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16 Cards in this Set
- Front
- Back
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What does the National Sanitation Foundation do? |
Work to standardize local and national codes which assure that the equipment installed can be easily maintained in sanitary condition. |
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Name some similar properties stainless has to common steel... |
Easily formed Easily welded with proper equipment Can be drawn to various shapes |
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Properties of stainless different to common steel... |
More difficult to cut, drill, punch and saw Costs more Buckled and warps during welding and grinding |
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What is added to 316 stainless to make it more corrosion resistant? |
Molybdenum |
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What are the two main alloys are in stainless steel? |
Chromium & Nickel |
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What is the most commonly used finish of stainless? |
#4 |
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What is #4 finish stainless used for? |
Bodies, tops & shelving |
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What is #3 finish stainless used for? |
Dish tables & sinks. Is slightly coarser than #4 and is often heavier gages. |
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What type of studs are frequently used for food service equipment? |
Copper coated steel 10-24 National Coarse Thread (Stainless are available) |
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What is a punch list? |
A list of items that must be completed or corrected before the job is approved. |
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Why is GTAW welding used for stainless steel? |
No spatter, easier to finish welds, less heat to cause buckling & warping |
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What are chill bars? |
Bars made of thick aluminum or copper clamped to the sides of long seams to help absorb and carry away heat. |
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What is quenching? |
Using water to prevent heat from traveling to other sections of the fixture & controls buckles. |
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How do you form a countertop edge to prevent spillage? |
Marine edge. |
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How do you attach stainless steel rivets? |
1 or 2 heavy hammer blows. |
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What is the angle of drill bits used on stainless steel? |
130-140 degrees |
