TECHNICAL AREA

At ALOK, research commences with the customers by requesting them to define their technical and engineering needs. Our products are developed with a concept of minimal costs and enhancement of our customers’ product quality.

Our passion for manufacturing excellence, commitment to world-class quality and on time delivery is clearly reflected in our state of art manufacturing facility Our plant located in Palghar District – Maharashtra, India houses the latest technologically advanced Machinery and Equipment.
We place tremendous confidence in our well-trained and highly skilled work force.

“Imagine the satisfaction that lies in turning
A MILLION DREAMS into reality”

CONVERSTION CHART

HARDNESS CONVERSION CHART

TABLE 2A Approximate Hardness Conversion Numbers for Nonaustenitic Steelsˆ
(Rockwell C to other Hardness Numbers)
(Rockwell C to other Hardness Numbers)
Rockwell C Scale, 150-kgf Load, Diamond PenetratorVickers Hardness NumberBrinell Hardness, 3000-kgf Load, 10-mm BallKnoop Hardness, 500-gf Load and OverRockwell A Scale, 60-kgf Load, Diamond Penetrator15N Scale, 15-kgf Load, Diamond Penetrator30N Scale 30-kgf Load, Diamond Penetrator45N Scale, 45-kgf Load, Diamond PenetratorApproximate Tensile Strength, ksi (MPa)
4848445551074.784.566.752.5238 (1640)
4747144249574.183.965.851.4229 (1580)
4645843248073.683.564.850.3221 (1520)
4544642146673.183.064.049.0215 (1480)
4443440945272.582.563.147.8208 (1430)
4342340043872.082.062.246.7201 (1390)
4241239042671.581.561.345.5194 (1340)
4140238141470.980.960.444.3188 (1300)
4039237140270.480.459.543.1182 (1250)
3938236239169.979.958.641.9177 (1220)
3837235338069.479.457.740.8171 (1180)
3736334437068.978.856.839.6166 (1140)
3635433636068.478.355.938.4161 (1110)
3534532735167.977.755.037.2156 (1080)
3433631934267.477.254.236.1152 (1050)
3332731133466.876.653.334.9149 (1030)
3231830132666.376.152.133.7146 (1010)
3131029431865.875.651.332.5141 (970)
3030228631165.375.050.431.3138 (950)
2929427930464.674.549.530.1135 (930)
2828627129764.373.948.628.9131 (900)
2727926429063.873.347.727.8128 (880)
2627225828463.372.846.826.7125 (860)
2526625327862.872.245.925.5123 (850)
2426024727262.471.645.024.3119 (820)
2325424326662.071.044.023.1117 (810)
2224823726161.570.543.222.0115 (790)
2124323125661.069.942.320.7112 (770)
2023822625160.569.441.519.6110 (760)
TABLE 2B Approximate Hardness Conversion Numbers for Nonaustenitic Steels
(Rockwell B to other Hardness Numbers)
Rockwell Superficial Hardness
Rockwell B Scale 100-kgf Load 1/16-in. (1.588-mm) BallVickers Hardness NumberBrinell Hardness, 3000-kgf Load, 10-mm BallKnoop Hardness, 500-gf Load and OverRockwell F Scale, 60-kgf Load, 1/16-in. (1.588-mm) BallRockwell F Scale, 60-kgf Load, 1/16-in. (1.588-mm) Ball15T Scale, 15-kgf Load, 1/16-in. (1.588-mm) Ball30T Scale, 30-kgf Load, 1/16-in. (1.588-mm) Ball45T Scale, 45-kgf Load, 1/16-in. (1.588-mm) BallApproximate Tensile Strength ksi (MPa)
10024024025161.593.183.172.9166 (800)
9923423424660.992.882.571.9114 (785)
9822822824160.292.581.870.9109 (750)
9722222223659.592.181.169.9104 (715)
9621621623158.991.880.468.9102 (705)
9521021022658.391.579.867.9100 (690)
9420520522157.691.279.166.998 (675)
9320020021657.090.878.465.994 (650)
9219519521156.490.577.864.892 (635)
9119019020655.890.277.163.890 (620)
9018518520155.289.976.462.889 (615)
8918018019654.689.575.861.888 (605)
8817617619254.089.275.160.886 (590)
8717217218853.488.974.459.884 (580)
8616916918452.888.673.858.883 (570)
8516516518052.388.273.157.882 (565)
8416216217651.787.972.456.881 (560)
8315915917351.187.671.855.880 (550)
8215615617050.687.371.154.877 (530)
8115315316750.086.970.453.873 (505)
8015015016449.586.669.752.872 (495)
7914714716148.986.369.151.870 (485)
7814414415848.486.068.450.869 (475)
7714114115547.985.667.749.868 (470)
7613913915247.385.367.148.867 (460)
7513713715046.899.685.066.447.866 (455)
7413513514746.399.184.765.746.865 (450)
7313213214545.898.584.365.145.864 (440)
7213013014345.398.084.064.444.863 (435)
7112712714144.897.483.763.743.862 (425)
7012512513944.396.883.463.142.861 (420)
6912312313743.896.283.062.441.860 (415)
6812112113543.395.682.761.740.859 (405)
6711911913342.895.182.461.039.858(400)

SURFACE ROUGHNESS

Ra
(micrometers)
Ra
(microinches)
RMS  CLA (N)  Rt  N  Cut-off Length
inchmm
0.02511.110.310.0030.08
0.0522.220.520.010.25
0.144.440.830.010.25
0.288.881.240.010.25
0.41617.6162.050.010.25
0.83232.5324.060.030.8
1.66364.3638.070.030.8
3.2125137.51251380.12.5
6.32502752502590.12.5
12.550055050050100.12.5
25.0100011001000100110.38.0
50.0200022002000200120.38.0
 
Ra =Roughness Average in micrometers or microinches.
RMS =Root Mean Square in microinches
CLA =Center Line Average in Microinches
Rt =Roughness Ttal in microns
N =New ISO (grade) scale numbers
Порезка =Length required for sample.

INCHES TO MM

inchMetric (mm)inchMetric (mm)
1/46.35376.2
5/167.943 1/879.37
3/89.533 1/482.55
7/1611.113 3/885.72
1/212.73 1/288.9
9/1614.293 5/892.07
5/815.883 3/495.25
11/1617.463 7/898.42
3/419.054101.6
13/1620.644 1/8104.77
7/822.234 1/4107.95
15/1623.814 3/8111.12
125.44 1/2114.3
1 1/828.574 5/8117.47
1 1/431.754 3/4120.65
1 3/834.934 7/8123.82
1 1/238.15127
1 5/841.285 1/8130.17
1 3/444.455 1/4133.52
1 7/847.635 3/8136.8
250.85 1/2139.7
2 1/853.975 5/8142.87
2 1/457.155 3/4146.05
2 3/860.325 7/8149.22
2 1/263.56152.4
2 5/866.676 1/8155.57
2 3/469.856 1/4158.75
2 7/873.026 3/8161.92

FEET TO MM

Feet (ft’)Meter (Mtr)Feet (ft’)Meter (Mtr)
10.3216.4
20.61226.71
30.91237.01
41.22247.32
51.52257.62
61.83267.92
72.13278.23
82.44288.53
92.74298.84
103.05309.14
113.35319.45
123.66329.75
133.963310.06
144.273410.36
154.573510.67
164.883610.97
175.183711.28
185.493811.58
195.793911.89
206.14012.19

© Copyright 2024 Alok Ingots. All Rights Reserved

Top

Alok India