Woodworking - Grades

TIGRA grade	US-Code	ISO-Code	Binder %	Hardness	Hardness	Bending	strength
				(HV10)	(HRA) +/- 0,2	(N/mm2)	(psi)
T02SMG	C4 +++	K01	2.5	2450	96.5	2000	284.400
T03SMG	C4 ++	K01	3.5	2100	94.6	2400	341.280
T06CR *	C4 +	K01	3.5	1950	93.8	2300	327.060
T08CR *	C4 +	K05-K30	4.0	1900	93.6	2300	327.060
T04F	C4	K05	4.0	1750	92.8	2350	334.170
T04MG	C4 +	K01	4.0	1940	93.8	2600	369.720
T06M	C3 -	K20	6.0	1350	89.8	2400	341.280
T06MF	C3	K20	6.5	1600	92.0	2500	355.500
T06MG	C3 ++	K01-K20	6.0	1800	93.0	2700	383.940
T08MF	C2	K30	8.5	1470	90.8	2700	383.940
T08SMG	C2 +++	K05-K30	9.0	1750	92.8	3400	483.480
T10MF	C1	K40	10.0	1400	90.3	2900	412.380
T10MG	C1 ++	K20-K40	10.0	1650	92.3	3600	511.920
T12SMG	C1 ++		12.0	1750	92.8	4000	568.800
TL15 *			13.5	1450	90.7	3800	540.360
TL20 *			20.0	1400	90.3	3800	540.360

* special binder

	Abbreviation	Explanation	Grain Size
	SMG	Sub Micro Grain	0.5 - 0.7
	MG	Micro Grain	0.7 - 1.0
	F	Fine Grain	1.0 - 1.4
	MF	Medium Fine Grain	1.4 - 2.5
	M	Medium Grain	2.5 - 4.0

Our recommendations for different applications can be found here.