Hot-Dip Galvanized DP Dual-Phase Steel Performance Characteristics
1.Microstructure:
- Predominantly martensite and ferrite, with martensite islands uniformly dispersed in the ferrite matrix.
- The softer ferrite provides excellent formability
- The harder martensite delivers high strength
- Strength increases with the proportion of martensite
2.Performance Features:
- No yield platform
- No room-temperature aging
- Low yield-to-tensile ratio
- High work hardening exponent
- High bake hardening value
| Material | GB | JIS | DIN | EN | ASTI | |
| hot-dip galvanized Coil Plate | General use Used for standard applications without special forming requirements |
DX51D+Z 120160 180 200 275 | SGCC | St01Z St02Z |
DX51D+Z | CSA CSB CSC |
| Stamping Grade Specifically formulated for stamping/pressing operations |
DX53D+Z | SGCD1+ | St04Z St05Z |
DX53D+Z | FS A FS B |
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Deep drawing grade Specifically formulated for severe forming/deep drawing operations requiring high ductility |
DX54D+Z | SGCD2 SGCD3 |
DX54D+Z | DDS A DDS B |
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Structural grade Used for load-bearing structural components, prioritizing strength |
S250GD+Z | SGC340 | StE250Z | S250GD+Z | SS37(255) SS40(275) SS50(340) SS80(550) |
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| S280GD+Z | SGC400 | StE280Z | S280GD+Z | |||
| S320GD+Z | SGC440 | StE320Z | S320GD+Z | |||
| S350GD+Z | SGC490 | StE350Z | S350GD+Z | |||
| S550GD+Z | SGC570 | |||||
| SGH340+Z | ||||||
| SGH440+Z | ||||||
HC250/450DPD+Z
HC340/590DPD+Z
HC420/780DPD+Z
HC440/780DPD+Z
HC550/980DPD+Z
HC700/980DPD+Z Hot dip galvanized stamping steel series product performance
3.Primary Applications:
- Preferred material for structural components, including:
- Structural parts
- Reinforcement parts
- Anti-collision parts (e.g., crossmembers, longitudinal beams, crash bars)
4.Application Cases
- Rear connecting plate for side sill reinforcement
- A-pillar inner panel
GNEE STEEL specializes in high manganese steel, wear-resistant steel, high-strength steel, automotive steel, medium-high carbon steel, cold rolled, pickling, galvanized, silicon steel, and other steel varieties. As a modern enterprise, it integrates raw material supply, processing, and logistics distribution.