Alloy 28 Round bars are made from a highly durable and corrosion-resistant alloy commonly referred to as Carpenter's Alloy 28. This austenitic stainless steel is particularly well-suited for use in applications that are exposed to sulfuric acid, making it a popular choice for use in chemical processing plants and refineries. The copper content in the alloy acts as a protective layer against sulfuric acid, while iron is the most commonly used metal in the alloy, making up almost 40% of its composition.

Additional primary alloying metals in Alloy 28 Round bars include nickel, chromium, copper, and molybdenum, which provide superior resistance to pitting and chloride resistance compared to other types of stainless steel.

Alloy 28 Round Bar
Table of Content

The inclusion of niobium in ASTM B709 28 Alloy Bars plays a vital role in stabilizing the alloy and making it a cost-effective choice for various industries. Compared to other high nickel and chromium alloys, Alloy 28 offers a reasonable alternative that does not compromise quality. In addition to its exceptional resistance to sulfuric acid environments, Carpenter's ASTM B473 Alloy 28 Bars also provide decent resistance in nitric and phosphoric acid conditions.

Zeon Fasteners LLP is a renowned supplier of Alloy 28 round bars and a sister company of Shanti Steel Syndicate. With a stocking capacity of 500 tonnes, we cater to the ever-increasing needs of various industries. Our establishment specializes in supplying exotic alloys and meeting the unique requirements of different applications.

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Alloy 28 Round Bars

Specification For Alloy 28Cb-3® Bolts Round Bars

Standard: ASTM B473 / ASME SA276
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
Round Bars : Outside Diameter in the range of 4mm to 500mm
Bright Bars : Outside Diameter in the range of 4mm to 100mm
Hex Bars: 18mm – 57mm (11/16″ to 2-3/4″)
Square Bars : 18mm – 47mm (11/16″ to 1-3/4″)
Flats: 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available
Length: 1 to 6 Meters, Custom Cut Lengths
Form: Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Finish: Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Equivalent Of Alloy 28 Round Bars

STANDARD WERKSTOFF NR. UNS EN
Alloy 28 1.4563 N08028 X1NiCrMoCuN31-27-4

Alloy 28 Round Bars Chemical Composition

Grade C Si Mn P Cr Mo Ni N
Alloy 28 0.02 max 0.70 max 2.00 max 0.03 max 26.00 – 28.00 30.00 – 32.00 19.00 – 21.00 0.11 max

Alloy 28 Round Bars Mechanical Properties

Element Hardness Yield Strength (0.2%Offset) Tensile Strength Elongation
Alloy 28 230 220 500 - 750 30 %

Alloy 28 Square Bar Surface Finish

CD
Cold drawn
P
Polished
BD
Bright drawn
SRE
Slit rolled edge
CG
Centreless ground
HF
Hot finished
CF
Cold finished
HRAP
Hot rolled annealed and pickled
P&T
Peeled and turned
RT
Rough turned/peeled
ST
Smooth turned
PR
Peeled and reeled

Alloy 28 Flat Bar Sizes

flat bar sizes in mm
Flat Bar Size (inch)
Flat Bar Thickness (mm)
Flat Bar Thickness (in Inches)
22
7/8
17 & 18
2/3 - 5/7
25
1
5 to 20
3/16 - 4/5
30
1-3/16
5 to 20
3/16 - 4/5
32
1-1/4
6 to 20
1/4 - 4/5
35
1-3/8
5 to 20
3/16 - 3/16
40
1-4/7
5 to 25
3/16 - 1
45
1-7/9
5 to 25
3/16 - 1
47
1-6/7
17,25 & 32
2/3, 1 & 1-1/4
50
2
5 to 32
3/16 - 1-1/4
55
2-1/16
5 to 25
3/16 - 1
57
2-1/4
32
1-1/4
60
2-3/8
5 to 35
3/16 - 1-3/8
63
2-1/2
10 to 30
3/8 - 1-3/16
65
2-5/9
10 to 30 & 35
3/8 - 1-3/16, & 1-3/8
70
2-3/4
6 to 25 & 40
1/4 - 1, & 1-4/7
75
3
8 to 25
5/16 - 1
80
3-1/8
8 to 20
5/16 - 4/5
90
3-1/2
8 to 20
5/16- 4/5
100
4
8, 10, 12
5/16, 3/8, 1/2

