ASTM A554 Stainless Steel Square Tube
Stainless Steel Welded Mechanical Tubing, ASTM A554 Welded Mechanical Tube Supplier
ASTM A554 specification covers welded austenitic, ferritic, and austenitic-ferritic duplex stainless steel mechanical tubing intended for use in ornamental, structural, exhaust and other applications where appearance, mechanical properties, or corrosion resistance is needed. Welded mechanical tubing as-welded or cold-reduced mechanical tubing in sizes to 16 in. (406.4 mm) outside dimension, and in wall thicknesses 0.020 in. (0.51 mm) and over. ASTM A554 type 316 tubing is normally furnished in mill lengths 5 ft (1.5 m) and over. Definite cut lengths are furnished when specified, to the length tolerances. We have most reputed name as a ASTM A554 Stainless Steel Mechanical Tube supplier.Square and rectangular welded stainless tubing is sup-plied as cold worked unless otherwise specified. ASTM A554 tubing is commonly shipped without protective coating. If special protection is needed, details shall be specified in the order. ASTM A554 stainless steel rectangular tube yield strength corresponding to a permanent offset of 0.2 % of the gage length of the specimen or to a total extension of 0.5 % of the gage length under load shall be determined. ASTM A554 304 Tubes are made from flat-rolled steel by an automatic welding process, without any filler metal addition. Heat analysis is performed so that several grades of steel conform to the required chemical composition.
ASTM A554 Welded Tube Specifications
| Specifications | : | ASTM A554/ ASME SA554 | |
| s Grades | : | ASTM A554( MT304/304L, MT316/316L ),JIS G3446 ( SUS304TK, SUS316TK ), CNS 5802 ( 304TK, 316TK ), (YC1) | |
| Size | : | 6NB to 1200NB IN | |
| O.D. | : | 9.5mm ~ 139.7mm | |
| Wall Thickness | : | 0.6 ~ 3.05mm | |
| Schedule | : | SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. | |
| Welding Method | : | TIG or TIG + Plasma or Laser | |
| Finish | : | 2B MIll Finish , No.4 finish, BA Finish, 400 Grit Finish, 550 Grit Finish, 600 Grit Finish | |
| Length | : | Single Random, Double Random & Cut Length | |
| Types | : | Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Tubes |
ASTM A554 Equivalent
| GRADE | UNS NO | DIN/WERKSTOFF |
|---|---|---|
| ASTM A554 304 | S30400 | 1.4301 |
| ASTM A554 304H | S30409 | – |
