Name: 22MnB4 冷镦钢丝
Brand: Shanghai Creation Group Co., Ltd.

Heat-treatment condition at delivery	Symbol	Products form a			Applicable requirements in cases where the steel concerned has been ordered with reference to the steel names indicated in
Heat-treatment condition at delivery	Symbol	Wire rod	Bar	Wire	T a b les B. 2,B.3,B.4 or B.5		Ta bles B. 2,B.3,B.4,B.5,B.6 or B,7			Optional
As hot-rolled or peeled	+AR or +PE	X	X	X	Chemical composition as specified in Table B.2	Mechanical properties as specified in Ta b le s B.3 ,B.4 and B.5	Chemical compositior as specified in Table B.2	Mechanical properties as specified in Tables B,3, B.4 and B.5	Values for hardenability according to Ta ble s B.6 and B.7	Supplementa- ry or special requirements as specified in Annex Eh
Cold drawn	+AR+C	-	X	X
Cold drawn + spheroidized	+AR+C+AC	-	X	X
Cold drawn + spheroidized+skin passed	+AR+C+AC +LC	-	X	X
Spheroidized or spheroidized+peeled	+AC or +AC +PE	X	X	X
Spheroidized+cold drawn	+AC+C		X	X
Treated to ferrite- pearlite structure and hardness range	+FP	-	X	-
Others	Other delivery conditions may be agreed at the time of ordering
a X=applicable,-=not applicable. b If agreed at the time of the enquiry and order.

Steel name	Diameter		Delivery condition
	Diameter		+AR		+AC or +AC+PE		+AR+C		+AR+C+AC		+AR+C+AC+LC		+AC+C
	above mm	up to mm	Rm max. MPa	Za min %	Rm max. MPa	Z min. %	Rm max. MPa	Z min %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %	Rm max. MPa	Z min. %
22MnB4	2	5		—	—				520	64	560	62		—
	5	10	600	55	520	62	720	53	500	64	540	62	630	59
	10	40	600	55	520	62	710	53	500	64	540	62	620	59
a The values are given only for information.

Steel name	Symbol	Austenitizing temperature ℃±5℃	Limits of range	Hardness HRC at a distance from quenched end of test piece(in mm)of
Steel name	Symbol	Austenitizing temperature ℃±5℃	Limits of range	1,5	3	5	7	9	11	13	15	20	25	30	35	40
22MnB4	+H	880	max.	49	48	47	45	42	39	35	32	24	20		—
22MnB4	+H	880	min.	43	41	40	32	23			—	—	—		—

22MnB4 冷镦钢丝

材料技术参数