Oil, Gas & Energy Equipment Manufacturing calculator
Pressure Vessel Weld Cost Calculator
Price the weld work on a pressure vessel from weld length, cost per inch, included scope and fixed charges. The page splits variable from fixed cost and compares the blended per-inch cost with your target.
What this calculator does
- Weld cost for a pressure vessel from weld length, cost per inch, included scope and fixed charges, checked against a per-inch target.
Formula used
- Variable weld cost = total weld length × welding cost per inch × weld scope included ÷ 100
- Total weld cost = variable weld cost + fixed setup and nondestructive examination cost
- Cost per weld inch = total weld cost ÷ total weld length, blank at zero length
- Fixed share of total = fixed setup and examination cost ÷ total weld cost × 100, blank at zero total
- Cost per weld inch vs target = target cost per weld inch − cost per weld inch, blank at zero length
Inputs explained
- Total Weld Length: Inches of joint length across every weld on the vessel.
- Welding Cost per Inch: Blended welding cost for one inch of completed joint.
- Weld Scope Included: Share of the total weld length that this scope prices.
- Fixed Setup and Nondestructive Examination Cost: Lump setup and nondestructive examination charges for the vessel.
- Target Cost per Weld Inch: Per-inch cost the quote or budget must stay under.
How to use the result
- Best suited to quoting a pressure vessel weld package, checking a weld quote against a target, pricing an outsourced weld scope.
- Wall thickness, pass count and welding position sit inside the blended per-inch rate, not modeled separately. Weld volume and deposited filler mass are not metered, and no gas or liquid volume enters, so no standard-to-actual condition conversion applies.
Current U.S. benchmarks
- Industrial electricity averages 9.77 cents per kWh across the U.S. (EIA, Jul 2026), up 4.7% from a year earlier. Energy-intensive steps carry this directly into unit cost.
- Steel mill PPI stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. New factory orders are up 8.5% year over year (Census).
Common questions
- What counts as a weld inch here? One inch of completed joint length, counted once however many passes it takes. The model multiplies that length by your cost per inch and the included scope.
- Why does cost per weld inch fall as the vessel grows? Fixed setup and nondestructive examination charges stay flat in total, so a longer weld length spreads them thinner. The variable part stays linear, but the blended per-inch figure drops.
- Can I price only my share of the welding? Yes. Enter the full weld length and set weld scope included to your share, say 58%. The total then prices your scope and the fixed share shows how much of the bill is fixed.
- Does weld volume or gas use enter the price? No. This is a length basis: weld inches times a blended cost. Deposited filler volume, shielding gas and liquid volumes are not metered, so no condition conversion applies.
Related guides
Last reviewed 2026-10-01.