19 9Nb

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#19 # #9Nb

Description

19 9Nb Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 19 9Nb

Category	Type	Steel Grade
Steel Grades	Mould Steel	19 9Nb
		19 1 2 3nC
		1.4430
		18 15 3nC
		18 17 5nC
		1.4440
		18 20 2CuNb
		20 16 3Mn6
		1.4455
		17
		1.4502

Chemical composition(mass fraction)(wt.%) of the 19 9Nb

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.08	0.90				18.0-21.0	8.0-11.0
Mo	Al	Cu	Nb	Ti	V	Ce
			8*C-1.1
N	Co	Pb	B	Other	AWS(A5.4)
					E437-15

Mechanical Properties of steel grade 19 9Nb

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
839 (≥)	753 (≥)	32	44	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	233

Physical Properties of steel grade 19 9Nb

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
33	-	-			0.41	-
862	826	-	43.3	333		-
172	-	14	31.2			412	122

Heat Treatment of steel grade 19 9Nb

Heat treated : 1254°C - 1429°C

Technological Curves of steel grade 19 9Nb

No Curve

Cross Reference Table (Equivalent Grade) of 19 9Nb

Grade	Standard	Country	Application
Q195		China	Engineering and welding
UNS G10190	UNS	USA	General use carbon steel bar
ASTM 1019	ASTM	USA	General use carbon steel bar
H19	ASTM	USA	Alloy tool steel
T20819	UNS	USA	Alloy tool steel
T41902	UNS	USA	Alloy tool steel
T41904	UNS	USA	Alloy tool steel
T41905	UNS	USA	Alloy tool steel
T41906	UNS	USA	Alloy tool steel
T41907	UNS	USA	Alloy tool steel
CPM H19	AISI	USA	Powder metallurgy tool steel Hot work tool steels
CPM H19V	AISI	USA	Powder metallurgy tool steel Hot work tool steels
Stellite 19			Stellite alloy
Stellite 190			Stellite alloy
Stellite 190PM			Stellite alloy
1.2319	DIN	Germany	Cold working alloy tool steel
1.2419	DIN	Germany	Cold working alloy tool steel
1.2519	DIN	Germany	Cold working alloy tool steel
X19NiCrMo4	DIN	Germany	Cold working alloy tool steel
BH19			Carbide for cutting tools

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