AISI 304L Stainless Steel Plate in Stock

Gnee offers high-quality AISI 304L stainless steel plates in stock, providing fast delivery, consistent material quality, and competitive pricing for industrial, construction, and fabrication projects. As a low-carbon austenitic stainless steel (≤0.03% C), 304L combines excellent corrosion resistance, weldability, and durability, making it ideal for chemical processing, food and beverage, marine, and architectural applications.

Having 304L stainless steel plate in stock ensures customers can reduce lead times, minimize project delays, and maintain high-quality standards without waiting for new production.

 

AISI 304L Stainless Steel Plate Specifications

Item	Specification
Material Grade	AISI 304L Stainless Steel
UNS No.	S30403
Standard	ASTM A240 / ASME SA240 / EN 10088
Thickness Range	1 mm – 50 mm (customizable)
Width	Up to 2000 mm
Length	Up to 6000 mm
Surface Finish	2B / No.1 / BA / Pickled
Delivery Condition	Solution Annealed
Certification	MTC, Chemical Analysis Report, SGS/BV (on request)

Chemical Composition of AISI 304L Stainless Steel (wt.%)

Element	Content
Chromium (Cr)	18.0 – 20.0
Nickel (Ni)	8.0 – 10.5
Carbon (C)	≤ 0.03
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 1.0
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.03
Iron (Fe)	Balance

Mechanical Properties

Property	Typical Value
Tensile Strength	485 – 620 MPa
Yield Strength	≥ 170 MPa
Elongation	≥ 40%
Hardness	≤ 90 HRB

 

Differences between 304L and 304 stainless steel plates
The main difference between 304L and 304 is the carbon content: 304L ≤0.03%, 304 ≤0.08%. The lower carbon content makes 304L less susceptible to intergranular corrosion after welding, while maintaining similar chromium content (18–20%) and nickel content (8–10.5%) as 304. Therefore, it has slightly lower mechanical properties but superior weldability and corrosion resistance.

 

How does 304L compare with 316L stainless steel?
304L contains 18–20% chromium and 8–10.5% nickel, offering good general corrosion resistance. In contrast, 316L adds 2–3% molybdenum, which greatly improves resistance to pitting and crevice corrosion in chloride-rich environments, such as seawater or chemical solutions. The carbon content is similarly low (≤0.03%), so both grades weld well, but 316L is preferred for marine, chemical, and high-chloride applications due to its superior corrosion resistance.

 

Can 304L stainless steel plates be welded?
Yes, 304L stainless steel plates can be welded effectively. The "L" in 304L stands for low carbon, with a maximum carbon content of 0.03%, compared to 0.08% in standard 304. This reduced carbon minimizes carbide precipitation during welding, significantly lowering the risk of intergranular corrosion. It is suitable for all common welding methods, including TIG, MIG, and resistance welding, without the need for post-weld annealing in most cases. 

 

 

To better serve international buyers, GNEE offers flexible payment methods, including T/T (30% down payment, 70% paid before shipment), sight letter of credit (L/C), and DP/DA payment options for long-term partners; we use seaworthy wooden crates or pallets for packaging, providing moisture-proof, rust-proof, and edge protection measures, and clearly marking the heat number and dimensions on the plates; we guarantee efficient delivery, with in-stock 304 plates shipped within 7-10 days and custom sizes shipped within 15-25 days; we provide complete factory test certificates (MTC 3.1) and have extensive global export experience covering the Middle East, Europe, the United States, and Southeast Asia.