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Stainless Steels - Specifications
 
Stainless steel is essentially a low carbon steel which contains chromium at 10% or more by weight. It is this addition of chromium that gives the steel its unique stainless, corrosion resisting properties. The corrosion resistance and other useful properties of the steel are enhanced by increased chromium content and the addition of other elements such as molybdenum, nickel and nitrogen.

Grades – Chemical Composition and Equivalent Standards

AISI ASTM
EN DIN
C % Max
Mn % Max
Si % Max
S % Max
P % Max
Cr % Max
Ni % Max
Mo % Max
Others %
201
-
0.15
5.5-7.5
1.00
0.030
0.060
16.00-18.00
3.50-5.50
-
-
202 - 0.15 7.5-10 1.00 0.030 0.060 17.00-19.00 4.00-6.00 - -
302 1.4310 0.15 2.00 1.00 0.030 0.045 17.00-1900 8.00-10.00 - -
302HQ 1.4567 0.03 2.00 1.00 0.030 0.045 17.00-19.00 9.00-10.00 - Cu : 3.00-4.00
303 1.4305 0.15 2.00 1.00 0.15 Min 0.20 17.00-1900 8.00-10.00 - Cu : 1% max
303EHS - 0.15 2.00 1.00 0.30-0.33 0.20 17.00-19.00 8.00-10.00 - Cu : 1% max
304 1.4301 0.08 2.00 1.00 0.030 0.045 18.00-20.00 8.00-11.00 - -
304HC - 0.05 2.00 1.00 0.030 0.045 18.00-20.00 8.50-9.50 - Cu : 2.00-2.50
304L 1.4306 0.03 2.00 1.00 0.030 0.045 18.00-20.00 8.00-12.00 - -
308LER 1.4331 0.02 1.5-2.0 0.50 0.020 0.025 19.00-21.00 9.50-11.00 - -
309LER 1.4332 0.03 1.5-2.0 0.50 0.015 0.020 23.00-25.00 12.00-14.00 - -
310 1.4841 0.25 2.00 1.50 0.030 0.045 24.00-26.00 19.00-22.00 - -
310S 1.4842 0.08 2.00 1.50 0.030 0.045 24.00-26.00 19.00-22.00 - -
316 1.4401 0.08 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 -
316L 1.4404 0.03 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 -
316LER 1.4430 0.02 1.5-2.0 0.50 0.020 0.020 18.00-20..00 12.00-14.00 2.00-2.75 -
316Ti 1.4571 0.08 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 Ti : Min (5xC%)
317LN 1.4438 0.03 2.00 1.00 0.030 0.045 18.00-20.00 11.00-15.00 3.00-4.00 N : 0.10-0.22
321 1.4541 0.08 2.00 1.00 0.030 0.045 17.00-19.00 9.00-12.00 - Ti : Min (5xC%)
410 1.4006 0.15 1.00 1.00 0.030 0.040 11.50-13.50 - - -
416 1.4005 0.15 1.25 1.00 0.15 Min 0.060 12.00-14.00 - - -
416XM - 0.15 1.25 1.00 030-0.33 0.060 12.00-14.00 - - -
420 1.4021 0.15 Min 1.00 1.00 0.030 0.040 12.00-14.00 - - -
430 1.4016 0.12 1.00 1.00 0.030 0.040 16.00-18.00 - - -
430L - 0.03 1.00 1.00 0.030 0.040 16.00-18.00 - - -
430F 1.4104 0.12 1.25 1.00 0.15 Min 0.060 16.00-18.00 - - -
431 1.4057 0.20 1.00 1.00 0.030 0.040 15.00-17.00 1.25-2.50 - -


Benefits of Stainless Steel

• Corrosion Resistance • Fire And Heat Resistance
• Hygiene • Aesthetic Appearance
• Strength-To-Weight Advantage • Impact Resistance
• Lower Total Life Cycle Cost • 100%Recyclable
 

