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19 Cards in this Set
- Front
- Back
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Which element is mainly responsible for the formation of the protective oxide on SS? |
Chromium |
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What is the minimum amount of chromium required in steel to make it a stainless steel? |
10% |
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What is the most outstanding characteristic of SS? |
Corrosion resistance |
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SS has ______ coefficient of thermal expansion and ______ thermal conductivity |
High. Low. |
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Which type of stainless steel is non magnetic? |
Austenitic |
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Which type of SS contains the most nickel? |
Austenitic |
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Which type of SS has FCC structure like that of iron at high temps? |
Austenitic |
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Which type of SS has BCC structure like that of iron at room temp and can't be hardened by heat treatment? |
Ferritic |
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Which 400 series SS can be heat treated to a wide range of hardness and strength levels? |
Martensitic |
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Which two alloying elements in martensitic SS are responsible for its high hardenability? |
Carbon and chromium |
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AISI 200 and 300 series SS are |
Austenitic |
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Which series of chromium steels (4%-6%) are not classified as SS |
500 series |
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Which two series of SS have an austenitic grain structure? |
200 & 300 |
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Which series of SS can be either ferritic or martensitic? |
400 series |
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What is the result of carbide precipitation? |
Loss of corrosion resistance |
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What is the max carbon content level in an ELC grade SS? |
0.03% |
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When welding austenitic SS, the interpass temp shouldn't be higher than: |
316 C (600 F) |
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One method used to prevent carbide precipitation is to |
Maintain short arc length |
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What is the significance of a SS SMAW electrode with suffix 15? |
DCRP only (DCEP) |
