Ultra low-temperature Automatic Impact Testing Machine
| Standards | JIS/ISO | ASTM | |||
|---|---|---|---|---|---|
| Reference Standards | JIS K 7111-1,ISO 179-1 | JIS K 7110,ISO 180 | ASTM D6110-10 | ASTM D256 | |
| Test Method | Charpy Impact Test | Izod Impact Test | Charpy Impact Test | Izod Impact Test | |
| Hammer Energy Capacity (J)*1 | 0.5, 1, 2, 4, 5 | 7.5, 15, 25*2 | 1, 2.75, 5.5, 11, 22 | 2.7 and above (past results: 0.5, 1, 2, 4, 5, 7.5, 15, 25) | 2.7 to 21.7 (past results: 1, 2.75, 5.5, 11, 22) |
| Anvil Lift for Charpy | Required | – | – | – | – |
| Impact Velocity | 2.9m/s | 3.8m/s | 3.5m/s | 3.46m/s | 3.5m/s |
| Hammer Release Angle | 150° | ||||
| Hammer | Refer to the respective sections below for details. | ||||
| Anvil | Refer to the respective sections below for details. | ||||
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Technical Specifications
*1 Hammer capacities other than the standard options can also be manufactured. Please inquire if hammers in kgf·cm units are required.*2 Hammers with a capacity of 50 J are not available.
Hammer
| Standard | Potential Energy | Impact Velocity | Angle of Striking Edge | Radius of Striking Edge |
|---|---|---|---|---|
| ISO/ JIS |
0.5J | 2.9m/s | 30±1° | R2±0.5mm |
| 1J | ||||
| 2J | ||||
| 4J | ||||
| 5J | ||||
| 7.5J | 3.8m/s | |||
| 15J | ||||
| 25J | ||||
| ASTM | 2.7 and above (past results: 0.5, 1, 2, 4, 5, 7.5, 15, 25) | 3.46m/s | 45±2° | R3.17±0.12mm |
The characteristics of the Charpy hammers differ between the test standards as shown in the table above. In ISO and JIS standards, the hammer length changes according to the impact velocity. Therefore, the same hammer cannot be used to create, for example, a 4 J impact and 7.5 J impact. Two different hammers must be prepared.
| Standard | Potential Energy | Impact Velocity | Radius of Striking Edge |
|---|---|---|---|
| ISO/ JIS |
1J | 3.5m/s | R0.8±0.2mm |
| 2.75J | |||
| 5.5J | |||
| 11J | |||
| 22J | |||
| ASTM | 2.7-21.7J | 3.5m/s | R0.8±0.2mm |
The same hammer is sometimes used between ISO (or JIS) and ASTM impact tests as the details of the hammers specified in the two standards are similar. However, to be precise, the shape of the striking edge differs between the standards as shown in the above image. Therefore, to conform to the test standards, hammers that match the test standard shall be used.
Anvil
| Symbol | Parameter | ISO/JIS | ASTM |
|---|---|---|---|
| ー | Parallelism between long axis of test sample and reference plane | ±4/1000 | ー |
| R2 | Radius of curvature of anvils | 1±0.1 mm | 3.17±0.12 mm |
| θ2 | Angle of taper of anvils | 10±1 ° | 0 |
| θ3 | Angle of slope of anvils | 5±1 ° | 0 |
| ー | Angle of supports and anvils | 90±0.1 ° | 90° |
| L | Span between sample supports | 62±(0.5/0) mm | 101.6±0.5 mm |
The shape of the anvil differs between ISO (or JIS) and ASTM standards. Therefore, to perform both ISO and ASTM standardized tests, two different anvils shall be prepared.
| Symbol | Parameter | ISO/JIS | ASTM |
|---|---|---|---|
| ー | Sample angle | 90±2 ° | ー |
| ー | Parallelism with face of reference sample | ±0.025 mm | ー |
| P2 | Horizontality of top surface of vise | ±3/1000 | ー |
| θ2 | Angle between support block and top surface of vise | 90±0.5 ° | ー |
| P3 | Parallelism in horizontal and vertical direction | ±0.05 mm | ー |
| R2 | Top edge radius of support | 0.2±0.1 mm | 0.25±0.12 mm |
In strict terms the anvil shapes differ between ISO (JIS) and ASTM standards, but are sometimes used mutually as the differences are minor.
Need help selecting the right configuration?
Our application specialists are here to help you choosing the best solution for your materials and workflow.
Talk to an expert
Get expert advice on models, accessories and standards.
- 647-948-7714
- info@qmnequipment.com
- Mon-Friday: 9:00am to 6:00pm ET
Need help selecting the right configuration?
Our application specialists are here to help you choosing the best solution for your materials and workflow.
Talk to an expert
Get expert advice on models, accessories and standards.
- 647-948-7714
- info@qmnequipment.com
- Mon-Friday: 9:00am to 6:00pm ET
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