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Stainless steel, also known as inox steel, is the most corrosion-resistant kind of steel. Because of its chromium content. Stainless steel does not stain, corrode, or rust as easily as ordinary steel.
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| UNS# | Alloy | Specifications | Sizes |
| S13800 | Stainless Steel 13-8 | AMS 5629 TYPE 1, AMS 2300, CAP. ASTM-A-564 Grade XM-13
| .75 - 3.5" DIA 
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| S15500 | Stainless Steel 15-5 | AMS 5629 ASTM-A-564
| .75 - 10" DIA 
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| S17400 | Stainless Steel 17-4 | AMS 5643, AMS 2203, CAP. ASTM-A-564 Grade 630
| 1 - 10" DIA 
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| S30400 | Stainless Steel 304 Condition A | ASTM-A-276, ASTM-A-193, QQ-S-763 Rev E Amend 01, QQ-S-763 Rev F, AMS 5639,
ASTM-A-479, ASME-SA-479, ASTM-A-320 | 1.5 - 5.5" SQ.  .75 - 10.5" DIA |
| S30400 | Stainless Steel 304 Condition B | QQ-S-763(E Am. 1)(F), AMS-QQ-S-763, ASTM-A-276, ASTM-A-193 Grade B8 CL2
| .5 - 2.5" DIA  .5 - 2" HEX 
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| S30454 | Stainless Steel 304L | ASTM-A-276, QQ-S-763, AMS 5647, ASTM-A-479, ASME-SA-479
| 1.5 - 5.5" SQ.  .75 - 10.5" DIA  |
| S30500 | Stainless Steel 305 | ASTM-A-581
| .016" DIA  .020" DIA  .024" DIA  .0286" DIA  .032" DIA  .035" DIA  |
| S31600 | Stainless Steel 316 Condition A | MIL-S-7720, AMS 5648, QQ-S-763, ASTM-A-193, ASTM-A-276, ASTM-A-479, ASME-SA-479, ASTM-A- 320
| 1.5 - 5.5" SQ. .5 - 6" DIA 
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| S31600 | Stainless Steel 316 Condition B | MIL-S-7720A, QQ-S-763, E Amend. 1, QQ-S-763REVF,
ASTM-A-276, ASTM-A-479, AMS-S-7720, ASTM- A-193
| .5 - 1.5" HEX 
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| S32100 | Stainless Steel 321 | AMS 5645, ASTM-A-276, ASTM-A-479, QQ-S-763E AM1, QQ-S-763F, ASME-SA-479, ASTM-A-320 Grade B8T, ASTM-A-193 Grade B8T
| .375 - .75" DIA 
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| K66286 | Stainless Steel A286 | AMS 5737 ASTM-A-453, GR 660, Class A ASTM-A-638, GR 660 Type I
| .375 - 12" DIA  |
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