Material Insight
Stainless Steel Price per kg by Grade (2026): 304, 316, 2205 & More
By YKWiki Materials Pricing Team · Published 2026-08-30
Quick Answer: Stainless Steel Price per kg in 2026
In 2026, commodity stainless steel costs roughly $2.30 to $6.00 per kg as cold-rolled coil/plate, depending on grade. The most common grade, 304, trades around $2.80-$3.80/kg, while molybdenum-bearing grades like 316 run $4.20-$5.60/kg. Machined bar, finished tube, and small-quantity orders cost 2-3x more than the raw coil price.
“How much does stainless steel cost per kg?” is the single most common question buyers ask — and the answer is never one number. Stainless steel is a family of dozens of grades with very different alloying costs, so quoting a single price per kg is like quoting “the price of a car.” This guide gives you realistic 2026 per-kg prices for every major grade, explains what moves the price, and shows why your final delivered cost is usually 2-4x the bare metal price.
Stainless Steel Price per kg by Grade (2026, Bulk Sheet/Coil)
The table below shows typical 2026 prices for commodity sheet/coil in tonnage quantities (2,000 kg+). Prices are USD per kilogram and vary with finish, thickness, alloy surcharge, and market cycle.
| Grade | Type | Price per kg | Key Cost Driver |
|---|---|---|---|
| 201 | Austenitic (low-Ni) | $2.20 - $3.00 | Low nickel — the budget grade |
| 409 | Ferritic | $2.30 - $3.10 | Chromium only, no nickel |
| 430 | Ferritic | $2.40 - $3.20 | Interior/domestic appliances |
| 304 | Austenitic | $2.80 - $3.80 | 8% nickel — the workhorse grade |
| 304L | Austenitic (L) | $2.90 - $3.90 | Low-carbon for welding |
| 420 | Martensitic | $3.00 - $4.00 | Hardened cutlery grade |
| 316 | Austenitic | $4.20 - $5.50 | 2-3% molybdenum |
| 316L | Austenitic (L) | $4.30 - $5.60 | Marine/chemical processing |
| 321 | Austenitic (Ti-stabilized) | $4.80 - $6.20 | High-temperature service |
| 440C | Martensitic | $5.00 - $6.50 | Bearing-grade hardness |
| 2205 (Duplex) | Duplex | $5.50 - $7.50 | High Cr+Mo+N |
| 309 | Austenitic | $5.50 - $7.00 | High temperature lining |
| 17-4PH | Precipitation-hardening | $6.00 - $8.00 | Aerospace/valve stock |
| 310S | Austenitic (25Cr/20Ni) | $6.50 - $8.50 | Furnace-grade alloy |
| 2507 (Super Duplex) | Super duplex | $8.00 - $10.00 | Offshore & chemical |
| 904L | Austenitic (super-austenitic) | $9.00 - $11.00 | High Ni + Mo |
Prices are indicative 2026 bulk coil/sheet ranges in USD. Actual quotes vary by alloy surcharge, thickness, finish, quantity, and region.
Why Price per Grade Varies: The Alloying Metal Cost
Stainless steel’s price is dominated by its alloying elements, and the two that move the needle most are nickel and molybdenum, which trade as exchange-grade commodities. When nickel spikes, 300-series (austenitic) grades rise immediately; when it falls, so do 304 and 316 prices. Ferritic grades like 409 and 430 contain almost no nickel, which is why they stay the cheapest. Duplex and super-austenitic grades pile on chromium, molybdenum, and nitrogen, pushing their per-kg cost far above 304.
Form Factor: Price per kg Also Depends on the Shape
The per-kg price multiplier changes dramatically by product form. These are rough rules of thumb over the raw coil price:
| Form | Typical Multiplier over Coil | Example (304) |
|---|---|---|
| Cold-rolled coil/sheet | 1.0x | $2.80 - $3.80 |
| Hot-rolled plate | 1.1 - 1.3x | $3.10 - $4.90 |
| Round bar / billet | 1.5 - 2.0x | $4.20 - $7.60 |
| Seamless tube/pipe | 2.0 - 3.0x | $5.60 - $11.40 |
| Machined component (small Qty) | 4.0 - 10x | $11+ |
Buying 10 kg of 304 bar off the shelf will cost far more per kg than a 5-ton coil. Always quote on a comparable form and quantity basis.
What Else Moves the Delivered Per-Kg Price
- Quantity discounts: Tonnage orders earn mill pricing; kilograms-at-a-time pay distributor premiums.
- Surface finish: No.1 (hot band), 2B (cold-rolled, annealed, pickled), BA (bright annealed), and #4 brushed finish each add a step.
- Thickness & width: Thin gauges and wide coils carry dimensional surcharges.
- Alloy surcharge vs. base: Many mills quote a base price plus a floating alloy surcharge tied to nickel/molybdenum futures.
- Certification & traceability: Heat numbers and mill certs (needed for pressure vessels or aerospace) add cost but protect your liability.
- Region & import duties: Local supply, tariffs, and freight all land on the final per-kg number.
How to Get the Best Per-Kg Price
- Specify the exact grade and form — a 304 round bar quote is meaningless unless thickness, finish, gauge, and quantity are fixed.
- Ask for base + alloy surcharge so you understand what’s metal cost versus processing.
- Compare at least two distributors and one mill on identical specs and tonnage.
- Buy thicker stock when possible — thickness surcharges often favor heavier sections.
- Verify density — grades with more alloying (duplex, 904L) weigh the same per volume, so compare on a per-kg basis, never per-piece without a stated weight.
Frequently Asked Questions
Is 316 stainless worth the extra cost over 304?
316 typically costs 40-70% more per kg than 304 because of its molybdenum content, which adds chloride/pitting corrosion resistance. Pay the premium only where pitting, marine, or chemical exposure matters — for dry indoor applications 304 is usually sufficient.
What is the cheapest stainless steel grade?
Ferritic grades 409 and 430, plus low-nickel 201, are the least expensive, typically $2.20-$3.20/kg. They lack 304’s all-purpose corrosion resistance but cover exhaust systems, appliances, and interior trim.
Why did my stainless steel price change from last month?
Stainless prices track the LME nickel (and molybdenum) market plus alloy surcharges. A swing in nickel of $1,000/ton can shift 304 pricing by roughly $0.08-0.15/kg. Check the current monthly alloy surcharge before locking a long-term contract.
How much does 304 stainless steel cost per kg vs aluminum?
Stainless 304 (~$2.80-$3.80/kg) is roughly 3-6x the price of commodity aluminum (~$2.4-3.0/kg at 2026 levels when compared on a per-kg basis for comparable stock), but stainless’s higher strength and corrosion resistance can make it cheaper per part when section can be reduced.
Sources: 2026 mill/distributor pricing surveys, LME nickel & molybdenum cash prices, YKWiki material cost index. Disclaimer: Metal prices fluctuate daily with exchange-commodity markets. Figures are indicative bulk ranges, not firm quotes; obtain current quotes from suppliers before purchase.
References & Standards
- ASTM International. Steel & Alloy Standards. astm.org
- International Organization for Standardization (ISO). iso.org
- National Institute of Standards and Technology (NIST). Materials Data. nist.gov
- ASM International. Materials Information Society. asminternational.org
- World Steel Association. Steel Statistical Yearbook. worldsteel.org