Alloy 28 Round Bar Sizes

Type
SIZES (mm)
SIZES (Inches)
ISO Tolerance
Cold Drawn and Polish
3.00 - 75.00
1/8 - 3.00
h8-h9-h10-h11
Cold Drawn and Ground
10.00 - 75.00
5/6 - 2.50
h8-h9-h10-h11
Peeled and Polished
40.00 - 150.00
1.50 - 6.00
h11, h11-DIN 1013
Peeled and Ground
20.00 - 50.00
3/4 - 2.00
h9-h10-h11

Standard lengths of 2000 mm up to 6000 mm. Cut to size on request (tolerance +2/-0 mm).
5.0
45.0
6.0
50.0
7.0
55.0
8.0
60.0
9.0
65.0
10.0
70.0
12.0
75.0
16.0
80.0
20.0
90.0
25.0
100.0
30.0
130.0
35.0
160.0
40.0
200.0

Alloy 28 Hollow Bar Sizes

Size
Chucked true to OD
Chucked true to ID
OD,
mm
ID,
mm
Max. OD,
mm
Min. ID,
mm
Max. OD,
in.
Min. ID,
in.
Max. OD,
mm
Min. ID,
mm
Max. OD,
in.
Min. ID,
in.
32
20
31
21.9
1.220
0.862
30
21
1.185
0.827
32
16
31
18
1.220
0.709
30
17
1.181
0.669
36
25
35
26.9
1.378
1.059
34.1
26
1.343
1.024
36
20
35
22
1.378
0.866
34
21
1.339
0.827
36
16
35
18.1
1.378
0.713
33.9
17
1.335
0.669
40
28
39
29.9
1.535
1.177
38.1
29
1.500
1.142
40
25
39
27
1.535
1.063
38
26
1.496
1.024
40
20
39
22.1
1.535
0.870
37.9
21
1.492
0.827
45
32
44
33.9
1.732
1.335
43.1
33
1.697
1.299
45
28
44
30
1.732
1.181
43
29
1.693
1.142
45
20
44
22.2
1.732
0.874
42.8
21
1.685
0.827
50
36
49
38
1.929
1.496
48
37
1.890
1.457
50
32
49
34.1
1.929
1.343
47.9
33
1.886
1.299
50
25
49
27.2
1.929
1.071
47.8
26
1.882
1.024
56
40
55
42
2.165
1.654
54
41
2.126
1.614
56
36
55
38.1
2.165
1.500
53.9
37
2.122
1.457
56
28
55
30.3
2.165
1.193
53.7
29
2.114
1.142
63
50
62
51.9
2.441
2.043
61.1
51
2.406
2.008
63
45
62
47
2.441
1.850
61
46
2.402
1.811
63
40
62
42.2
2.441
1.661
60.8
41
2.394
1.614
63
36
62
38.3
2.441
1.508
60.7
37
2.390
1.457
63
32
62
34.4
2.441
1.354
60.6
33
2.386
1.299
71
56
69.9
58
2.752
2.283
68.9
57
2.713
2.244
71
45
69.9
47.3
2.752
1.862
68.6
46
2.701
1.811
71
40
69.9
42.4
2.752
1.669
68.5
41
2.697
1.614
71
36
69.9
38.5
2.752
1.516
68.4
37
2.693
1.457
75
60
73.8
62
2.906
2.441
72.8
61
2.866
2.402
75
50
73.8
52.2
2.906
2.055
72.6
51
2.858
2.008
75
40
73.8
42.5
2.906
1.673
72.3
41
2.846
1.614
80
63
78.8
65
3.102
2.559
77.8
64
3.063
2.520
80
50
78.8
52.4
3.102
2.053
77.4
51
3.047
2.008
80
45
78.8
47.5
3.102
1.870
77.3
46
3.043
1.811
80
40
78.8
42.6
3.102
1.677
77.2
41
3.039
1.614
85
67
83.7
69.1
3.295
2.720
82.6
68
3.252
2.677
85
55
83.7
57.4
3.295
2.260
82.3
56.0
3.240
2.205
85
45
83.7
47.6
3.295
1.874
82.1
46.0
3.232
1.811
90
71
88.6
73.1
3.488
2.878
87.6
72.1
3.449
2.839
90
63
88.6
65.3
3.488
2.571
87.3
64.0
3.437
2.520
90
56
88.6
58.5
3.488
2.303
87.1
57.0
3.429
2.244
90
50
88.6
52.6
3.488
2.071
87.0
51.0
3.425
2.008
95
75
93.5
77.3
3.681
3.041
92.4
76.2
3.641
2.997
95
67
93.5
69.3
3.681
2.728
92.2
68.0
3.630
2.677
95
50
93.5
52.7
3.681
2.075
91.8
51.0
3.614
2.008
100
80
98.5
82.3
3.878
3.240
97.4
81.2
3.835
3.197
100
71
98.5
73.4
3.878
2.890
97.2
72.1
3.827
2.839
100
63
98.5
65.5
3.878
2.579
97.0
64.0
3.819
2.520
100
56
98.5
58.7
3.878
2.311
96.8
57.0
3.811
2.244
106
80
104.4
82.5
4.110
3.248
103.1
81.2
4.059
3.197
106
71
104.4
73.5
4.110
2.894
103.0
72.1
4.055
2.839
106
63
104.4
