STANDARD ALLOYS INDIAAustenitic manganese steel
The standard for jaw plates; 18% and 22% manganese types for hard, abrasive rock with strong impact.
ASTM A128 · IS 276 · EN 10349
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Jaw and side plates
The jaw plates do the crushing; the side plates protect the frame. The tooth profile and how well the steel work-hardens decide the product size and the tonnes between changes.
- Works in
- Fixed and swing jaws and the cheek plates that protect the frame, in jaw crushers.
- Industries
- Mining, Aggregate, Cement
- Materials
- Manganese steel
- 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
Simplified 3D model · drag to turn
01
How it fails and what we do about it
- 01Tooth wear and loss of nipProfile held to drawing, so the nip angle is kept.
- 02Cracking or breakageThe right manganese content and a fast water quench for full toughness.
- 03Wear concentrated low in the jawPlates made reversible where the design allows; other tooth profiles on request.
02
Choosing the grade
Typical values from the governing standards. A metallurgist confirms the grade for your duty with every quotation.
03
What we control
- Profile to drawingPatterns made from the drawing or from a worn sample and kept on file for repeat orders.
- Fast quenchManganese parts go from furnace to water in about 45 seconds for full toughness.
- Machined seatsSeating faces and bores turned on vertical lathes, then checked with gauges.
- Surface checkedDye penetrant on manganese steel; magnetic particle and ultrasonic testing on structural steel.
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.
Jaw and side 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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