Common size on stock, Special sizes needs new production.Can cut to Size, cut to Shape.
EMERSONMETAL
| Quantity: | |
|---|---|
| Parameter | Capability |
| Plate Thickness Range | 6mm – 300mm |
| Max Work Envelope | 4,000mm × 2,000mm × 800mm |
| CNC Milling Tolerance | ±0.02mm – ±0.05mm |
| CNC Drilling Tolerance | ±0.05mm (position), H7–H9 (hole) |
| Grade Category | Typical Grades |
| Structural Carbon Steel | Q235B, Q345B, S235JR, S355JR, ASTM A36 |
| Wear-Resistant Plate | NM400, NM500, Hardox 400/450/500 |
| Alloy Steel Plate | 4140, 4340, 42CrMo4 |
| Stainless Steel Plate | 304, 316, 2205 |
| Mold & Tool Steel | P20, 718, 1.2311 |
Q: What is the difference between plate machining and sheet metal fabrication?
A: Plate machining involves removing material from thick steel plate (typically 6mm and above) using milling cutters, drills, and boring tools to achieve precise dimensions. Sheet metal fabrication primarily cuts and bends thin material. If your part requires accurate bores, milled pockets, or tight flatness on material thicker than 6mm, plate machining is the correct process.
Q: Can you machine hardened steel plate, or must it be machined before heat treatment?
A: We machine plate in both conditions. Most carbon and alloy plates are machined in the as-rolled or normalized state, then heat treated if required. For wear-resistant grades already delivered quenched (e.g., NM500 at 450–550 HB), we use specialized ceramic and CBN tooling to machine profiles and holes. We will recommend the most cost-effective route based on your hardness requirements.
Q: How do you prevent warping when machining large, thin plates?
A: For plates between 6mm and 20mm thickness, warping is managed through strategic machining sequences (symmetrical stock removal), vacuum fixture clamping, and stress-relief annealing before finish machining. For very large thin plates, we may recommend leaving a stiffening web during roughing and removing it only during final passes.
