DIN 1.4539 SUS904L Precision Ground Stainless Steel Plate.video
Apr 16, 2025
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DIN 1.4539 SUS904L Precision Ground Stainless Steel Plate.video
1.Standards and Chemical Composition Comparison
| Standard | C≤ | Ni | Cr | Mo | Cu | Core Differences |
|---|---|---|---|---|---|---|
| DIN 1.4539 | 0.02% | 24–26% | 19–21% | 4–5% | 1.2–2.0% | German standard with higher copper content upper limit, enhancing acid resistance. |
| SUS904L | 0.02% | 23–28% | 19–23% | 4–5% | 1–2% | Japanese standard with a wider nickel content range. |
2. Mechanical Properties and Processing Characteristics
Mechanical Properties:
| Property | Value | vs 316L | Test Standard |
|---|---|---|---|
| Tensile Strength (MPa) | ≥520 | 15% Higher | ASTM A240 |
| Elongation (%) | ≥35 | 10% Higher | ASTM A240 |
| Hardness (HB) | ≤220 | 10% Lower | ASTM A370 |
| Sulfuric Acid Corrosion Rate | 0.002mm/year | 5x Better | ASTM G31 |
Processing Key Points:
Cold Working: Use low cutting speed (≤50m/min) and sulfurized oil lubrication to avoid work hardening and cracking.
Welding: Recommend ERNiCrMo-3 filler wire (AWS A5.14), control interpass temperature ≤60℃, no post-weld heat treatment required.