65.7
4.110
2.587
102.7
64.0
4.043
2.520
106
56
104.4
58.9
4.110
2.319
102.5
57.0
4.035
2.244
112
90
110.3
92.5
4.343
3.642
109.2
91.4
4.299
3.598
112
80
110.3
82.6
4.343
3.252
108.9
81.2
4.287
3.197
112
71
110.3
73.7
4.343
2.902
108.7
72.1
4.280
2.839
112
63
110.3
65.8
4.343
2.591
108.5
64.0
4.272
2.520
118
90
116.2
92.7
4.575
3.650
114.9
91.4
4.524
3.598
118
80
116.2
82.8
4.575
3.260
114.6
81.2
4.512
3.197
118
71
116.2
73.8
4.575
2.906
114.5
72.1
4.508
2.839
118
63
116.2
66.0
4.575
2.598
114.2
64.0
4.496
2.520
125
100
123.1
102.7
4.846
4.043
121.9
101.5
4.799
3.996
125
90
123.1
92.8
4.846
3.654
121.7
91.4
4.791
3.598
125
80
123.1
82.9
4.846
3.264
121.4
81.2
4.780
3.197
125
71
123.1
74.0
4.846
2.913
121.3
72.1
4.772
2.839
132
106
130.0
108.8
5.118
4.283
128.8
107.6
5.071
4.236
132
90
130.0
93.0
5.118
3.661
128.4
91.4
5.055
3.598
132
80
130.0
83.1
5.118
3.272
128.1
81.2
5.043
3.197
132
71
130.0
74.2
5.118
2.921
121.2
72.1
5.035
2.839
140
112
137.9
115
5.429
4.528
136.6
113.7
5.378
4.476
140
100
137.9
103.1
5.429
4.059
136.3
101.5
5.366
3.996
140
90
137.9
93.2
5.429
3.669
136.1
91.4
5.358
3.598
140
80
137.9
83.3
5.429
3.280
135.8
81.2
5.346
3.197
150
125
147.7
128.1
5.815
5.043
146.5
126.9
5.768
4.996
150
106
147.7
109.3
5.815
4.303
146
107.6
5.748
4.236
150
95
147.7
98.4
5.815
3.874
145.7
96.4
5.736
3.795
150
80
147.7
83.6
5.815
3.291
145.3
81.2
5.720
3.197
160
132
157.6
135.3
6.205
5.327
156.3
134
6.154
5.276
160
122
157.6
125.4
6.205
4.937
156
123.8
6.142
4.874
160
112
157.6
115.5
6.205
4.547
155.8
113.7
6.134
4.476
160
90
157.6
94.0
6.205
3.701
155.2
91.4
6.110
3.598
170
140
167.4
143.5
6.591
5.650
166
142.1
6.535
5.594
170
130
167.4
133.6
6.591
5.260
165.8
132
6.528
5.197
170
128
167.4
131.6
6.591
5.181
165.7
130
6.524
5.118
170
118
167.4
121.7
6.591
4.791
165.5
119.8
6.516
4.717
170
106
167.4
109.8
6.591
4.323
165.2
107.6
6.504
4.236
170
100
167.4
103.9
6.591
4.091
165
101.5
6.496
3.996
180
150
177.3
153.6
6.980
6.047
176
152.3
6.929
5.996
180
140
177.3
143.7
6.980
5.657
175.7
142.1
6.917
5.594
180
125
177.3
128.9
6.980
5.075
175.3
126.9
6.902
4.996
180
100
177.3
104.1
6.980
4.098
174.7
101.5
6.878
3.996
190
160
187.1
163.8
7.366
6.449
185.7
162.4
7.311
6.394
190
150
187.1
153.9
7.366
6.059
185.5
152.3
7.303
5.996
190
132
187.1
136
7.366
5.354
185.1
134
7.287
5.276
200
170
197.0
173.9
7.756
6.846
195.6
172.6
7.701
6.795
200
160
197.0
164
7.756
6.457
195.4
162.4
7.693
6.394
200
150
197.0
154.1
7.756
6.067
195.2
152.3
7.685
5.996
200
140
197.0
144.2
7.756
5.677
194.9
142.1
7.673
5.594
212
170
208.8
174.2
8.220
6.858
207.2
172.6
8.157
6.795
212
150
208.8
154.4
8.220
6.079
206.6
152.3
8.133
5.997
212
130
208.8
134.6
8.220
5.299
206.2
132
8.118
5.197
224
180
220.6
184.4
8.685
7.260
218.9
182.7
8.618
7.193
224
140
220.6
144.8
8.685
5.701
217.9
142.1
8.579
5.594
236
190
232.4
194.6
9.150
7.661
230.7
192.9
9.083
7.594
236
150
232.4
155.0
9.150
6.102
229.7
152.3
9.043
5.996
250
200
246.2
204.9
9.693
8.067
244.3
203.0
9.618
7.992
275
200
268.9
205.4
10.587
8.087
266.5
203.0
10.492
7.992

