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    Haryana - 124 501, INDIA
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CORPORATE BROCHURE
Hardness Ranges

Hardness Ranges

Hardness Ranges
Grade Symbol of Temper Hardness (in VPN) Grade Symbol of Temper* Hardness (in VPN)
301
½H
¾H
H
EH
310 min.
370 min.
430 min.
490 min.
J-4
½H
¾H
H
 
310 min.
370 min
430 min
 
304
½H
¾H
H
250 min.
310 min.
370 min.
JSLU SD/JSLU DD
½H
¾H
H
310 min.
370 min
430 min
316
½H
¾H
H
250 min.
310 min.
370 min.
JSL AUS / J-1
½H
¾H
H
290 min.
340 min
380 min

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