Steel 904L plate, also known as UNS N08904 or 1.4539, is a high-performance super-austenitic stainless steel that offers excellent resistance to sulfuric acid, phosphoric acid, and chloride-rich environments. At our company specializing in stainless steel and nickel alloy products, we produce 904L plates every week to ASTM B625, ASME SB625, and EN 1.4539 standards.
In this article we present clear, up-to-date pricing tables. All numbers are based on current raw-material market levels and our factory-direct quotes as of April 2026.
904L Stainless Steel Plate Price per Kg
The average 904L stainless steel plate price per kg today ranges from $6.80 to $9.20, depending on thickness, quantity, and certification level. Our direct-from-mill prices are usually 18–25 % lower than distributor prices because we melt, refine, and roll the material ourselves.
Table 1: 904L Plate Price per Kg by Thickness (FOB China, USD/kg)
|
Thickness (mm) |
Price Range (USD/kg) |
Price for 1–5 tons |
Price for 10+ tons |
Typical Application |
|
3 – 6 |
8.20 – 9.20 |
8.80 |
8.20 |
Linings, cladding, small vessels |
|
8 – 12 |
7.50 – 8.60 |
8.10 |
7.50 |
Heat exchangers, tanks |
|
15 – 20 |
7.10 – 8.00 |
7.60 |
7.10 |
Pressure vessels, piping supports |
|
25 – 30 |
6.80 – 7.70 |
7.30 |
6.80 |
Structural bases, offshore platforms |
|
40 – 50 |
7.30 – 8.40 |
7.80 |
7.30 |
Heavy-duty reactors |
Prices include Positive Material Identification (PMI) testing, ultrasonic inspection, and full mill test certificates (EN 10204 3.1). For PED or third-party inspection (SGS, BV, TÜV) add $0.40–$0.70 per kg. Mirror polish or custom beveling adds $0.50–$0.90 per kg.
What Affects 904L Plate Price?
Understanding the factors that influence cost helps you budget accurately and negotiate effectively.
1. Raw Material Markets
Nickel, chromium, and molybdenum prices directly impact final cost. 904L contains approximately 25% nickel, 20% chromium, and 4.5% molybdenum. When LME metal prices fluctuate, plate costs adjust accordingly.
2. Plate Thickness
Thinner plates often cost more per kilogram due to higher processing complexity.
|
Thickness |
Price Impact |
Reason |
|
3-6 mm |
+10-15% per kg |
Precision rolling, more finishing |
|
6-20 mm |
Standard pricing |
Optimal production efficiency |
|
20-50 mm |
-5-10% per kg |
Better material utilization |
3. Order Quantity
Larger orders receive volume discounts. Consolidating requirements into one order of 500+ kg typically saves 10-20% compared to multiple small purchases.
4. Surface Finish
Special finishes add cost but may be required for your application.
|
Finish |
Price Adjustment |
Best Application |
|
2B (Standard) |
Base price |
General industrial use |
|
No. 4 (Brushed) |
+10-15% |
Architectural, food processing |
|
BA (Bright Annealed) |
+15-25% |
High-purity, decorative |
|
Pickled & Descaled |
+5-10% |
Welding preparation |
5. Certification and Testing
Mill Test Reports (MTR) and third-party inspection add value-and cost.
|
Certification |
Typical Cost Add |
|
EN 10204 3.1 MTR |
Included in base price |
|
Third-party inspection (SGS, BV) |
+5-10% |
|
Additional corrosion tests (ASTM G-48) |
+10-20% |
6. Delivery and Logistics
Shipping distance, urgency, and packaging affect final landed cost.
Standard export packaging: Included
Wooden crate or protective film: +3-5%
Air freight vs. sea freight: Significant difference for urgent orders
904L Price Comparison vs. Other Stainless Steels
Understanding relative costs helps justify material selection for your project.
|
Material |
Price per Kg (USD) |
Relative Cost |
Best Application |
|
304 Stainless |
$3 - $5 |
1x (Baseline) |
General corrosion resistance |
|
316L Stainless |
$4 - $7 |
1.5x |
Marine, mild chlorides |
|
904L Stainless |
$12 - $18 |
3-4x |
Sulfuric acid, moderate chlorides |
|
Duplex 2205 |
$8 - $14 |
2-3x |
Seawater, high strength |
|
254 SMO |
$20 - $30 |
4-6x |
Extreme chloride service |
|
Hastelloy C276 |
$40 - $60 |
8-12x |
Mixed acids, harsh chemicals |
Certifications and Standards for 904L Plate
High-quality 904L plates conform to international standards, ensuring consistent performance and traceability:
ASTM A240 / A480 – Standard specifications for stainless steel plates and testing.
ASME Section II, Part A – Material standards for pressure vessels and piping.
ISO 9001 Certification – Quality management and manufacturing traceability.
Certifications assure clients that purchased plates meet rigorous industrial and safety requirements.
Frequently Asked Questions (FAQ)
Q1: Why does 904L cost more than 316L stainless steel?
A: 904L contains higher alloy content (more nickel, chromium, molybdenum, and copper) and requires specialized production processes. Its superior corrosion resistance in acids and chlorides justifies the premium for demanding applications.
Q2: Is the price per kg the same for all thicknesses?
A: No. Thinner plates (3-6 mm) often cost more per kg due to higher rolling and finishing costs. Thicker plates (20+ mm) may offer better value per kilogram.
Q3: How often do 904L prices change?
A: Prices can fluctuate weekly based on LME nickel and molybdenum prices. Formal quotes are typically valid for 7-14 days.
Q4: Can I get a discount for repeat orders?
A: Yes. Many suppliers offer loyalty discounts or contract pricing for regular customers. Ask about long-term supply agreements.
Q5: What is the minimum order quantity for 904L plates?
A: Most suppliers accept orders as small as 50 kg, but better pricing applies to orders of 200 kg or more.
Q6: Does 904L price include certification?
A: Standard Mill Test Reports (EN 10204 3.1) are typically included. Third-party inspection or special testing may add 5-20% to the base price.