Alloy 28 Square Bar Sizes

Size (mm)
Weight per meter (Kg)
Size (mm)
Weight per meter (Kg)
12 x 12
1.14
30x30
7.11
16 x 16
2.02
40 x 40
12.60
20 x 20
3.16
50 x 50
19.80
25 x 25
4.94

Alloy 28 Hex Bar Sizes

Size (mm)
Weight (kg/m)
Size (mm)
Weight (kg/m)
Size (mm)
Weight (kg/m)
7 x 7
0.337
19 x 19
2.479
38 x 38
9.916
8 x 8
0.44
20 x 20
2.747
40 x 40
10.988
9 x 9
0.556
21 x 21
3.029
42 x 42
12.114
10 x 10
0.687
22 x 22
3.324
45 x 45
13.906
11 x 11
0.831
24 x 24
3.956
48 x 48
15.822
12 x 12
0.989
25 x 25
4.292
50 x 50
17.168
13 x 13
1.161
26 x 26
4.642
53 x 53
19.29
14 x 14
1.346
28 x 28
5.384
55 x 55
20.774
15 x 15
1.545
30 x 30
6.181
60 x 60
24.723
16 x 16
1.758
32 x 32
7.032
65 x 65
29.015
17 x 17
1.985
34 x 34
7.939
70 x 70
33.65
18 x 18
2.225
36 x 36
8.9
75 x 75
38.629