| ASTM A554 304L | S30403 | 1.4306 |
| ASTM A554 310S | S31008 | 1.4845 |
| ASTM A554 316S | S31600 | 1.4436 |
| ASTM A554 316H | S31609 | – |
| ASTM A554 316 TI | S31635 | 1.4571 |
| ASTM A554 316L (2.5 MIN MOLY) | S31603 | 1.4435 |
| ASTM A554 316L | S31603 | 1.4404 |
| ASTM A554 317L | S31703 | 1.4438 |
| ASTM A554 321 | S32100 | 1.4541 |
| ASTM A554 321H | S32109 | – |
| ASTM A554 347 | S34700 | 1.4550 |
ASTM A554 Stainless Steel Ornamental Tubing size
|
OD Size
Inches |
Wall Thickness
|
OD
± Inches |
|
|
Under 1/2
|
0.020 to 0.049
|
0.004
|
|
|
1/2 to 1
|
0.020 to0.065
|
0.005
|
|
|
1/2 to 1
|
over 0.065 to 0.134
|
0.010
|
|
|
Over 1 to 1-1/2
|
0.025 to 0.065
|
0.008
|
|
|
Over 1 to 1-1/2
|
over 0.065 to 0.134
|
0.010
|
|
|
Over 1-1/2 to 2
|
0.025 to 0.049
|
0.010
|
|
|
Over 1-1/2 to 2
|
over 0.049 to 0.083
|
0.011
|
|
|
Over 1-1/2 to 2
|
over 0.083 to 0.149
|
0.012
|
|
|
Over 2 to 2-1/2
|
0.032 to 0.065
|
0.012
|
|
|
Over 2 to 2-1/2
|
over 0.065 to 0.109
|
0.013
|
|
|
Over 2 to 2-1/2
|
over 0.109 to 0.165
|
0.014
|
|
|
Over 2-1/2 to 3-1/2
|
0.032 to 0.165
|
0.014
|
|
|
Over 2-1/2 to 3-1/2
|
over 0.165
|
0.020
|
|
|
Over 3-1/2 to 5
|
0.035 to 0.165
|
0.020
|
|
|
Over 3-1/2 to 5
|
over 0.165
|
0.025
|
|
|
Over 5 to 7-1/2
|
0.049 to 0.250
|
0.025
|
|
|
Over 5 to 7-1/2
|
over 0.250
|
0.030
|
|
|
Over 7-1/2 to 16
|
all
|
0.00125 In/In of Circumference
|
|
ASTM A554 TWIST TOLERANCES
|
Largest Size, Inches
|
Twist In 3 ft., max, Inches
|
|
Under 1/2
|
0.050
|
|
1/2 to 1-1/2 , incl.
|
0.075
|
|
Over 1-1/2 to 2-1/2, incl.
|
0.095
|
|
Over 2-1/2 to 4, incl.
|
0.125
|
|
Over 4 to 6, incl.
|
0.250
|
|
Over 6
|
0.375
|
ASTM A554 Rectangular Tube Size Chart
Gauge |
18 | 16 | 14 | 11 | 7 | 1/4 | 3/8 |
|---|---|---|---|---|---|---|---|
Inches |
0.049 | 0.065 | 0.083 | 0.120 | 0.180 | 0.250 | 0.375 |
| 1/2 x 3/4 | 0.38 | 0.05 | |||||
| 1/2 x 1 | 0.50 | 0.65 | 0.82 | 1.13 | |||
| 1/2 x 1-1/2 | 0.63 | 0.83 | 1.03 | 1.45 | |||
| 1/2 x 2 | 0.82 | 1.08 | 1.37 | 1.93 | 2.09 | ||
| 3/4 x 1 | 0.56 | 0.74 | 0.92 | 1.29 | |||
| 3/4 x 1-1/4 | 0.63 | 0.83 | 1.03 | 1.45 | 2.17 | ||
| 3/4 x 1-1/2 | 0.99 | 1.25 | 1.77 | ||||
| 3/4 x 2 | 0.89 | 1.17 | 1.48 | 2.09 | |||
| 1 x 1-1/4 | 0.99 | 1.25 | 1.77 | ||||
| 1 x 1-1/2 | 0.82 | 1.08 | 1.37 | 1.93 | |||
| 1 x 2 | 0.97 | 1.27 | 1.51 | 2.26 | 3.63 | ||
| 1 x 2-1/2 | 1.49 | 1.88 | 2.66 | ||||
