Common size on stock, Special sizes needs new production.Can cut to Size, cut to Shape.
EMERSONMETAL
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The 409L and 904L stainless steel sheets are both valuable materials with specific advantages tailored to different environmental conditions and industrial needs.
409L Stainless Steel Sheet:
Primary Use: Designed for low-temperature environments.
Key Features:
Oxidation Resistance: Offers excellent resistance to oxidation, making it suitable for applications where exposure to high temperatures and corrosive gases is common.
Cost-Effectiveness: Ideal for cost-sensitive applications, providing a balance between performance and affordability.
3.Common Applications:
Automotive exhaust manifolds
Catalytic converter housings
Oven side panels
904L Stainless Steel Sheet:
Primary Use: Suitable for high-corrosion environments.
Key Features:
Corrosion Resistance**: Provides outstanding resistance to corrosion, especially in harsh chemical environments.
Durability**: Highly durable, making it a reliable choice for long-term use in demanding conditions.
3.Common Applications**:
Sulfuric acid tanks
Phosphoric acid reactors
Both 409L and 904L stainless steel sheets are durable and reliable, ensuring longevity and performance in their respective applications. When selecting between the two, it is important to consider the specific environmental conditions and performance requirements of your application to ensure optimal results.
stainless steel sheet:
stainless steel coil:
We can supply all grades stainless steel sheets and stainless steel plate, 201, 202, 301. 304, 310s, 316L, 321, 430, 440C, 904L, 2205, 2207, 1CR13, 2CR13, 3CR13, 4CR13, and other grades materials, so many grades, and all sizes can be produced, 0.5mm to 300mm thickness all can be produced, special sizes can be produced. Except the raw materials,We are factory professional on making metal steel fabrication, we can make different types machine parts, we have laser cutting machine, bending machine, sawing cutting machine, welding machines, taping machine, polishing machine. We can all customized parts based on the drawings and designs.
409L 904LGrade Chemical Composition:
Grade | C % max | Si max | Mn max | P max | S max | Cr max | Ni max | Mo max | Cu max |
| 409L | 0.03 | 1 | 1 | 0.04 | 0.03 | 10.5-11.75 | 0.5 | - | - |
904L | 0.02 | 1 | 2 | 0.045 | 0.035 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 1.0-2.0 |
409L 904LGrade Technical Property
| Grade | tensile strength（MPa） | yield strength（MPa） | Elongation% |
| 409L | ≥360–415 | ≥175 | ≥20–25 % |
| 904L | ≥490 | ≥220 | ≥35 % |
| Product Name | 4.5mm Thickness 409L 904L Stainless Steel Plate Sheet Custom Laser Cutting |
| Surface Treatment | Pickled Surface; BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D |
| Grade | 409L 904L |
| Steel Grade Stocking | 301L, S30815, 301, 304N, 310S, S32305, 410, 316Ti, 316L, 316, 321, 410S, 410L, 436L, 347, 430, 309S, 304, 439, 409L, 420J2, 436, 304L, 904L, 444, 317L |
| Shape | Flat Steel Plate |
| Width | 60-2000mm |
| Thickness | 0.3-20mm |
| Length | 6,9,12m;Cut to Length |
| Processing | Laser Cutting, Waterjet Cutting, Flame Cutting, Bending, Welding, Tapping. |
| Technique | Hot Rolled for 409L and 904L |
| Brand | TianJin Emerson |
| Packing | According to Customer's Requirements or Export's Standard |
| Delivery Time | Common size on stock,3days;Special sizes needs new production. |
| Application | 409L:Automotive exhaust manifolds, catalytic converter housings, oven side panels, drying cylinders, building cladding 904L:Sulfuric acid storage tanks, phosphoric acid reactors, seawater desalination plants, pulp bleaching towers, offshore platform risers. |
we can do all kinds of material stainless steel sheet processing according to customer drawings
Q: What is the primary difference in chemical composition?
A: 409L contains negligible amounts of Ni, Mo, and Cu, relying on 11% Cr and Ti for stabilization; 904L contains 23–28% Ni, 4–5% Mo, 1–2% Cu, and C ≤ 0.02%, with total alloy content exceeding 409L by more than threefold.
Q: Can magnets be used for differentiation?
A: Yes, magnets can be used for differentiation. 409L is ferritic and exhibits strong magnetic properties; 904L is austenitic and is non-magnetic in the annealed state, remaining virtually non-magnetic even after cold working. This is the most intuitive method for rapid on-site identification.
Q: Which has better corrosion resistance, 409L or 904L?
A: 904L offers superior corrosion resistance and is specifically designed for high-acid, highly corrosive environments.
