ASTM A803 Stainless Steel Feedwater Heater Tube
Welded Ferritic Stainless Steel Tube for Tubular Feed Water Heaters
ASTM A803 specification covers welded ferritic stainless steel feedwater heater tubes including those bent, if specified, into the form of U-tubes for application in tubular feedwater heaters. Welded ferritic stainless steel feedwater heater tube sizes covered shall be 5 ⁄8 to 1 in. [15.9 to 25.4 mm] inclusive, in outside diameter, and average or minimum wall thicknesses of 0.028 in. [0.7 mm] and heavier. ASTM A803 stainless steel welded feedwater heater tube made from flat-rolled steel by an automatic welding process with no addition of filler metal. We have trusted name as a ASTM A803 ss welded tube supplier.Our offered ASTM A803 ss welded tubes primarily consist of the austenitic grades of stainless steel including 409,439,444, 446Mo with annealed and pickled, bright annealed mill finish, polished finish. ASTM A803 grade 444 welded Square and rectangular tube shall be marked with the heat number.ASTM A803 Grade 409 welded tube is commonly shipped without protective coating. If special protection is needed, details shall be specified in the order. ASTM A803 grade 439 welded 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 A803 SS Welded Tube Specifications
| Specifications | ASTM A803/ ASME SA803 | |
| Grades | ASTM A803( 405,409,439,444, 446Mo) | |
| O.D. | 12.7 – 102 MM | |
| Wall Thickness | 0.5 – 5 MM | |
| Length | Straight Lenghts upto 30 meters | |
| 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 | |
| Types | Round, Square, Rectangle, Coil, "U" Shape, Heat Exchanger Tube , Condnser Tube & Honed Tubes | |
| Products | ASTM A803 405 Stainless Steel Polished Tubes, SS 409 Polished Tubes, SS 439 No.4 Finish Tube, SS 444 Polished Tubes, ASTM A803 446Mo Tubing, ASTM A803 405 Heat Exchanger Tubes, ASTM A803 409 Welded Polished Tubes, ASTM A803 439 Stainless Steel Square Tube, ASTM A803 444 condenser tubes,ASTM A803 405 Square Tube | |
ASTM A803 Equivalent
| GRADE | UNS NO | DIN/WERKSTOFF |
|---|---|---|
| ASTM A803 405 | S40500 | 1.4002 |
| ASTM A803 409 | S40900 | 1.4512 |
| ASTM A803 439 | S43035 | 1.4510 |
| ASTM A803 444 | S44400 | 1.4521 |
| ASTM A803 446Mo | S44600 | 1.4672 |
Dimensions of ASTM A803 Welded Feedwater Heater Tubes
|
OD Size, in. (mm) |
OD, ±in. |
mm |
ID, ±in. |
mm |
|
Up to 3⁄32 (2.4), excl |
0.001 |
0.03 |
0.001 |
0.03 |
|
3⁄32 to 3⁄16 (2.4 to 4.8), excl |
0.0015 |
0.038 |
0.0015 |
0.038 |
|
3⁄16 to 1⁄2 (4.8 to 12.7), excl |
0.003 |
0.08 |
0.005 |
0.13 |
|
1⁄2 to 1 (12.7 to 25.4), excl |
0.004 |
0.10 |
0.006 |
0.15 |
|
1 to 11⁄2 (25.4 to 38.1),excl |
0.005 |
0.13 |
0.007 |
0.18 |
|
1 1⁄2 to 2 (38.1 to 50.8),excl |
0.006 |
0.15 |
0.008 |
0.20 |
|
2 to 2 1⁄2 (50.8 to 63.5),excl |
0.007 |
0.18 |
0.010 |
0.25 |
|
2 1⁄2 to 3 1⁄2 (63.5 to 88.9),excl |
0.010 |
0.25 |
0.014 |
0.36 |
|
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3 1⁄2 to 5 (88.9 to 127.0),incl |
0.015 |
0.38 |
0.020 |
0.51 |
|
Over 5 to 16 (127.0 to 406.4), incl |
0.00125 in./in. or mm/mm of cir-cumference |
0.0013 in./in. or mm/mm of cir-cumference |
