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MAR-M Hf mod.

Data Table for:High alloy:MAR-M Hf mod.

Steel grade type	High alloy:
Standard
Production specifications	Steel plate,Sheet, Coil,Flat bar,Round bar, Strip steel,wire,All kinds of forgings.
Mchining	Turning Milling Grinding Deep hole drilling: length max 9.8 meters.
Range of work	Round bar steel: 1mm to 2000mm Square-shape steel: 10mm to 1000mm steel Plate/sheet:0.08mm to 800mm Width: 10mm to 1500mm Lenth: We can supply any lenth based on the customer's requirement. Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes Tubings: OD: φ4-410 mm, with wall thickness ranging from 1-35 mm.
Heat treatment	Normalizing,Annealing,Tempering,Quenching,Hardening and tempering,Seasoning,Surface hardening,Carburizing

MAR-M Hf mod. Chemical composition and Mechanical properties

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.13-0.17	0.2	0.2		0.015	8-10	...
Mo	Al	Cu	Nb	Ti	V	Fe
2.25-2.75	5.25-5.75	0.1		1.25-1.75		0.1
N	Co	Pb	B	Other	Hf
	9-10		0.01-0.02	W 9-11 Ta 1.25-1.75 Zr 0.03-0.08	1.5-2.0

Mechanical Properties

Properties		Conditions
Properties		T (°C)	Treatment
Density (×1000 kg/m3)	7.7-8.03	25
Poisson's Ratio	0.27-0.30	25
Elastic Modulus (GPa)	190-210	25
Tensile Strength (Mpa)	1158	25	oil quenched, fine grained, tempered at 425°C
Yield Strength (Mpa)	1034
Elongation (%)	15
Reduction in Area (%)	53
Hardness (HB)	335	25	oil quenched, fine grained, tempered at 425°C

Thermal Properties

Properties		Conditions
Properties		T (°C)	Treatment
Thermal Conductivity (W/m-K)	42.7	100
Specific Heat (J/kg-K)	477	50-100

Physical Properties

Quantity	Value	Unit
Thermal expansion	16 - 17	e-6/K
Thermal conductivity	16 - 16	W/m.K
Specific heat	500 - 500	J/kg.K
Melting temperature	1370 - 1400	°C
Service temperature	0 - 500	°C
Density	8000 - 8000	kg/m3
Resistivity	0.7 - 0.7	Ohm.mm2/m

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