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Hot Rolled Axle Shaft Forging ASTM E45-76 Method A Ra 6.3 μm
A.Content of Delivery
| Item No | Quantity(Pcs) | Description | Heat No | Factory Product No |
| Forged shaft | 3 | Φ590*1225 | 20170408-210 | 4775-4777 |
B.Chemical Analysis
| Heat No | C% | Si% | Mn% | S% | Cr % | Mo % | Ni% | P% | H% |
| 4340 | 0.38-0.43 | 0.10-0.35 | 0.60-0.80 | S:0.008-0.016 | 0.70-0.90 | 0.20-0.30 | 1.65-2.0 | P≤0.015 | H≤2.0 |
| 1703B033 | 0.42 | 0.23 | 0.68 | 0.008 | 0.83 | 0.27 | 1.78 | 0.014 | 1.2 |
C.Mechanical Properties Tests
| Specimen | Test Temp | Yield Strength | Tensile Strength | Elongation(Tr) | Reduction of Area | Charpy Impact(20℃) | Hardness | |
| Nr./No | 20℃ | Rp0.2 N/mm² | Rm N/mm² | A% | Ψ% | Joule | HB | |
| 4340 | L | T | ||||||
| YL4775 | 350-355 | |||||||
| YL4776 | 355-365 | |||||||
| YL4777 | 350-357 | |||||||
FORGING REDUCTION STATEMENT
We hereby certificate that the forge reduction ratio as follow:
| Item No | Dimension | Forging Reduction | Quantity(Pcs) |
| Forged shaft | Φ590*1225 | 4:1 | 3 |
Metallographic Test Report
| Sample Name | Forged Shaft | Item No: | 00055928 | Factory Product No | YL4775-YL4777 | |||||
| -YLQuantity( Pcs) | 3 | Material | 4340 | Heat No | 20170408-210 | |||||
| Sample Condition | OK | Heat treatment | Q+T | Test Place | Laboratory | |||||
| Ambient Condition | 23℃ | Test Date | Sampling Location | Longitudinal | ||||||
| Test Standard | ASTM E45-76 Method A | |||||||||
| Test Results | ||||||||||
| Test Item | Technical Requirements | Test Results | Single Evaluation | |||||||
|
Non-Metallic Inclusions | Type A | Thin | ≤1.5 | Qualified | ||||||
| Thick | ≤1.5 | Qualified | ||||||||
| Type B | Thin | ≤1.5 | Qualified | |||||||
| Thick | ≤1.5 | Qualified | ||||||||
| Type C | Thin | ≤1.5 | Qualified | |||||||
| Thick | ≤1.5 | Qualified | ||||||||
| Type D | Thin | ≤1.5 | Qualified | |||||||
| Thick | ≤1.5 | Qualified | ||||||||
| Grain size | ≥6 | Qualified | ||||||||
| Statement:This report only responsible for samples | ||||||||||
Certificate of Ultrasonic Test
| Parts | Customer | Date | 2017-04-19 | ||||
| Name of forging | Forged shaft | Testing surface | Surface | ||||
| Material of forging | 4340 | Surface condition | Ra 6.3 μm | ||||
| Test Condition Requirement | Woke piece state | Q+T | Detection method | Straight vertical Wave | |||
| Instrument model | HNW-6100 | Working sensitivity | Φ4 | ||||
| Prode model | 2.5P20 | Coupling way | Direct contact | ||||
| Block model | Big calm bottom CS-1 | Couplant | Machine oil | ||||
| Sweep | Deepness way | Surface compensation | 0db | ||||
| Standards | AS 1065 | Rate as require | 1:1 | ||||
| Acceptance standard | Level 1 | Acceptable class | ≤Φ4 | ||||
| Test Result | Item No | Forging specifications | Qty | Defect | Result | Note | |
| 00055928 | Φ590*1225 | 3 | None | Qualified | / | ||
|
| |||||||
| Test Result | 1.The above forgings are meet the standard,The result is eligibility | ||||||
| Nondestructive testing Signature | Tested by:(UT-II) | Approved by:(UT-III) | |||||