Theoritic Weight of Stainless Steel Round Bars

Size (mm) Weight kgs/ meter Size (mm) Weight kgs/ meter
2 0.025 16 1.595
3 0.056 17 1.801
4 0.100 18 2.019
5 0.156 19 2.250
6 0.224 20 2.493
7 0.305 21 2.748
8 0.399 22 3.016
9 0.505 23 3.297
10 0.623 24 3.590
11 0.754 25 3.895
12 0.897 26 4.213
13 1.053 28 4.886
14 1.221 30 5.609
15 1.402 32 6.382
34 7.204 85 45.026
35 7.634 90 50.479
36 8.077 95 56.244
38 8.999 100 62.320
40 9.971 105 68.708
45 12.620 110 75.407
50 15.580 115 82.418
55 18.852 120 89.741
58 20.964 125 97.375
60 22.435 130 105.321
65 26.330 135 113.578
70 30.537 140 122.147
75 35.055 145 131.028
80 39.885 150 140.220


 
Conversion of Inch to millimeter and their corresponding weight
 
Inch
Inch (Dec)
Size (mm)
Weight kgs/ meter
1/8"
0.125
3.175
0.063
3/16"
0.188
4.763
0.141
1/4"
0.250
6.350
0.251
5/16"
0.313
7.938
0.393
3/8"
0.375
9.525
0.565
7/16"
0.438
11.113
0.770
1/2"
0.500
12.700
1.005
5/8"
0.625
15.875
1.571
3/4"
0.750
19.050
2.262
7/8"
0.875
22.225
3.078
1"
1.000
25.400
4.021
1-1/8"
1.125
28.575
5.089
1-3/16"    1.188
30.163
5.670
3-3/16"    3.188
1-1/4"
1.250
31.750
6.282
1-5/16"    1.313
33.338
6.926
3-5/16"    3.313
1-3/8"
1.375
34.925
7.602
1-7/16"    1.438
36.513
8.308
3-7/16"    3.438
1-1/2"
1.500
38.100
9.046
1-5/8"
1.625
41.275
10.6171
1-3/4"
1.750
44.450
12.313
1-7/8"
1.875
47.625
14.135
2"
2.000
50.800
16.083
2-1/8"
2.125
53.975
18.156
2-3/16"    2.188
55.563
19.239
4-3/16"    4.188
2-1/4"
2.250
57.150
20.354
2-5/16"    2.313
58.738
21.501
4-5/16"    4.313
2-3/8"
2.375
60.325
22.679
2-7/16"    2.438
61.913
23.888
4-7/16"    4.438
2-1/2"
2.500
63.500
25.129
2-5/8"
2.625
66.675
27.705
2-3/4"
2.750
69.850
30.406
2-7/8"
2.875
73.025
33.233
3"
3.000
76.200
36.186
3-1/8"
3.125
79.375
39.264
80.963
40.850
5-3/16"    5.188
131.763 
3-1/4"
3.250
82.550
42.468
84.138
44.117
5-5/16"    5.313
134.938 
3-3/8"
3.375
85.725
45.798
87.313
47.509
5-7/16"    5.438
138.113 
3-1/2"
3.500
88.900
49.253
3-5/8"
3.625
92.075
52.834
3-3/4"
3.750
95.250
56.540
3-7/8"
3.875
98.425
60.372
4"
4.000
101.600  
64.330
4-1/8"
4.125
104.775
 68.414
106.363
70.503
-
-
4-1/4"
4.250
107.950 
 72.623
109.538 
 74.774
-
-
4-3/8"
4.375
111.125 
 76.958
112.713 
 79.172
-
-
4-1/2"
4.500
114.300 
 81.418
4-5/8"
4.625
117.475 
 86.004
4-3/4"
4.750
120.650 
 90.716
4-7/8"
4.875
123.825 
 95.553
5"
5.000
127.000 
 100.516
5-1/8"
5.125
130.175 
 105.605
 108.196
-
-
-
5-1/4"
5.250
133.350 
 110.819
 113.473
-
-
-
5-3/8"
5.375
136.525 
 116.159
 118.876
-
-
-
5-1/2"
5.500
139.700 
 121.624
5-5/8"
5.625
142.875 
 127.215
5-3/4"
5.750
146.050 
 132.932
5-7/8"
5.875
149.225 
 138.775
6"
6.000
152.400 
 144.743
 
