Hardness Test
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Vision Alloys is a trusted manufacturer, supplier, and stockist of SS 420 round bars, noted for their ideal hardness, strength, and corrosion resistance. The 420 bars find tremendous use in cutlery, surgical instruments, pump shafts, and automotive parts where wear resistance and hardness are very vital.
Our stainless steel 420 round bars are available in a range of sizes and finishes, making them ideal for various industrial and commercial applications. As a 420 round bar manufacturer, we ensure that our products meet ASTM, ASME, and DIN standards, providing reliability and superior performance.
420 stainless steel round rods are made up of 12–14% chromium, up to 0.40% carbon, and small amounts of manganese and silicon. These chemicals make the steel resilient and resistant to corrosion. These bars have a tensile strength of up to 750 MPa, a yield strength of 500 MPa, and a hardness of around 50 HRC, making them highly suitable for applications requiring wear resistance and durability.
We offer SS 420 round rods in diameters ranging from 5mm to 500mm, with customized lengths available to match specific project requirements. Blade manufacturing, gear components, fasteners, and pump parts commonly use these bars, ensuring high performance in challenging environments.
At Vision Alloys, we are committed to delivering high-quality 420 stainless steel round bars at competitive prices. Our rigorous quality control processes ensure consistency and precision, making us a preferred choice for industries worldwide. With a strong global supply network, we ensure timely deliveries and excellent customer service.
Standard | ASTM A479, ASTM A276, AMS 5511, AMS 5513, AMS 5647 |
Dimensions | DIN, EN, ASTM, JIS, ASME, BS, AISI |
Hex Bar Size | 2-100mm A/F |
Round Bar Size | Diameter: 3-~800mm |
Flat Bar Size | Thickness: 2 -100mm |
Width: 10 to 500mm | |
Angle Bar Size | 3mm*20mm*20mm~12mm*100mm*100mm |
Square Bar Size | 4 to 100mm |
Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
Rectangular Bars Section | 3.0 to 12.0mm thickness |
Threaded Bar Billet Size | 1/2 to 495mm Diameter |
Rectangles Size | 33 x 30mm to 295 x 1066mm |
Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
Surface | Hot Rolled Pickled, Bright, Sand Blasting Finished, Cold Drawn, Hairline,Polished |
Form | Rod, Round, Channel Bar, T-Bar, Flat Bar, Precision Ground Bar, Blocks, Square, Rings, Round Rod, Triangle, Hollow, Rectangle, Threaded, Hex (A/F), Profiles, Half Round Bar, Ingot, Billet, I/H Bar, Forging etc. |
Applications:Stainless Steel 420 round bars find their place in a wide range of industries, including cutlery manufacturing, surgical instruments, molds, and some automotive and aerospace components. Their hardness and wear resistance make them an essential material for products that need to maintain their edge and shape over time.
