S 355 J 0 W Corten Steel

 

 

 

 

Key Points for Cutting S355J0+N Steel Plate

1. Selection of Cutting Methods

Method	Suitability	Advantages	Considerations
Flame Cutting	Thick plates (>20mm), low-cost applications.	Low cost, suitable for simple shapes.	- Requires preheating (100–150°C for thick plates). - Grind the heat-affected zone (HAZ) to remove oxidation.
Plasma/Laser Cutting	Medium-thin plates (<50mm), high-precision needs.	High speed, minimal HAZ, complex shapes.	- Plasma: Opt for high-power systems (≥100A) for 垂直度 (perpendicularity). - Laser: Ideal for thin plates (<20mm), requires nitrogen/oxygen assist gas.
Waterjet Cutting	All thicknesses, high-precision/complex profiles.	No thermal deformation, smooth edges.	- High equipment cost. - Slower speed for thick plates; uses abrasive materials (e.g., garnet).

2. Operational Precautions

Gas Pressure:

Flame cutting: Oxygen purity ≥99.5%, fuel gas (propane/acetylene) pressure adjusted for plate thickness.

Plasma cutting: Air/nitrogen pressure at 0.4–0.6 MPa for stable arc.

 

 

 

 

 

Temperature Management

Normalized State (J0+N):

Avoid excessive heat input (e.g., repeated cutting/heating) to prevent grain coarsening and reduced mechanical properties (e.g., impact toughness).

For thick plates, preheat to 50–100°C to reduce cutting stress.

Post-Processing

Edge Grinding:

Remove burrs, slag, and HAZ (grind to ≥2mm depth) to ensure smooth edges, especially for welded joints.

Defect Inspection:

Check for laminations or cracks (using visual/Magnetic Particle Inspection, MPI) on Z-direction (through-thickness) critical components.

Anti-Corrosion Treatment:

Apply zinc-rich primer or rust inhibitor to cut edges promptly to prevent corrosion.

 

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our S 355 J 0 W Corten Steel, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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