DX51D+ZM310 is a zinc-aluminum-magnesium (ZAM) coated steel based on a low-carbon cold-rolled substrate. It combines excellent formability from DX51D steel with superior corrosion resistance provided by the ZM310 coating.
In recent years, it has been increasingly used in the electrical appliance industry as a cost-effective alternative to stainless steel and conventional
galvanized steel, especially in environments requiring high durability and long service life.
What is DX51D+ZM310 Steel?
DX51D refers to a cold-rolled mild steel grade with excellent ductility and deep drawing performance, making it suitable for stamping and forming processes.
ZM310 refers to a zinc-aluminum-magnesium coating with approximately 310 g/m² coating weight. This coating significantly improves corrosion resistance, especially at cut edges, scratches, and formed areas.
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DX51D+ZM steel chemical composition % by mass max
| Grade |
Material No. |
C |
Si |
Mn |
P |
S |
Ti |
|
DX51D+ZM |
1.0226+ZM |
0.18 |
0.50 |
1.20 |
0.12 |
0.045 |
0.30 |
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DX51D+ZM steel Mechanical properties
| Grade |
Material No. |
R90 min |
N90 |
Yield Strength MPa |
Tensile strength MPa |
Elongation A80 min |
|
DX51D+ZM |
1.0226+ZM |
- |
- |
- |
270-500 |
22 |
(self-healing effect)
Compared to Traditional Materials
Table 1: DX51D vs DC51D Steel
| Item | DX51D | DC51D |
|---|---|---|
| Standard | EN 10346 (Hot-dip coated steel) | EN 10152 / similar deep-drawing cold rolled grade |
| Base Material | Low carbon cold-rolled steel | Low carbon deep drawing steel |
| Main Feature | Good general formability | Better deep drawing performance |
| Formability | Good | Very good |
| Surface Quality | Suitable for coating and painting | Higher surface quality requirement |
| Typical Applications | Appliance housings, light structural parts, roofing components | Complex stamped parts, deep-drawn components |
| Coating Compatibility | Excellent (Zinc / ZM / ZAM) | Excellent (Electro-galvanized / coating systems) |
| Cost Level | Medium | Slightly higher |
| Industrial Focus | Construction & general manufacturing | Precision stamping & deep drawing industry |
Mill Test Certificate
Table 2: DX51D vs DX52D Steel
| Item | DX51D | DX52D |
|---|---|---|
| Standard | EN 10346 | EN 10346 |
| Material Grade | Commercial quality steel | Higher formability steel |
| Yield Strength | Standard level | Slightly lower for better forming |
| Elongation | Good | Higher elongation |
| Forming Ability | Good for simple stamping and bending | Better for complex forming and deep drawing |
| Surface Suitability | Good for coated products | Better surface consistency after forming |
| Typical Applications | Appliance panels, brackets, electrical enclosures | Complex appliance parts, automotive components, deep-drawn parts |
| Processing Difficulty | Medium | Easier for complex shapes |
| Cost Level | Lower | Slightly higher |
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Main Applications in Electrical Appliances
1. Home Appliance Housings
2. Electrical Control Cabinets and Panels
3. Internal Structural Components
4. Small Stamped Electrical Parts
Common Grades and Standards
| Common Grades and Standards | ||
| Grade | Standard | Characteristics & Applications |
| DX51D+ZM | EN 10346 | Commercial grade, general forming, for construction and general use |
| DX52D+ZM | EN 10346 | Drawing grade, for medium forming requirements |
| DX53D+ZM | EN 10346 | Deep drawing grade, for complex forming |
| DX54D+ZM | EN 10346 | Extra deep drawing grade |
| S250GD+ZM | EN 10346 | Structural grade, 250MPa yield strength |
| S350GD+ZM | EN 10346 | Structural grade, 350MPa yield strength |
| S550GD+ZM | EN 10346 | High-strength structural grade, 550MPa yield strength |
| DC51D+ZM | Low carbon steel, for appliances and general fabrication | |
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Coating Specifications
| Coating Designation | (g/m²) Coating Weight (Both Sides) | Typical Applications |
| ZM60 | 60 | General indoor use |
| ZM90 | 90 | Light industry, appliances |
| ZM120 | 120 | Construction, general use |
| ZM150 | 150 | Construction, outdoor structures |
| ZM180 | 180 | Highly corrosive environments |
| ZM200 | 200 | Harsh environments, coastal/industrial areas |
| ZM275 | 275 | Heavy corrosion environments |
| ZM310 | 310 | Special heavy corrosion requirements |
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Processing Capability
If used in manufacturing, DX51D+ZM310 steel can be processed through:
- Stamping (deep drawing and precision punching)
- Bending and forming
- Laser cutting
- Welding and assembly
We also provide customized processing for electrical appliance components, including OEM production of stamped parts and structural frames based on customer drawings.
Contact Us for OEM Solutions and Pricing.
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FAQ
Q1: What is DX51D+ZM310 steel used for in electrical appliances?
It is mainly used in appliance housings, control cabinets, and stamped structural components.
Q2: Is ZM310 coating better than traditional galvanized coating?
Yes, ZM310 offers higher corrosion resistance and better edge protection.
Q3: Can DX51D+ZM310 steel be stamped into complex shapes?
Yes, DX51D has excellent formability suitable for deep drawing and stamping.
Q4: What is DX51D+ZM310 steel mainly used for in electrical appliances?
DX51D+ZM310 steel is mainly used for appliance housings, internal structural supports, electrical control cabinets, and stamped metal components due to its excellent corrosion resistance and good formability.
Q5: Is DX51D+ZM310 suitable for deep drawing and stamping processes?
Yes, the DX51D substrate provides good ductility and forming performance, making it suitable for stamping, bending, and moderate deep drawing applications in electrical appliance manufacturing.
Q6: Why is ZM310 coating preferred in humid environments?
ZM310 coating offers enhanced corrosion resistance and edge protection compared to traditional galvanized coatings, making it ideal for humid, coastal, or temperature-variable environments commonly found in appliance applications.
Q7: Can DX51D+ZM310 replace stainless steel in electrical appliance parts?
In many cases, yes. DX51D+ZM310 can replace stainless steel in non-critical structural and housing components, offering a more cost-effective solution while maintaining sufficient corrosion resistance.
Q8: What are the main advantages of using DX51D+ZM310 over traditional galvanized steel?
Compared with conventional galvanized steel, DX51D+ZM310 provides better cut-edge protection, longer service life, improved corrosion resistance, and better performance in demanding forming processes.