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Centerway steel specializes in the production of the stainless steel pipe and fittings, and large inventory of resources, Factory direct sales
Centerway steel specializes in the production of the stainless steel pipe and fittings, and large inventory of resources, Factory direct sales
ASTM A928/A928M-04 Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
Application: Refineries; Nuclear Plant; Aerospace Industry; Chemical Fertilizer; Petrochemicals' Oli & Gas and etc.
Class 1—Pipe shall be double welded by processes using fifiller metal in all passes and shall be radiographed completely.
Class 2—Pipe shall be double welded by processes using filler metal in all passes. No radiograph is required.
Class 3—Pipe shall be single welded by processes using filler metal in all passes and shall be radiographed completely.
Class 4—Same as Class 3, except that the weld pass exposed to the inside pipe surface is permitted to be made without the addition of filler metal
Class 5—Pipe shall be double welded by processes using filler metal in all passes and shall be spot radiographed.
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Chemical Composition |
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UNS Designation |
C max |
Mn max |
P max |
S max |
Si max |
Cr |
Ni |
Mo |
N |
Cu |
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S31803 |
0.03 |
2 |
0.03 |
0.02 |
1 |
21.0-23.0 |
4.5-6.5 |
2.5-3.5 |
0.08-0.20 |
- |
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S32205 |
0.03 |
2 |
0.03 |
0.02 |
1 |
22.0-23.0 |
4.5-6.5 |
3.0-3.5 |
0.14-0.20 |
- |
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S32750 |
0.03 |
1 |
0.03 |
0.01 |
1 |
24.0-26.0 |
6.0-8.0 |
3.0-4.0 |
0.20-0.30 |
0.50-1.00 |
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Mechanical Properties |
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UNS Designation |
Tensile Strength, min |
Yield Strength, min |
Elongation (mm) |
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|
ksi |
Mpa |
ksi |
Mpa |
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S31803 |
90 |
620 |
65 |
450 |
25 |
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S32205 |
90 |
620 |
65 |
450 |
25 |
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S32750 |
116 |
795 |
80 |
550 |
15 |
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Heat Treatment |
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UNS |
Temperature, °F [°C] |
Quench |
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S31803 |
1870–2010 [1020–1100] |
rapid cooling in air or water |
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S32205 |
1870–2010 [1020–1100] |
rapid cooling in air or water |
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S32750 |
1880–2060 [1025–1125] |
rapid cooling in air or water |
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S32760 |
2010–2085 [1100–1140] |
rapid cooling in air or water |
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Available Dimension Range |
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OD(mm/inch) |
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Wall thickness (SCH) |
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10 |
20 |
30 |
STD |
40 |
60 |
XS |
80 |
100 |
120 |
140 |
160 |
XXS |
…100mm |
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21.3 (1/2'') |
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26.7 (3/4'') |
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33.4 (1'') |
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42.2 (1 1/4'') |
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48.3 (1 1/2'') |
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60.3 (2'') |
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73 (2 1/2'') |
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88.9 (3'') |
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101.6 (3 1/2'') |
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114.3 (4'') |
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141.3 (5'') |
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168.3 (6'') |
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219.1 (8'') |
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273 (10'') |
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323.8 (12'') |
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355.6 (14'') |
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406.4 (16'') |
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457 (18'') |
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508 (20'') |
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559 (22'') |
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610 (24'') |
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660 (26'') |
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711 (28'') |
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762 (30'') |
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813 (32'') |
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864 (34'') |
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914 (36'') |
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965.2 (38'') |
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1016 (40'') |
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