Toolox 33

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TOOLOX®33 is a quenched and tempered tool steel designed to have low residual stresses. It is characterized by its extremely good machinability and is pre-hardened to 33 HRC. The steel has excellent polishing and photoetching properties. Applications include:

Plastic molds
Rubber molds
Bending tools
Machine components

Features

Especially suited for plastic molds and rubber molds, having excellent polishing and photoetching ability.
Supplied in plate thickness 3/4” – 5 1/8”.
Hardness 30-35 HRC.

Specifications

Hardness (guaranteed values)	HBW 280-330 (Approx. 30-35 HRC)
Impact properties (guaranteed values)	Testing temperature °C 20-400°C Impact energy, Charpy-V, longitudinal direction; min. ft. lbs. < 74-133
Tensile properties (calculated values)	Tensile strength approx. 130 – 142,000 PSI
Milling (calculated values)	At cutting speed of 300 m/mm, feed 0.15 mm, 10 min. effective cutting time using a Sandvik Coromil 200 and inserts GC 1025 We guarantee max 0.3 mm edge wear
Ultrasonic insp. (guaranteed values)	Discontinuities giving echoes at least equivalent in amplitude to flat bottom hole 1.5 mm shall be reported according to SSAB Standard V6
Etching properties (guaranteed values)	TOOLOX 33 fulfills the demands according to NADCA 207-97
Dimensions (preliminary)	TOOLOX 33 is supplied in plate thickness 3/4” – 5 1/8”
Delivery condition	Quenched and tempered at min. 590°C
Heat treatment	TOOLOX 33 is not intended for further heat treatment. If TOOLOX 33 is subjected to any heat treatment above 590°C, after delivery from SSAB Oxelösund AB, no guarantees concerning the properties of the material will be given.
Testing	Testing in accordance with EN 10 137-1, 10 137-2 and EN ISO 6506-1 Hardness measured on a milled surface, 0.5-2 mm below surface
Tolerances	According to EN 10 029: Thickness tolerances to Class C Flatness tolerances to Class N, steel type L
Surface finish	According to EN 10 163-2: Surface requirements to Class B Repair conditions to Subclass 3

Technical Information (Typical Values)

Chemical Composition (typical values)

C	Mn	P	S	Si	Cu	Ni	Cr	Mo	B	*C.E. (typical)**
0.32	1.25	0.01	0.01	0.45	0.25	0.75	0.65	0.55	0.0	0.59

Compressive Strength (typical values)

Yield Strength	[PSI]
at +20°C	127,721
at +200°C	108,853

Inclusions (typical values)

Inclusion Size (equiv. diam)	6μm
Area faction	0.015%
Aspect ratio	1.2

Mechanical Properties (converted from metric)

	+20°C	+200°C	+300°C	+400°C
Tensile Strength [PSI]	142,137	150,554
Elongation, A5 [%]	15	12
Compressive Yield
Strength	116,030 PSI	168,771 PSI	110,505 PSI	15,573 PSI
Impact Energy [ft lbs]	74	125	103	120
Hardness [HRC]	30