|
|
Chemical Composition Of ASTM A803
|
Grade |
UNSS 40900 |
UNS S 43035 |
UNSS 44627 |
UNS S 44626 |
UNS S 44635 |
UNS S 44660 |
UNSS 44700 |
UNSS 44800 |
UNS S 44400 |
UNS S 44735 |
|
|
TP409 |
TP439 |
TP XM-27 |
TP XM-33 |
25-4-4 |
26-3-3 |
29-4 |
29-4-2 |
18-2 |
29-4C |
|
Element |
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Composition, % |
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C, max |
0.08 |
0.07 |
0.01A |
0.06 |
0.025 |
0.030 |
0.010 |
0.010 |
0.025 |
0.030 |
|
Mn, max |
1.00 |
1.00 |
0.40 |
0.75 |
1.00 |
1.00 |
0.30 |
0.30 |
1.00 |
1.00 |
|
P, max |
0.045 |
0.040 |
0.02 |
0.040 |
0.040 |
0.040 |
0.025 |
0.025 |
0.040 |
0.040 |
|
S, max |
0.030 |
0.030 |
0.02 |
0.020 |
0.030 |
0.030 |
0.020 |
0.020 |
0.030 |
0.030 |
|
Si, max |
1.00 |
1.00 |
0.40 |
0.75 |
0.75 |
1.00 |
0.20 |
0.20 |
1.00 |
1.00 |
|
Ni |
0.50 max |
0.50 max |
0.5B max |
0.50 max |
3.5–4.5 |
1.0–3.5 |
0.15 max |
2.0–2.5 |
1.00 max |
1.00 max |
|
Cr |
10.5– |
17.0–19.0 |
25.0–27.5 |
25.0–27.0 |
24.5–26.0 |
25.0–28.0 |
28.0–30.0 |
28.0–30.0 |
17.5–19.5 |
28.0–30.0 |
|
|
11.7 |
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Mo |
. . . |
. . . |
0.75–1.50 |
0.75–1.50 |
3.5–4.5 |
3.0–4.0 |
3.5–4.2 |
3.5–4.2 |
1.75–2.50 |
3.6–4.2 |
|
Al |
. . . |
0.15 max |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
|
Cu |
. . . |
. . . |
0.20 max |
0.20 max |
. . . |
. . . |
0.15 max |
0.15 max |
. . . |
. . . |
|
N |
. . . |
0.04 max |
0.015 |
0.040 max |
0.035 |
0.040 max |
0.020 |
0.020 |
0.035 max |
0.045 max |
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max |
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maxC |
maxC |
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Ti |
6 3 C |
0.20 + 4 (C + |
. . . |
7 3 (C + N) but |
(Ti + Cb) = 0.2 |
Ti + Cb = 6 3 |
|
|
(Ti + Cb) = |
Ti + Cb = 6 3 |
|
|
min; 0.75 |
N) min; 1.10 |
|
no less than |
+ 4 (C + N) |
(C + N) but no |
|
|
0.20 + 4 (C + |
(C + N) but no |
|
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max |
max |
|
0.20 min; |
min; 0.80 |
less than 0.20 |
|
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N) min; 0.80 |
less than 0.20 |
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min; |
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min; 1.00 max |
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1.00 max |
max |
1.00 max |
|
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max |
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Cb |
. . . |
. . . |
0.05–0.20 |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
. . . |
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ASTM A803 Mechanical Properties
|
Grade |
Tensile Strength,min, ksi [MPa] |
Yield Strength,min, ksi [MPa] |
ElongationAin 2 in.or 50 mm,min, % |
|
ASTM A803 Welded Tube TP 409 |
55 [380] |
30 [205] |
20 |
|
ASTM A803 Welded Tube TP 439 |
60 [415] |
30 [205] |
20 |
|
ASTM A803 Welded Tube TP XM-27 |
65 [450] |
40 [275] |
20 |
|
ASTM A803 Welded Tube TP XM-33 |
68 [470] |
45 [310] |
20 |
|
ASTM A803 Welded Tube 25-4-4 |
90 [620] |
75 [515] |
20 |
|
ASTM A803 Welded Tube 26-3-3 |
85 [585] |
65 [450] |
