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Rough Machined Forged Steel Flanges Open Die Forging Rustproof
A.Content of Delivery
| Item No | Quantity(Pcs) | Description | Heat No | Factory Product No |
| UD22363.01-10-03/1 | 8 | Φ512*368 | 20170421-209 | YL4935-YL4942 |
| UD22363.01-10-01/1 | 8 | Φ512*691 | 20170421-209 | YL4943-YL4950 |
B.Chemical Analysis
| Heat No | C% | Si% | Mn% | S% | Cr % | Mo % | P% | H% |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.60-0.90 | ≤0.040 | 0.80-1.10 | 0.15-0.25 | P≤0.035 | H≤2.0 |
| 166-1989 | 0.39 | 0.23 | 0.75 | 0.006 | 0.99 | 0.20 | 0.007 | 1.3 |
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 | |
| 4140 | ≥665 | 850-1000 | ≥13 | L | T ≥50J | 248-302 | ||
| UD22363.01-10-03/1 UD22363.01-10-01/1 Sample position 1(T) | 853 | 939 | 16.9 | 59 | 95.100.105 | 268-282 | ||
FORGING REDUCTION STATEMENT
We hereby certificate that the forge reduction ratio as follow:
| Item No | Dimension | Forging Reduction | Quantity(Pcs) |
| UD22363.01-10-03/1 | Φ512*368 | 4:1 | 8 |
| UD22363.01-10-01/1 | Φ512*691 | 4:1 | 8 |
Metallographic Test Report
| Sample Name | Flange Shaft | Item No: | UD22363.01-10-03/1 UD22363.01-10-01/1 | Factory Product No | YL4935-YL4950 | |||||
| -YLQuantity( Pcs) | 16 | Material | 4140 | Heat No | 20170421-209 | |||||
| Sample Condition | OK | Heat treatment | Q+T | Test Place | Laboratory | |||||
| Ambient Condition | 23℃ | Test Date | 2017-05-05 | 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 | ||||||||
| Thick | ||||||||||
| Type B | Thin | |||||||||
| Thick | ||||||||||
| Type C | Thin | |||||||||
| Thick | ||||||||||
| Type D | Thin | |||||||||
| Thick | ||||||||||
| Grain size | ≥6 | 7 | Qualified | |||||||
| Statement:This report only responsible for samples | ||||||||||
Certificate of Ultrasonic Test
| Parts | Customer | Date | 2017-05-05 | ||||
| Name of forging | Flange shaft | Testing surface | Surface | ||||
| Material of forging | 4140 | 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 | |
| UD22363.01-10-03/1 | Φ512*368 | 8 | None | Qualified | / | ||
| UD22363.01-10-01/1 | Φ512*691 | 8 | 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): | |||||
