● Product name: 38CrMoAlA Screw Barrel
===Description===
● Equivalent Steel
| JINYI CODE | GB | JIS | DIN |
| JYN1 | 38CrMoAl | SACM645 | 34CrAlMo5 |
● Chemical Composition (Wt%)
Steel | C | Si | Mn | P | S | Cr | Mo | Ni | Cu | Al |
42CrMo | 0.35 0.42 | 0.20 0.45 | 0.30 0.60 | Max 0.035 | Max 0.035 | 1.35 1.65 | 0.15 0.25 | Max 0.03 | Max 0.03 | 0.70 1.10 |
● Mechanical Properties
Hardness (HB) | Yield Strength N/mm² | Tensile Strength N/mm² | Elongation Percentage % | Area reduction Percentage % | Impact valve J/cm² |
Max. 229 | ≥835 | ≥980 | ≥14 | ≥45 | ≥88 |
● Characteristics
1. High surface hardness, good abrasive-resistant and endurance strength
2. Good resistant to corrosion and temperature
3. Low hardenabiltiy characteristic
● Heat Treatment
1. Queching 940℃, water cooling or oil cooling
2. Tempering 640℃, water cooling or oil cooling
● Benefit
1. High Quality Nitriding Steel
2. High hardness
3. Economic choose
===Appliance===
● Screw Diameter: Φ10mm-Φ300mm
● Technology: Nitriding treatment
● Appliance: PVC, PP, PE, PA, PC, ABS, AS etc
● Technical Index
1. Depth of Nitrated Layer: 0.5-0.8mm
2. Hardness of nitration: 900-1020Hv
3. Fragility of nitration: Less than grade 1
