Alloy 20 Fasteners
Alloy 20 was developed by Carpenter Technology as an upgrade to 316 Stainless.
It resists hot sulfuric acid and is often found in chemical mixers and fertilizer equipment.
Generally, it is an economical alternative to Alloy C276 and other higher nickel alloys.
Stock: Hex bolts, nuts, washers (1/4″ to 1″). Some socket head cap screws and set screws in stock.
Properties
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Grade:
- 20 Cb-3 (® Carpenter Technology)
- ATI 20 (® Allegheny Technologies)
- Incoloy Alloy 20 (® Special Metals)
- Nickelvac 23 (® Allegheny Technologies)
- Nicrofer 3620 Nb (® ThyssenKrupp VDM)
- Primary Resistance: Corrosion
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Specifications:
- ASTM B473 (Bar)
- DIN 2.4660
- UNS N08020
- Tensile Strength (KSI): 85
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Chemistry:
- C .02, Cb & Ta .5, Cr 19.5, Cu 3.25, Fe 41, Mn .4, Mo 2.1, Ni 34, P .025, S .002, Si .4