| 1 x 3 | 1.30 | 1.69 | 2.14 | 3.06 | 4.46 | 6.01 | |
| 1 x 4 | 2.72 | 3.88 | 5.68 | 7.67 | |||
| 1-1/2 x 2 | 1.49 | 1.88 | 2.66 | ||||
| 1-1/2 x 2-1/2 | 1.30 | 1.69 | 2.14 | 3.06 | 4.46 | 6.01 | |
| 1-1/2 x 3 | 1.93 | 2.45 | 3.48 | 5.28 | |||
| 1-1/2 x 4 | 1.81 | 2.38 | 3.03 | 4.33 | 5.30 | 7.58 | |
| 2 x 3 | 2.72 | 3.88 | 5.68 | 7.67 | |||
| 2 x 4 | 3.29 | 4.97 | 6.90 | 9.35 | 13.64 | ||
| 2 x 5 | 5.67 | 8.06 | 10.89 | ||||
| 2 x 6 | 6.26 | 9.27 | 12.68 | 18.52 | |||
| 2 x 8 | 8.02 | 11.90 | 16.35 | 23.53 | |||
| 2 x 10 | 9.46 | 14.07 | 18.77 | 28.53 | |||
| 3 x 4 | 5.67 | 8.06 | 10.89 | ||||
| 3 x 5 | 6.26 | 9.27 | 12.68 | 18.52 | |||
| 3 x 6 | 7.22 | 10.52 | 13.80 | 21.03 | |||
| 4 x 6 | 8.02 | 11.90 | 16.35 | 23.35 | |||
| 4 x 8 | 9.46 | 14.07 | 18.77 | 28.53 | |||
| 4 x 10 | 22.71 | 33.54 | |||||
| 4 x 12 | 26.03 | 38.55 | |||||
| 6 x 8 | 22.51 | 33.35 | |||||
| 6 x 10 | 26.27 | 38.91 |
ASTM A554 grade mt304/ 304L sizes and weight
| Gauge | 18 | 16 | 14 | 11 | 7 | 1/4 | 3/8 |
|---|---|---|---|---|---|---|---|
| Inches | 0.049 | 0.065 | 0.083 | 0.120 | 0.180 | 0.250 | 0.375 |
| 1/2 | 0.30 | 0.39 | |||||
| 5/8 | 0.38 | 0.40 | |||||
| 3/4 | 0.50 | 65.00 | 0.81 | 1.13 | |||
| 1 | 0.63 | 0.83 | 1.03 | 1.45 | 2.17 | ||
| 1-1/4 | 0.82 | 1.08 | 1.37 | 1.93 | 2.99 | ||
| 1-1/2 | 0.97 | 1.27 | 1.61 | 2.26 | 3.63 | 4.41 | |
| 1-3/4 | 1.13 | 1.49 | 1.88 | 2.66 | 3.75 | ||
| 2 | 1.30 | 1.69 | 2.14 | 3.06 | 4.46 | 6.01 | |
| 2-1/2 | 2.72 | 3.88 | 5.68 | 7.67 | |||
| 3 | 3.29 | 4.97 | 6.90 | 9.35 | |||
| 3-1/2 | 5.67 | 8.06 | 10.89 | ||||
| 4 | 6.26 | 9.27 | 12.68 | 18.52 | |||
| 5 | 8.02 | 11.90 | 16.35 | 23.53 | |||
| 6 | 9.46 | 14.07 | 18.77 | 28.53 | |||
| 8 | 26.03 | 38.55 |
Chemical Composition Of ASTM A554
|
UNS # |
Grade |
Carbon,max |
Manga-nese,max |
Phosphorus, max |
Sulfur,max |
Silicon,max |
Nickel |
Chromium Molybdenum |
Titanium |
Columbium + Tantalum |
Nitrogen |
|
|
Austenitic
|
||||||||||||
|
|
301 |
0.15 |
2.00 |
0.045 |
0.030 |
1.00 |
6.0–8.0 |
16.0–18.0 |
… |
… |
… |
|
|
|
302 |
0.15 |
2.00 |
0.045 |
0.030 |
1.00 |
8.0–10.0 |
17.0–19.0 |
… |
… |
… |
|
|
|
304 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
8.0–11.0 |
18.0–20.0 |
… |
… |
… |
|
|
|
304L |
0.035A |
2.00 |
0.045 |
0.030 |
1.00 |
8.0–13.0 |
18.0–20.0 |
… |
… |
… |
|
|
|
305 |
0.12 |
2.00 |
0.045 |
0.030 |