Heat Resistance: While not as heat-resistant as other stainless steel grades, 420 can still maintain its properties at elevated temperatures. This makes it suitable for applications in environments with moderate heat exposure.
To preserve the high standards of our selection of industrial round bar, we have always adhered to a systematic quality management process.
Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of round bar.
STANDARD | WERKSTOFF NR. | UNS | JIS |
SS 420 | 1.4021 | S42000 | SUS 420 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
SS 420 | 0.15 max | 1.00 max | 1.00 max | 0.04 max | 0.03 min | min: 12.0 - max: 14.0 | - | – | – |
Tensile Strength ksi (MPa) min | Yield Strength 0.2% offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
65 (450) | 30 (205) | 20 | 217 | 96 |
Hardness Test
Chemical and Physical Testing
Tensile test on metals - ISO 6892-1
Universal Testing Machine
Stainless Steel 420 Flat bar – metric sizes and weights
|
|||
---|---|---|---|
Flat Size
|
KG’s per Metre
|
Standard Length (metres)
|
Colour Code
|
10 x 3
|
0.24
|
6.0
|
Blue
|
13 x 3
|
0.31
|
6.0
|
Blue
|
13 x 5
|
0.46
|
6.0
|
Orange
|
16 x 3
|
0.38
|
6.0
|
Blue
|
16 x 5
|
0.64
|
6.0
|
Orange
|
16 x 8
|
1.03
|
6.0
|
Red
|
20 x 3
|
0.48
|
6.0
|
Blue
|
20 x 5
|
0.81
|
6.0
|
Orange
|
20 x 6
|
0.97
|
6.0
|
White
|
20 x 10
|
1.61
|
6.0
|
Yellow
|
25 x 3
|
0.60
|
6.0
|
Blue
|
25 x 5
|
1.01
|
6.0
|
Orange
|
25 x 6
|
1.21
|
6.0
|
White
|
25 x 8
|
1.61
|
6.0
|
Red
|
25 x 10
|
2.01
|
6.0
|
Yellow
|
25 x 12
|
2.41
|
6.0
|
Pink
|
32 x 3
|
0.77
|
6.0
|
Blue
|
32 x 5
|
1.29
|
6.0
|
Orange
|
32 x 6
|
1.55
|
6.0
|
White
|
32 x 8
|
2.06
|
6.0
|
Red
|
32 x 10
|
2.58
|
6.0
|
Yellow
|
32 x 12
|
3.09
|
6.0
|
Pink
|
40 x 3
|
0.97
|
6.0
|
Blue
|
40 x 5
|
1.61
|
6.0
|
Orange
|
40 x 6
|
1.93
|
6.0
|
White
|
40 x 8
|
2.58
|
6.0
|
Red
|
40 x 10
|
3.22
|
6.0
|
Yellow
|
40 x 12
|
3.86
|
6.0
|
Pink
|
40 x 16
|
5.15
|
6.0
|
Grey
|
40 x 20
|
6.14
|
6.0
|
Green
|
50 x 3
|
1.21
|
6.0
|
Blue
|
50 x 5
|
2.01
|
6.0
|
Orange
|
50 x 6
|
2.41
|
6.0
|
White
|
50 x 8
|
3.22
|
6.0
|
Red
|
50 x 10
|
4.02
|
6.0
|
Yellow
|
50 x 12
|
4.83
|
6.0
|
Pink
|
50 x 16
|
6.44
|
6.0
|
Grey
|
50 x 20
|
8.05
|
6.0
|
Green
|
50 x 25
|
10.1
|
6.0
|
Purple
|
65 x 3
|
1.57
|
6.0
|
Blue
|
65 x 5
|
2.62
|
6.0
|
Orange
|
65 x 6
|
3.14
|
6.0
|
White
|
65 x 8
|
4.18
|
6.0
|
Red
|
65 x 10
|
5.23
|
6.0
|
Yellow
|
65 x 12
|
6.28
|
6.0
|
Pink
|
65 x 16
|
8.37
|
6.0
|
Grey
|
65 x 20
|
10.5
|
6.0
|
Green
|
65 x 25
|
13.1
|
6.0
|
Purple
|
75 x 5
|
3.02
|
6.0
|
Orange
|
75 x 6
|
3.62
|
6.0
|
White
|
75 x 8
|
4.83
|
6.0
|
Red
|
75 x 10
|
6.04
|
6.0
|
Yellow
|
75 x 12
|
7.24
|
6.0
|
Pink
|
75 x 16
|
9.66
|
6.0
|
Grey
|
75 x 20
|
12.1
|
6.0
|
Green
|
75 x 25
|
15.1
|
6.0
|
Purple
|
75 x 40
