Boron steel | Hagane Company

Supported standards	AICHI SAE, ASTM and EN standards are also supported.
Names of steel types	10B33M, SMnB440 - SMnB445

Product catalog

Features

Type of steel/Chemical composition

Type of steel	Main chemical components representative values (%)					Characteristics
Type of steel	C	Si	Mn	Cr	B	Characteristics
10B33M	0.33	0.25	0.8	≦0.2	Additives	Better cutting, cold processing properties than S45C Achieve equal or better strength than S45C through deep hardening with induction quenching
SMnB440	0.40	0.25	1.5	0.2	Additives	Equal induction quenching, mechanical and fatigue strength properties to SCM440
SMnB445	0.45	0.25	1.5	0.2	Additives

10B33: improved manufacturing of induction quenched parts using S45C, S48C and effective stabilization of part strength.
MnB series: Using steel alloys equivalent to SCM440 is effective at reducing material costs for parts.

Advantages

(1): Adding minor amounts of boron increases hardenability. These alloy-saving structural steels can reduce resource risk and cost.
(2): High hardenability enables deep hardening by induction quenching and ensuring the strength of the product.
(3): Compared with alloy steels with equivalent hardenabilty, the hardness after rolling or normalizing etc. becomes lower, which can improve the cold forgeability and machinability.

Major applications

Automotive/Truck:: CVJ intermediate shafts, rear shafts, etc.

Product inquiries

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TEL +81 (52) 603-9362

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