UNI 9 SMnPb 23

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#UNI # #9

Description

UNI 9 SMnPb 23 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: UNI 9 SMnPb 23

Category	Type	Steel Grade
Steel Grades	Carbon Steel	UNI 9 SMnPb 23
		FCDA-NiMn23-4
		FCDA-NiCr30-1
		FCDA-NiCr30-3
		FCDA-NiSiCr30-5-2
		FCDA-NiSiCr30-5-5
		FCDA-Ni35
		FCDA-NiCr35-3
		FCDA-NiSiCr35-5-2
		UNI 10 S 20
		UNI 9 SMn23

Chemical composition(mass fraction)(wt.%) of the UNI 9 SMnPb 23

Element	Weight %
C	0.15 (max)
Mn	0.85-1.15
P	0.04-0.09
S	0.26-0.35
Pb	0.15-0.35

Mechanical Properties of steel grade UNI 9 SMnPb 23

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)
358 (≥)	998 (≥)	33	14	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	132

Physical Properties of steel grade UNI 9 SMnPb 23

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
32	-	-			0.11	-
969	944	-	23.3	442		-
311	-	21	42.2			234	424

Heat Treatment of steel grade UNI 9 SMnPb 23

Heat treated : 1664°C - 1764°C

Technological Curves of steel grade UNI 9 SMnPb 23

No Curve

Cross Reference Table (Equivalent Grade) of UNI 9 SMnPb 23

Grade	Standard	Country	Application
UnitempAF2-1		USA	Martensitic special steel
UnitempHS	AISI	USA	Martensitic special steel
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar

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