Product Details

904L is a very low carbon containing high alloy austenitic stainless steel. The steel designed for the harsh corrosion conditions. 904L has been standardized in many countries now, and have already been approved in the manufacture of pressure vessels.

904L alloy with the same used as CrNi austenitic steel, has a good resistance to pitting and crevice corrosion capabilities, very high stress corrosion cracking capacity, good intergranular corrosion resistance property, good processability and Solderability. The highest temperature heating up to 1180 ℃ when hot forging, the lowest temperature stop forging not less than 900℃. This steel may hot forming during1000 - 1150℃. The steel heat treatment process is 1100 - 1150 ℃, cold fast afrer heated. Although this may use common steel welding technology for welding, but the best way are manual arc welding and TIG welding.

When using manual arc welding, the welding rod diameter should no more than 2.5 mm when welding 6 mm plate; the welding rod diameter is less than 3.2 mm when the thickness is greater than 6 mm. When need to heat treatment after welding, can fast-cooling after heat in 1075 - 1125℃. When useTIG welding, the filling metal can use with the same material, seam is subject to pickling,passivatingtreatment after the welding.

Maxi metal group manufacture and supply 904L alloy in bar,seamless pipe,sheet and plates. 

Other products are available upon request.

The application fields of 904L

904L alloy can be applied in many industrial fields:

1. Petroleum, petrochemical equipment, such as petrochemical equipment in the reactor.

2. Storage and transport  sulfuric acid, such as heat exchanger.

3. Flue gas desulfurization power plant, the main use of parts: absorption tower, flue, stalldoor, inner parts, spray system tower etc.

4. Organic acid treatment system in the scrubber and fan.

Why Choose Us 

1. You can get the perfect material according to your requirement at the least possible price.

2. We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.

3. The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)

4. e guarantee to give a response within 24hours(usually in the same hour)

5. You can get stock alternatives, mill deliveries with minimizing manufacturing time.

6. We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.

Maximetal’S Quality Assurance (including both Destructive and Non-Destructive) 

1. Visual Dimension Test

2. Mechanical examining like tensile, Elongation and reduction of area.

3. Impact analysis

4. Chemical examination analysis

5. Hardness test

6. Pitting protection test

7. Penetrant Test

8. Intergranular Corrosion Testing

9. Roughness Testing

10. Metallography Experimental Test

MAXI METAL’S Packaging

1.Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.

2. MAXI METAL’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,