Being an austenitic stainless steel class, the highly alloyed grade 6% moly or 254 SMO is one of the most corrosion resistant alloys available today. From their ability to withstand several corrosive media to their impressive properties, the 6 Moly 254 SMO hex bar is a versatile alloy. The main idea behind developing this idea was for a metal that was not only able to be used in marine engineering, but also to be able to resist aggressive chlorine containing mediums.
This is why, the introduction of A276 6mo UNS S31254 Rod sorts the issue, as the material exhibits excellent resistance to stress related corrosion cracking, or otherwise known as SCC. It is not uncommon to see conventional austenitic stainless steel alloys like grade 304 getting corroded by pitting in marine environments. Unlike grade 304, the SMO 254 Welding Rod has a very high resistance to pitting, which is indicated by its PREN or Pitting resistance equivalent number, which is valued at 42.5.
The mechanical strength of the SMO 254 Round Bar is also higher in comparison to several conventional austenitic stainless steel alloys. In fact, if compared to the 300 series stainless steel, the 254 SMO Round Bar has a mechanical strength that is almost 2 times more. This is a result of the added Chromium, Nickel, Molybdenum, and Nitrogen in its chemistry, which also makes the Alloy 254 flat bar a super austenitic stainless steel grade.
Dimensions | DIN, EN, ASTM, JIS, ASME, BS, AISI |
---|---|
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 |
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 |
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) |
Dimensions | Diameter / Height: |
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 |
Condition | Hardened & tempered, annealed |
Technique | Stainless Steel Cold Drawn, Hot Rolled, Forged Round Bar,Cold Rolled, Rod |
Processing | Bar cutting to 650mm |
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. |
Country | Product |
---|---|
South Korea, United Arab Emirates (UAE) | S31254 F44 1.4547 Smo 254 Stainless Steel Bar Seamless Round Bar |
Egypt, Mexico, UK, Spain | Smo 254 / 6moly / Alloy 254 / Uns S31254 / F44 Round Bar |
Philippines, Europe, Poland, Japan | 254 Smo Round Bar Round 20mm |
Bangladesh, Malaysia, Finland, USA | DIN 10MM 15MM ASTM A276 F44 UNS S31254 254 SMO nickel alloy round bar |
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 |
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 |
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 |
Size (mm) |
Weight per metre (Kg) |
Size (mm) |
Weight per metre (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 |
Metric | US Bar | ASTM/ Canadian | Japanese | ||||
---|---|---|---|---|---|---|---|
Bar Size | Diam. (mm) | Bar Size | Diam. (Inch) | Bar Size | Diam. (mm2) | Bar Size | Diam. (mm) |
5 | 5 | #2 | 0.250 | 10M | 100 | 6 | 6 |
5.5 | 5.5 | #3 | 0.375 | 15M | 200 | 10 | 10 |
6 | 6 | #4 | 0.500 | 20M | 300 | 13 | 13 |
7 | 7 | #5 | 0.625 | 25M | 500 | 16 | 16 |
8 | 8 | #6 | 0.750 | 30M | 700 | 19 | 19 |
9 | 9 | #7 | 0.875 | 35M | 1000 | 22 | 22 |
10 | 10 | #8 | 1.000 | 45M | 1500 | 25 | 25 |
11 | 11 | #9 | 1.125 | 55M | 2500 | 29 | 29 |
12 | 12 | #10 | 1.250 | 32 | 32 | ||
14 | 14 | #11 | 1.375 | 35 | 35 | ||
16 | 16 | #12 | 1.500 | 38 | 38 | ||
18 | 18 | #13 | 1.625 | 41 | 41 | ||
20 | 20 | #14 | 1.750 | 44 | 44 | ||
22 | 22 | #15 | 1.875 | 48 | 48 | ||
25 | 25 | #16 | 2.000 | 51 | 51 | ||
28 | 28 | #18 | 2.250 | 57 | 57 | ||
32 | 32 | ||||||
36 | 36 | ||||||
40 | 40 | ||||||
44 | 44 | ||||||
50 | 50 |
Grade | C | Mn | Si | Cu | S | P | Mo | Ni | Cr |
SMO 254 | 0.02 | 1 | 0.08 | 0.5-1.0 | 0.01 | 0.03 | 6.0-6.5 | 17.5-18.5 | 19.5-20.5 |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8 g/cm3 | 1320-1390 ℃ | 650 | 300 | 35 % |
STANDARD | WERKSTOFF NR. | UNS | SIS | BS | GOST | AFNOR | EN |
SMO 254 | 1.4547 | S31254 | 2378 | – | – | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 |
254 SMO Cold Rolled Bar |
UNS S31254 6mo Hex Bars |
6 Moly 254 SMO Flat Bar Rolled Edge |
SMO 254 Rod |
SMO 254 T-Bar |
254 SMO Rod |
Hot Rolled 254 SMO Rod |
6 Moly 254 SMO Hexagonal Rods |
SMO 254 Rounds |
UNS S31254 Rounds |
254 SMO Black Bar |
UNS S31254 6mo Black Bar |
6 Moly 254 SMO Rounds |
SMO 254 Polished Flat Bar |
UNS S31254 Flat Bar Rolled Edge |
254 SMO Half-Round Bar |
UNS S31254 6mo Half-Round Bar |
6 Moly 254 SMO Circular Bars |
254 SMO T-Bar |
UNS S31254 Precision Ground Bar |
254 SMO Precision Ground Bar |
UNS S31254 6mo Hex Bars |
6 Moly 254 SMO Precision Ground Bar |
SMO 254 Triangle bar |
UNS S31254 Triangle bar |
254 SMO Bright Bars |
UNS S31254 6mo Bright Bars |
Hot Rolled Stainless Steel 6 Moly 254 SMO bar |
6 Moly 254 SMO Billets |
SMO 254 Billets |