Theoritic Weight of Stainless Steel Hex & Square Bars
 
Size (mm) Weight (Hex) kg/ meter Weight (Square) kg/ meter

5

0.172

 0.197

6

0.248

 0.283

8

0.441

 0.504

10

0.689

 0.787

12

0.992

1.134

14

1.350

1.543

15

1.550

1.771

16

1.763

 2.015

17

1.991

2.275

18

2.232

2.551

19

2.487

2.842

20

 2.755

3.149

21

3.038

3.472

22

3.334

3.810

24

 3.967

4.534

25

 4.305

4.920

27

 5.021

5.739

28

 5.400

6.172

30

 6.199

 7.085

32

 7.053

 8.061

34

7.963

 9.100

35

8.438

9.643

36

8.927

 10.202

38

9.946

11.367

40

11.021

12.595

42

12.150

13.886

45

13.948

 15.941

50

17.220

19.680
 
 
Tolerance Chart for SS Round Bars as per ISO

Size Range (mm) h8 h9 h10 h11 h12 h13 K12/K13
Upto 6 -0.018 -0.030 -0.048 -0.075 -0.120 -0.180 -
Over 6 upto 10 -0.022 -0.036 -0.058 -0.090 -0.150 -0.220 -
Over 10 upto 18 -0.027 -0.043 -0.070 -0.110 -0.180 -0.270 -
Over 18 upto 30 -0.033 -0.052 -0.084 -0.130 -0.210 -0.330 +0.10/+0.15
Over 30 upto 50 -0.039 -0.062 -0.100 -0.160 -0.250 -0.390 +0.15/+0.20
Over 50 upto 80 -0.046 -0.074 -0.120 -0.190 -0.300 -0.460 +0.20/+0.25
Over 80 upto 120 -0.054 -0.087 -0.140 -0.220 -0.350 -0.540 +0.25/+0.30
 
Tolerance Chart For SS Round Bars as per ASTM A 484
 
Cold Finished Round Bars

Size Range in Inch Tolerance
1/16” to less than 5/16” +/- 0.001”
5/16” to less than 1/2” +/- 0.0015”
1/2” to less than 1” +/- 0.002”
1” to less than 1-1/2” +/- 0.0025”
1-1/2” to less than 4” +/- 0.003”
 
Cold Finished Hexagon & Square Bars

Size Range in Inch
Tolerance
1/16” to less than 5/16”
+/- 0.002”
5/16” to less than 1/2”
+/- 0.003”
1/2” to less than 1”
+/- 0.004”
1” to less than 2”
+/- 0.006”
2” to less than 3”
+/- 0.008”
3" and over
+/- 0.010”
Hardness Conversions Chart

Brinnel Hardness HB
Vickers Hardness HV
Rockwell Hardness HRC
Rockwell Hardness HRB
Tensile Strength ksi
321
339
34
108
158
311
328
33
108
154
302
319
32
107
150
293
309
31
106
146
285
301
30
105
142
277
292
29
104
138
269
284
28
104
135
262
276
27
103
131
255
269
25
102
125
248
261
24
101
121
241
253
23
100
119
235
247
22
99
117
229
241
21
98
113
223
234
-
97
110
217
228
-
96
107
212
222
-
95
102
207
218
-
95
100
202
212
-
94
98
197
207
-
93
96
192
202
-
92
94
187
196
-
91
90
183
192
-
90
89
179
188
-
89
87
174
182
-
88
84
170
178
-
87
82
166
175
-
86
80
163
171
-
85
78
159
167
-
84
77
156
163
-
83
76
153
160
-
82
75
149
156
-
81
74
146
153
-
80
72
143
150
-
79
71
140
147
-
78
70
137
143
-
76
67
134
140
-
75
66
131
137
-
74
65
128
134
-
73
64
126
132
-
72
63
124
129
-
71
62
121
127
-
70
60
118
124
-
69
59
116
122
-
68
58
114
119
-
67
57
111
117
-
66
56
 
 
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