Various Types of Alloy 28 Round Bars

Alloy 28 Hex Bars

Alloy 28 Hex Bars

  • Sanicro® 28 Hex Bars
  • Sanicro 28 Hex Bars
  • Alloy N08028 Hex Rods
  • Alloy 1.4563 Hexagon Bar
  • Alloy 28 Hex Bar
  • Alloy 28 Hexagon Bars
  • ASTM B473 Alloy 28 Hex Bars
  • UNS N08028 Hex Bars
  • Nickel Alloy 28 Hex Bars
Alloy 28 Bright Bars

Alloy 28 Bright Bars

  • Alloy 28 Bright Bars
  • Sanicro 28 Bright Bars
  • UNS N08028 Bright Bars
  • Sanicro® 28 Bright Bars
  • Alloy N08028 Bright Rods
  • Alloy 28 Bright Bar
  • Nickel Alloy 28 Bright Bars
  • Alloy 1.4563 Bright Bar
  • ASTM B473 Alloy 28 Bright Bars
Alloy 28 Polished Bars

Alloy 28 Polished Bars

  • Alloy 28 Polish Bars
  • Sanicro 28 Polished Bars
  • Alloy N08028 Polished Rods
  • UNS N08028 Polished Bars
  • Nickel Alloy 28 Polished Bars
  • ASTM B473 Alloy 28 Polished Bars
  • Sanicro® 28 Polished Bar
  • Alloy 1.4563 Polish Bar
Alloy 28 Square Bars

Alloy 28 Square Bars

  • Sanicro® 28 Square Bars
  • Nickel Alloy 28 Square Bars
  • Alloy 1.4563 Square Bar
  • Alloy N08028 Square Rods
  • Alloy 28 Square Bars
  • ASTM B473 Alloy 28 Square Bars
  • Alloy 28 Square Bar
  • UNS N08028 Square Bars
  • Sanicro 28 Square Bars
Alloy 28 Rectangle Bars

Alloy 28 Rectangle Bars

  • Alloy 1.4563 Rectangular Bar
  • Sanicro® 28 Rectangle Bars
  • ASTM B473 Alloy 28 Rectangle Bars
  • Nickel Alloy 28 Rectangle Bar
  • Alloy N08028 Rectangle Rods
  • Sanicro 28 Rectangle Bars
  • Alloy 28 Rectangular Bars
  • UNS N08028 Rectangle Bars
Alloy 28 Flat Bars

Alloy 28 Flat Bars

  • Nickel Alloy 28 Flat Bars
  • Alloy N08028 Flat Bars
  • UNS N08028 Flat Bars
  • Alloy 1.4563 Flat Bar
  • Sanicro 28 Flat Bar
  • Nickel Alloy Flat Bars
  • ASTM B473 Alloy 28 Flat Bars
  • Sanicro® 28 Flat Bars
  • ASME SB473 Alloy 28 Flat Bar

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  • Alloy 28 Metric Round Bars
  • Alloy 28 Half Round Bars
  • Austenitic Alloy 28 Round Bars
  • Alloy 28 Bland Black Bars
  • Alloy 28 Round Bar Size Chart
  • Alloy 28 Ground Steel Bar
  • Type of Alloy 28 Bars
  • Alloy 28 Cold Rolled Bars
  • Alloy 28 HR Round Bars
  • Sanicro® 28 Customized Bars
  • Alloy 28 Industrial Bars

Alloy 28 Round Bars Applications and Uses

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