,36 14,13 14,13
50 4,71 4,71 5,49 5,89 6,28 6,28 7,06 7,85 8,63 8,63 9,81 11,77 13,74 15,70 15,70 17,66
55 5,18 6,04 6,91 6,91 7,77 9,50 9,50 15,11 17,27 19,43
55 5,18 5,18 6,04 6,91 6,91 7,77 9,50 9,50 15,11 17,27 17,27 19,43
65 6,12 6,12 7,14 7,65 8,16 8,16 11,22 11,22 15,31 17,86 17,86 20,41 22,96 28,06 28,06 30,61
70 6,59 6,59 7,69 8,24 8,79 8,79 9,89 12,09 12,09 19,23 21,98 21,98 24,73 30,22
75 4,71 7,06 7,06 8,24 8,83 9,42 9,42 10,60 11,77 12,95 12,95 14,72 17,66 20,61 23,55 23,55 26,49 32,38 32,38 35,32 41,21
80
80 5,02 7,54 7,54 8,79 9,42 10,05 10,05 11,30 12,56 13,82 13,82 15,70 18,84 21,98 25,12 25,12 28,26 34,54 34,54 37,68 43,96 47,10
90 5.65 8,48 8,48 9,89 10,60 11,30 11,30 12,72 14,13 15,54 15,54 17,66 21,19 24,73 28,26 28,26 31,79 38,86 38,86 42,39 49,45 52,99 56,52
100 6,28 9,42 9,42 10,99 11.77 12,56 12,56 14,13 15,70 17,27 17,27 19,62 23,55 27,47 31,40 31,40 35,32 43,17 43,17 47,10 54,95 58,87 62,80 70,65
110 6,91 10,36 10,36 12,09 12,95 13,82 13,82 15,54 17,27 19,00 19,00 21,59 25,90 30,22 34,54 34,54 38,86 47,49 47,49 51,81 60,44 64,76 69,08 77,71
110 6,91 10,36 10,36 12,09 13,82 13,82 15,54 19,00 19,00 30,22 34,54 34,54 38,86 47,49 51,81 60,44 64,76 69,08 77,71
120 7,54 11,30 11,30 13,19 14,13 15,07 15,07 16,96 18,84 20,72 20,72 23,55 28,26 32,97 37,68 37,68 42,39 51,81 51,81 56,52 65,94 70,65 75,36
120 7,54 11,30 11,30 13,19 15,07 15,07 16,96 18,84 20,72 20,72 32,97 37,68 37,68 42,39 51,81 51,81 56,52 65,94 70,65 75,36
130 8,16 12,25 12,25 14,29 15,31 16,33 16,33 18,37 20,41 22,45 22,45 25,51 30,61 35,72 40,82 40,82 45,92 56,13 56,13 61,23 71,43 76,54 81,64
140 13,19 13,19 15,39 16,48 17,58 17,58 19,78 21,98 24,18 24,18 27,47 32,97 38,46 43,96 43,96 49,45 60,44 60,44 65,94 76,93 82,42 87,92
140 13,19 13,19 15,39 16,48 17,58 17,58 19,78 21,98 24,18 24,18 27,47 32,97 38,46 43,96 43,96 49,45 60,44 60,44 65,94 76,93 82,42 87,92
150 14,13 14,13 16,48 17,66 18,84 18,84 21,19 23,55 25,90 25,90 29,44 35,32 41,21 47,10 47,10 52,99 64,76 64,76 70,65 82,42 88,31 94,20
160 15,07 15,07 17,58 20,10 20,10 22,61 27,63 27,63 43,96 50,24 50,24 56,52 87,92 94,20 100,48
170 16,01 16,01 18,68 20,02 21,35 21,35 24,02 26,69 29,36 29,36 33,36 40,03 46,71 53,38 53,38 60,05 73,40 73,40 80,07 93,41 100,09 106,76
180 16,96 16,96 19,78 21,19 22,61 22,61 25,43 28,26 31,09 31,09 35,32 42,39 49,45 56,52 56,52 63,58 77,71 77,71 84.78 98,91 105,97 113,04
190 17,90 17,90 20,88 22,37 23,86 23,86 26,85 29,83 32,81 32,81 37,29 44,74 52,20 59,66 59,66 67,12 82,03 82,03 89,49 104,40
190 17,90 17,90 20,88 22,37 23,86 23,86 26,85 32,81 32,81 52,20 59,66 59,66 67,12 82,03 89,49 104,40
200 18,84 18,84 21,98 23,55 25,12 25,12 28,26 31,40 34,54 34,54 54,95 62,80 62,80 70,65 86,35 94,20
220 34,54 37,99 37,99 43,17 51,81 60,44 69,08 69,08 77,71 94,98 94,98 103,62
240 37,68 41.45 41.45 47,10 56,52 65,94 75,36 75,36 84,78 103,62 103,62 113,04
250 39,25 43,17 43,17 68,69 78,50 78,50 88,31 107,94
250 39,25 43,17 43,17 49,06 58,87 68,69 78,50 78,50 88,31 107,94 107,94 117,75
260 40,82 44,90 44,90 51,02 61,23 71,43 81,64 81,64 91.84 112,25 112,25 122,46
280 43,96 48,36 48,36 54,95 65,94 76,93 87,92 87,92 98,91 120,89 120,89 131,88
300 47.10 51,81 51,81 58,87 70,65 82,42 94,20 94,20 105,97 129,52 129,52 141,30

UNS G86200 Bright Bars Tolerance

Supply Form Size(mm) Tolerance

Round

 Φ6-Φ100 Bright/Black Best H11
Φ16-Φ350 Black -0/+1mm
Peeled/ground Best H11
Φ90-Φ1000 Black -0/+5mm
Rough Turned -0/+3mm
Flat/Square/Block Thickness :120-800 Black -0/+8mm
Width:120-1500 Rough Machined -0/+3mm

SNCM220 Rod Normalizing & Annealing

8620 annealing SAE 8620 normalizing
Temperature 820℃ – 850℃ 1675ºF (910ºC)

AISI 8620 Alloy Steel Round Bars Tempering Chart

Section 40mm 50mm 75mm 150mm
oC 25 40 100 150

Uses of AISI 8620 Round Bars

  • Camshafts
  • Ring gears
  • Chains
  • Gears
  • Crankshafts
  • Fasteners

Physical properties of 8620 grade steel

Density g/cm3 7.85
Melting point Deg F 2600
Poisson’s ratio 0.27-0.30
Thermal expansion (20 ºC)(ºC ˉ ¹) 12.2*10^-6
Specific heat capacity J/(kg*K) 477
Thermal conductivity W/(m*K) 46.6
Electric resistivity Ohm*m 2.34*10^-7

21NiCrMo2 Grade Thermal Properties

Properties Imperial Metric
Thermal conductivity 323 BTU in/hr.ft².°F 46.6 W/mK

Surface finish of AISI 8620 Steel

Black Finish

Black

Rough turned finish

Rough turned

peeled finish

Peeled