車軸中心部合金超弾性合金素材 3J40

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最後の更新:	2017-07-29 03:58
番号を見る:	361

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車軸中心部合金超弾性合金素材 3J40

PrecisionAlloy3J40

ショック-proofandamp;WearResistantaxle-centrealloy(YB/T5243-1993)

使用法: Itisappliedtoproducetheaxle-centreofinstrumentandmeteraswellastheaxle-centreofthestaff

GradeandChemicalComposition(seeTable1)

Table1GradeandChemicalComposition

MechanicalProperty(seeTable2)

Table2MechanicalProperty

像	VickersHardness ・ HV		CommendedHeat 治療			BendTestTheradiusof themandrelis twiceasthediameter ofthealloy
	私	Ⅱ		Ⅲ
ColdDrawing	450~510					Bend90degrees。 Nocracksandbroken ontheoutsideofthebending
ColdDrawnandamp;高齢化	780~830	andgt; 830 〜 880		andgt; 880	480 ~ 540 ° C Keepwarmfor5h

Note:1.Thedefaulthardnessclassificationofthealloywireincolddrawingandamp; agingstatusisclassII。

PhysicalProperty(seeTable3—Table5)

Table3CoefficientofLinearExpansion

状態	CoefficientofLinearExpansion/(10^-6/K)。
状態	20 〜 55 ° C	20 ~ 100 ° C	20 〜 200 ° C	20 ~ 300 ° C	20 ~ 400 ° C	20 ~ 500 ° C
固溶	12.2~12.7	12.4~12.5	12.6~12.8	13.0~13.1	13.5~13.6	13.8~14.0
SolidSolutionandamp; 高齢化	11.0~11.5	11.9~12.0	12.0~12.2	12.4~12.5	12.7~12.8	13.1~13.3
ColdDrawnandamp; 高齢化	11.6	12.0	12.1	12.4	12.8	13.3

Table4ModulusofElasticityandamp;FrequencyTemperatureCoefficient

状態	ModulusofElasticity	TemperatureCoefficientβf/(10^-6° C)		MechanicalQuality FactorQ20 ° C
状態	ModulusofElasticity	20 ~-40 ° C	20 ~ 100 ° C	MechanicalQuality FactorQ20 ° C
固溶 + 80% 入れなければ	176500~196000
固溶 + 80% 入れなければ + Aging5h	225500~235500	-103~-106	-104~-110	49000~51000

Table5MagneticSusceptibilityandamp;比抵抗