|
24.1
|
6.0
|
Yellow
|
90 x 5
|
3.62
|
6.0
|
Orange
|
90 x 6
|
4.35
|
6.0
|
White
|
90 x 8
|
5.79
|
6.0
|
Red
|
90 x 10
|
7.24
|
6.0
|
Yellow
|
90 x 12
|
8.69
|
6.0
|
Pink
|
100 x 5
|
4.02
|
6.0
|
Orange
|
100 x 6
|
4.83
|
6.0
|
White
|
100 x 8
|
6.44
|
6.0
|
Red
|
100 x 10
|
8.05
|
6.0
|
Yellow
|
100 x 12
|
9.66
|
6.0
|
Pink
|
100 x 16
|
12.9
|
6.0
|
Grey
|
100 x 20
|
16.1
|
6.0
|
Green
|
100 x 25
|
20.1
|
6.0
|
Purple
|
100 x 50
|
40.2
|
6.0
|
Green
|
110 x 6
|
5.31
|
6.0
|
White
|
110 x 8
|
7.08
|
6.0
|
Red
|
110 x 10
|
8.85
|
6.0
|
Yellow
|
110 x 12
|
10.6
|
6.0
|
Pink
|
130 x 5
|
5.23
|
6.0
|
Orange
|
130 x 6
|
6.28
|
6.0
|
White
|
130 x 8
|
8.37
|
6.0
|
Red
|
130 x 10
|
10.5
|
6.0
|
Yellow
|
130 x 12
|
12.6
|
6.0
|
Pink
|
130 x 16
|
16.7
|
6.0
|
Grey
|
130 x 20
|
20.9
|
6.0
|
Green
|
130 x 25
|
26.2
|
6.0
|
Purple
|
150 x 5
|
6.04
|
6.0
|
Orange
|
150 x 6
|
7.24
|
6.0
|
White
|
150 x 8
|
9.66
|
6.0
|
Red
|
150 x 10
|
12.1
|
6.0
|
Yellow
|
150 x 12
|
14.5
|
6.0
|
Pink
|
150 x 16
|
19.3
|
6.0
|
Grey
|
150 x 20
|
24.1
|
6.0
|
Green
|
150 x 25
|
30.1
|
6.0
|
Purple
|
150 x 50
|
60.4
|
6.0
|
Green
|
180 x 5
|
7.24
|
6.0
|
Orange
|
180 x 6
|
8.69
|
6.0
|
White
|
180 x 10
|
14.5
|
6.0
|
Yellow
|
180 x 12
|
17.4
|
6.0
|
Pink
|
180 x 16
|
23.2
|
6.0
|
Grey
|
180 x 20
|
29.0
|
6.0
|
Green
|
180 x 25
|
36.2
|
6.0
|
Purple
|
200 x 6
|
9.66
|
6.0
|
White
|
200 x 8
|
12.9
|
6.0
|
Red
|
200 x 10
|
16.1
|
6.0
|
Yellow
|
200 x 12
|
19.3
|
6.0
|
Pink
|
200 x 16
|
25.7
|
6.0
|
Grey
|
200 x 20
|
32.2
|
6.0
|
Green
|
200 x 25
|
40.3
|
6.0
|
Purple
|
250 x 6
|
12.1
|
6.0
|
White
|
250 x 8
|
16.1
|
6.0
|
Red
|
250 x 10
|
20.1
|
6.0
|
Yellow
|
250 x 12
|
24.1
|
6.0
|
Pink
|
250 x 16
|
32.2
|
6.0
|
Grey
|
250 x 20
|
40.2
|
6.0
|
Green
|
250 x 25
|
50.3
|
6.0
|
Purple
|
300 x 6
|
14.5
|
6.0
|
White
|
300 x 8
|
19.3
|
6.0
|
Red
|
300 x 10
|
24.1
|
6.0
|
Yellow
|
300 x 12
|
29.0
|
6.0
|
Pink
|
300 x 16
|
38.6
|
6.0
|
Grey
|
300 x 20
|
48.3
|
6.0
|
Green
|
300 x 25
|
60.4
|
6.0
|
Purple
|
SS hex bar Size in Inches
|
SS hex bar Wt per Ft
|
SS hex bar Wt per 12′
|
---|---|---|
3/16″
|
0.104
|
1.248
|
1/4″
|
0.180
|
2.160
|
5/16″
|
0.290
|
3.480
|
3/8″
|
0.420
|
4.920
|
7/16″
|
0.560
|
6.72
|
1/2″
|
0.740
|
8.880
|
9/16″
|
0.930
|
11.16
|
5/8″
|
1.150
|
13.80
|
11/16″
|
1.390
|
16.68
|
3/4″
|
1.660
|
19.92
|
13/16″
|
1.950
|
23.40
|
7/8″
|
2.300
|
27.60
|
15/16″
|
2.600
|
31.20
|
1″
|
2.90
|
34.80
|
1-1/16″
|
3.30
|
39.60
|
1-1/8″
|
3.700
|
44.40
|
1-1/4″
|
4.600
|
55.20
|
1-5/16″
|
5.100
|
61.20
|
1-3/8″
|
5.600
|
67.20
|
1-7/16″
|
6.100
|
73.20
|
1-1/2″
|
6.600
|
79.20
|
1-5/8″
|
7.800
|
93.60
|
1-3/4″
|
9.030
|
108.36
|
1-7/8″
|
10.400
|
124.80
|
2″
|
11.80
|
141.60
|
2-1/4″
|
14.920
|
179.04
|
2-3/8″
|
16.920
|
203.04
|
2-1/2″
|
18.42
|
221.04
|
3″
|
26.53
|
318.36
|
SS 420 Square bar – metric sizes and weights