1.00 |
10.0–13.0 |
17.0–19.0 |
… |
… |
… |
|
|
|
309S |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
12.0–15.0 |
22.0–24.0 |
… |
… |
. . . |
|
|
|
309S-Cb |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
12.0–15.0 |
22.0–24.0 |
… |
… |
B |
|
|
|
|
|
||||||||||
|
|
310S |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
19.0–22.0 |
24.0–26.0 |
… |
… |
… |
|
|
|
316 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
10.0–14.0 |
16.0–18.0 |
2.0–3.0 |
… |
… |
|
|
|
316L |
0.035A |
2.00 |
0.045 |
0.030 |
1.00 |
10.0–15.0 |
16.0–18.0 |
2.0–3.0 |
… |
… |
|
|
|
317 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
11.0–14.0 |
18.0–20.0 |
3.0–4.0 |
… |
… |
|
|
|
321 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
9.0–13.0 |
17.0–20.0 |
… |
C |
… |
|
|
|
|
|
||||||||||
|
|
330 |
0.15 |
2.00 |
0.040 |
0.030 |
1.00 |
33.0–36.0 |
14.0–16.0 |
… |
… |
… |
|
|
|
347 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
9.0–13.0 |
17.0–20.0 |
… |
… |
B |
|
|
|
|
|
||||||||||
|
|
|
|
|
|
Ferritic |
|
|
|
|
|
|
|
|
|
429 |
0.12 |
1.00 |
0.040 |
0.030 |
1.00 |
0.50 max |
14.0–16.0 |
… |
… |
… |
|
|
|
430 |
0.12 |
1.00 |
0.040 |
0.030 |
1.00 |
0.50 max |
16.0–18.0 |
… |
… |
… |
|
|
|
430-Ti |
0.10 |
1.00 |
0.040 |
0.030 |
1.00 |
0.075 max |
16.0–19.5 |
… |
5 × C min, 0.75 max |
… |
|
|
S40900 |
409D |
|
|
|
|
|
|
|
|
|
|
|
|
S40910 |
|
0.030 |
1.00 |
0.040 |
0.020 |
1.00 |
0.50 |
10.5–11.7 |
… |
Ti 6X (C+N) min, 0.050 max |
Cb 0.17 |
0.030 |
|
S40920 |
|
0.030 |
1.00 |
0.040 |
0.020 |
1.00 |
0.50 |
10.5–11.7 |
… |
Ti 8X (C+N) min,Ti 0.15–0.50 |
Cb 0.10 |
0.030 |
|
S40930 |
|
0.030 |
1.00 |
0.040 |
0.020 |
1.00 |
0.50 |
10.5–11.7 |
… |
(Ti+Cb) [0.08+83(C+N)] min,0.75 max;Ti 0.05 min 0.75 max |
… |
0.030 |
|
S43400 |
434 |
0.120 |
1.00 |
0.040 |
0.030 |
1.00 |
… |
16.0–18.0 |
0.75–1.25 |
… |
… |
… |
|
S43600 |
436 |
0.120 |
1.00 |
0.040 |
0.030 |
1.00 |
… |
16.0–18.0 |
0.75–1.25 |
… |
Cb 5 × C min 0.080 max |
… |
|
S43035 |
439 |
0.030 |
1.00 |
0.040 |
0.030 |
1.00 |
0.50 |
17.0–19.0 |
… |
Ti[0.20+4(C+N)]min,1.10 max;Al 0.015 |
… |
0.030 |
|
S41003 |
E |
0.030 |
1.50 |
0.040 |
0.030 |
1.00 |
1.50 |
10.5–12.5 |
… |
… |
… |
0.030 |
|
|
||||||||||||
|
S44400 |
444 |
0.025 |
1.00 |
0.040 |
0.030 |
1.00 |
1.00 |
17.5–19.5 |
1.75–2.50 |
(Ti+Cb)[0.20+4(C+N)] min 0.80 max |
|
0.035 |
|
S41008 |
410S |
