HSS3.500X0.313 Dimensions & Weight
HSS3.500X0.313 is a round hollow section to AISC, 3.5 in outside diameter with a 0.313 in nominal wall (0.291 in design wall per AISC), weighing 10.66 lb per foot — used for handrail posts, equipment frames, and miscellaneous metals. It is the heaviest of the 7 HSS3.500 sizes listed here.
HSS3.500X0.313 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Outside diameter | 3.5 in | 88.9 mm |
| Wall thickness (nominal) | 0.313 in | 8 mm |
| Design wall thickness0.93 x nominal, per AISC for A500 | 0.29 in | 7.4 mm |
| Cross-section area (A)computed from weight and steel density | 3.13 in² | 20.2 cm² |
| Weight | 10.66 lb/ft | 15.9 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does HSS3.500X0.313 weigh and cost?
HSS3.500X0.313 weighs 10.66 lb per foot. At an example material price of $0.92/lb that is about $9.81 per foot. Set your quantity, length, and price to total your own run:
Material only, example pricing. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
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Related sizes
Deeper reading: HSS Sizes: Square & Rectangular Tube Guide · How to calculate steel weight