|
|||
---|---|---|---|
Square bar Size
|
KG’s per Metre
|
Standard Length (metres)
|
Colour Code
|
10 x 10
|
0.81
|
6.0
|
Yellow
|
12 x 12
|
1.16
|
6.0
|
Pink
|
16 x 16
|
2.06
|
6.0
|
Grey
|
20 x 20
|
3.22
|
6.0
|
Green
|
25 x 25
|
5.03
|
6.0
|
Purple
|
32 x 32
|
8.24
|
6.0
|
Orange
|
40 x 40
|
12.8
|
6.0
|
Yellow
|
50 x 50
|
20.12
|
6.0
|
Green
|
Size mm | kg/m | Size mm | kg/m |
20 x 20 x 2.0 | 1.12 | 20 x 20 x 2.5 | 1.35 |
25 x 25 x 1.5 | 1.06 | 25 x 25 x 2.0 | 1.43 |
25 X 25 X 2.5 | 1.74 | 25 X 25 X 3.0 | 2.04 |
30 X 30 X 2.0 | 1.68 | 30 X 30 X 2.5 | 2.14 |
30 X 30 X 3.0 | 2.51 | 40 x 40 x 1.5 | 1.81 |
40 x 40 x 2.0 | 2.31 | 40 x 40 x 2.5 | 2.92 |
40 x 40 x 3.0 | 3.45 | 40 x 40 x 4.0 | 4.46 |
40 x 40 x 5.0 | 5.40 | 50 x 50 x 1.5 | 2.28 |
50 x 50 x 2.0 | 2.93 | 50 x 50 x 2.5 | 3.71 |
50 x 50 x 3.0 | 4.39 | 50 x 50 x 4.0 | 5.72 |
50 x 50 x 5.0 | 6.97 | 60 x 60 x 3.0 | 5.34 |
60 x 60 x 4.0 | 6.97 | 60 x 60 x 5.0 | 8.54 |
60 x 60 x 6.0 | 9.45 | 70 x 70 x 3.0 | 6.28 |
70 x 70 x 3.6 | 7.46 | 70 x 70 x 5.0 | 10.11 |
70 x 70 x 6.3 | 12.50 | 70 x 70 x 8 | 15.30 |
75 x 75 x 3.0 | 7.07 | 80 x 80 x 3.0 | 7.22 |
80 x 80 x 3.6 | 8.59 | 80 x 80 x 5.0 | 11.70 |
80 x 80 x 6.0 | 13.90 | 90 x 90 x 3.0 | 8.01 |
90 x 90 x 3.6 | 9.72 | 90 x 90 x 5.0 | 13.30 |
90 x 90 x 6.0 | 15.76 | 90 x 90 x 8.0 | 20.40 |
100 x 100 x 3.0 | 8.96 | 100 x 100 x 4.0 | 12.00 |
100 x 100 x 5.0 | 14.80 | 100 x 100 x 5.0 | 14.80 |
100 x 100 x 6.0 | 16.19 | 100 x 100 x 8.0 | 22.90 |
100 x 100 x 10 | 27.90 | 120 x 120 x 5 | 18.00 |
120 x 120 x 6.0 | 21.30 | 120 X 120 X 6.3 | 22.30 |
120 x 120 x 8.0 | 27.90 | 120 x 120 x 10 | 34.20 |
120 X 120 X 12 | 35.8 | 120 X 120 X 12.5 | 41.60 |
140 X 140 X 5.0 | 21.10 | 140 X 140 X 6.3 | 26.30 |
140 X 140 X 8 | 32.90 | 140 X 140 X 10 | 40.40 |
140 X 140 X 12.5 | 49.50 | 150 X 150 X 5.0 | 22.70 |
150 X 150 X 6.3 | 28.30 | 150 X 150 X 8.0 | 35.40 |
150 X 150 X 10 | 43.60 | 150 X 150 X 12.5 | 53.40 |
150 X 150 X 16 | 66.40 | 150 X 150 X 16 | 66.40 |
180 X 180 X 5 | 27.40 | 180 X 180 X 6.3 | 34.20 |
180 X 180 X 8 | 43.00 | 180 X 180 X 10 | 53.00 |
180 X 180 X 12.5 | 65.20 | 180 X 180 X 16 | 81.40 |
200 X 200 X 5 | 30.50 | 200 X 200 X 6 | 35.8 |
200 x 200 x 6.3 | 38.2 | 200 x 200 x 8 | 48.00 |
200 x 200 x 10 | 59.30 | 200 x 200 x 12.5 | 73.00 |
200 x 200 x 16 | 91.50 | 250 x 250 x 6.3 | 48.10 |
250 x 250 x 8 | 60.50 | 250 x 250 x 10 | 75.00 |
250 x 250 x 12.5 | 92.60 | 250 x 250 x 16 | 117.00 |
300 x 300 x 6.3 | 57.90 | 300 x 300 x 8 | 73.10 |
300 x 300 x 10 | 57.90 | 300 x 300 x 8 | 90.70 |
300 x 300 x 12.5 | 112.00 | 300 x 300 x 16 | 142.00 |
350 x 350 x 8 | 85.70 | 350 x 350 x 10 | 106.00 |
350 x 350 x 12.5 | 132.00 | 350 x 350 x 16 | 167.00 |
400 x 400 x 10 | 122.00 | 400 x 400 x 12 | 141.00 |
400 x 400 x 12.5mm | 152.00 | 400 x 400 x 16 | 192 |
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