0.080 |
1.00 |
0.040 |
0.030 |
1.00 |
0.60 |
11.5–13.5 |
… |
… |
… |
… |
|
S44100 |
F |
0.030 |
1.00 |
0.040 |
0.030 |
1.00 |
1.00 |
17.5–19.5 |
… |
0.1–0.5 |
Cb 0.3+ (9× C) |
… |
|
|
||||||||||||
ASTM A554 Mechanical Properties
|
|
Tensile |
Elon- |
|
|
Grade |
Strength, |
Strength |
gationB in 2 |
|
min, |
min, |
in., or [50 |
|
|
|
ksi [MPa] |
ksi [MPa] |
mm] min., |
|
|
% |
||
|
|
|
|
|
|
|
|
|
|
|
All austenitic steelsC |
75 [515] |
30 [210] |
35 |
|
MT 403 |
60 [415] |
30 [210] |
20 |
|
MT 405 |
60 [415] |
30 [210] |
20 |
|
MT 410 |
60 [415] |
30 [210] |
20 |
|
MT 414 |
100 [690] |
65 [450] |
15 |
|
MT 416 Se |
60 [415] |
35 [240] |
20 |
|
MT 429/MT 430 |
60 [415] |
35 [240] |
20 |
|
MT 431 |
105 [725] |
90 [620] |
20 |
|
MT 440 A |
95 [655] |
55 [380] |
15 |
|
MT 443 |
70 [485] |
40 [275] |
20 |
|
MT 446–1 |
70 [485] |
40 [275] |
18 |
|
MT 446–2 |
65 [450] |
40 [275] |
20 |
|
29-4 |
70 [485] |
55 [380] |
20 |
|
29-4-2 |
70 [485] |
55 [380] |
20 |
|
S31260 |
100 [690] |
65 [450] |
25 |
|
S31803 |
90 [620] |
65 [450] |
25 |
|
S32101 |
|
|
|
|
Wall # 0.187 in. [5.00 mm] |
101 [700] |
77 [530] |
30 |
|
Wall > 0.187 in. [5.00 mm] |
94 [650] |
65 [450] |
30 |
|
S32205 |
95 [655] |
70 [485] |
25 |
|
S32304 |
|
|
|
|
OD 1 in. [25 mm] and Under |
100 [690] |
65 [450] |
25 |
|
OD Over 1 in. [25 mm] |
87 [600] |
58 [400] |
25 |
|
S32506 |
90 [620] |
65 [450] |
18 |
|
S32550 |
110 [760] |
80 [550] |
15 |
|
S32707 |
133 [920] |
101 [700] |
25 |
|
S32750 |
116 [800] |
80 [550] |
15 |
|
S32760 |
109 [750] |
80 [550] |
25 |
|
S32808 |
116 [800] |
80 [550] |
15 |
|
S32906 |
|
|
|
|
Wall below 0.40 in. [10 mm] |
116 [800] |
94 [650] |
25 |
|
Wall 0.40 in. [10 mm] |
109 [750] |
80 [550] |
25 |
|
and above |
|
|
|
|
S32950 |
100 [690] |
70 [480] |
20 |
|
S39274 |
116 [800] |
80 [550] |
15 |
|
N08020 |
80 [550] |
35 [240] |
30 |
|
N08367 |
|
|
|
|
#3⁄16 in. [4.8 mm] wall |
100 [690] |
45 [310] |
30 |
|
>3⁄16 in. [4.8 mm] wall |
95 [655] |
45 [310] |
30 |
|
N08800 |
|
|
|
|
cold worked annealed |
75 [515] |
30 [205] |
30 |
|
hot-finished annealed |
65 [450] |
25 [170] |
30 |
|
N08810 |
65 [450] |
25 [170] |
30 |
|
N08811 |
65 [450] |
25 [170] |
30 |
|
N08904 |
71 [490] |
31 [215] |
35 |
|
N08925 |
87 [600] |
43 [295] |
40 |
|
N08926 |
94 [650] |
43 [295] |
35 |
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