20 |
|
ASTM A803 Welded Tube 29-4 |
80 [550] |
60 [415] |
20 |
|
ASTM A803 Welded Tube 29-4-2 |
80 [550] |
60 [415] |
20 |
|
ASTM A803 Welded Tube 18-2 |
60 [415] |
35 [240] |
20 |
|
ASTM A803 Welded Tube 29-4C |
75 [515] |
60 [415] |
18 |
ASTM A803 SS Welded Tube Hardness Requirement
|
Destructive Testing Facilities |
Non Destructive Testing Facilities |
|
Our in-house testing laboratory is accredited by NABL |
|
| Physical Testing | Laboratory Spectrometer & Portable Spectrometer |
| ASTM A803 Welded Stainless Steel Tube Flattenining Test | Positive Material Identification (PMI) Test |
| ASTM A803 Welded Stainless Steel Tube Tension Test | Micro Structure Examination Test / Analysis |
| ASTM A803 Welded Stainless Steel Tube Flaring Test | Ferrite Number Test |
| ASTM A803 Welded Stainless Steel Tube Flange Test | Online O D Measurements |
| ASTM A803 Welded Stainless Steel Tube Reverse Bend Test | Weight Measurement for Chemical Analysis |
| ASTM A803 Welded Stainless Steel Tube Transverse Tesnsion Test | Online Eddy Current Test |
| ASTM A803 Welded Stainless Steel Tube Transverse Guide Bend Test | Ultrasonic Test for Flaw Detection |
| ASTM A803 Welded Stainless Steel Tube Impact Test at Controlled Temperature | Portable U T Tester for Thickness Measurement |
| Realtime Radiography Tests | |
| X- Ray Test – Film Radiography | |
| Film Reviewer | |
| Surface Roughness | |
| Videoscopy | |
| Microscopes with Pohotograph Facility | |
| Residual Stress Test | |
| Hydrotest – Straight Tube and ‘U’ Bend Tubes | |
| Air under Water Test – Straight length up to 30 Meter | |
| Air under Water Test – for U Bends 15 Meter | |
Testing Facilities of ASTM A803 Stainless Steel Welded Tubes
|
Destructive Testing Facilities |
Non Destructive Testing Facilities |
|
Our in-house testing laboratory is accredited by NABL |
|
| Physical Testing | Laboratory Spectrometer & Portable Spectrometer |
| ASTM A803 Welded Stainless Steel Tube Flattenining Test | Positive Material Identification (PMI) Test |
| ASTM A803 Welded Stainless Steel Tube Tension Test | Micro Structure Examination Test / Analysis |
| ASTM A803 Welded Stainless Steel Tube Flaring Test | Ferrite Number Test |
| ASTM A803 Welded Stainless Steel Tube Flange Test | Online O D Measurements |
| ASTM A803 Welded Stainless Steel Tube Reverse Bend Test | Weight Measurement for Chemical Analysis |
| ASTM A803 Welded Stainless Steel Tube Transverse Tesnsion Test | Online Eddy Current Test |
| ASTM A803 Welded Stainless Steel Tube Transverse Guide Bend Test | Ultrasonic Test for Flaw Detection |
| ASTM A803 Welded Stainless Steel Tube Impact Test at Controlled Temperature | Portable U T Tester for Thickness Measurement |
| Realtime Radiography Tests | |
| X- Ray Test – Film Radiography | |
| Film Reviewer | |
| Surface Roughness | |
| Videoscopy | |
| Microscopes with Pohotograph Facility | |
| Residual Stress Test | |
| Hydrotest – Straight Tube and ‘U’ Bend Tubes | |
| Air under Water Test – Straight length up to 30 Meter | |
| Air under Water Test – for U Bends 15 Meter | |
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