PIPE3-1/2STD Dimensions & Weight
PIPE3-1/2STD is 3-1/2 in nominal size standard weight (STD) structural steel pipe (AISC), weighing 9.12 lb per foot — a stock choice for bollards, pipe columns, and handrail. It is the lightest of the 2 PIPE3-1/2 sizes listed here.
PIPE3-1/2STD Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Nominal pipe sizenominal size, not the outside diameter | 3-1/2 in | NPS 3-1/2 |
| Weight class | STD | standard weight (STD) |
| Cross-section area (A)computed from weight and steel density | 2.68 in² | 17.3 cm² |
| Weight | 9.12 lb/ft | 13.6 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does PIPE3-1/2STD weigh and cost?
PIPE3-1/2STD weighs 9.12 lb per foot. At an example material price of $0.92/lb that is about $8.39 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