STANDARD ALLOYS INDIAAustenitic manganese steel
Heavy impact from large feed.
ASTM A128 · IS 276 · EN 10349
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Impact plates
Impact plates take the rock thrown off the rotor and, with the blow bars, set the product size. Their wear changes the crushing gap, so even wear matters as much as long wear.
- Works in
- Impact aprons and curtain liners of horizontal-shaft impact crushers.
- Industries
- Aggregate, Cement
- Materials
- Manganese steel, Cr-Mo steel, High-chromium iron
- Size
- Single pieces from 3 kg to 7 tonnes, to drawing
- Supplied
- As cast, or machined to drawing
- Inspection
- Chemistry and hardness on every heat; UT, MPI or DPT and a dimensional report as specified
- From a worn part
- Yes. Send the part or photographs with key dimensions and we will reverse-engineer it
01
How it fails and what we do about it
- 01Wear in the main impact zoneGrade matched to the feed and to the blow bar alloy.
- 02Cracking under heavy impactA tougher grade, with sound sections designed into the method.
- 03Wear around fixingsFixing points cast or machined to drawing.
02
Choosing the grade
Typical values from the governing standards. A metallurgist confirms the grade for your duty with every quotation.
Cr-Mo and martensitic steels
General duty with moderate abrasion.
IS 4896 · Customer specification
High-chromium white iron
Abrasive feed of controlled size.
ASTM A532 Class II and III · IS 4771 · ISO 21988 / EN 12513
03
What we control
- Grade set by the dutyFeed size, abrasiveness and the risk of tramp metal decide the alloy, not habit.
- Fast quenchManganese parts go from furnace to water in about 45 seconds, so carbides stay in solution.
- Tested every heatChemistry by spectrometer and hardness on every heat; tensile and impact tests as specified.
- Fit where it mattersPin bores, seats and clamping faces machined to drawing.
04
For a quotation, send any of these
- Equipment make and model, or the OEM part number
- Drawing, or the worn part or photographs with key dimensions
- The grade used today and the life it gives
- Quantity per set and sets per year
No drawing? Send the worn part or photographs with key dimensions and we will reverse-engineer it.
Impact plates
A metallurgist reviews every enquiry and replies with a price, a lead time or the right questions.
Or call +91 145 269 5110
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