Cr30Mo2

The early high-purity HuaNickel Cr30Mo2 is a super ferritic stainless steel with C+N≤150ppm produced by double vacuum smelting process.

Cr30Mo2Chemical composition：

	Cr	Mo	C	Si	Mn	N
Min	29	1.8	≤
Max	31	2.2	0.01	0.2	0.1	0.012

Cr30Mo2 Physical properties：

Densityp  /g·cm-3	Linear expansion coefficientg/℃-1 (20～100℃)	Thermal conductivityA/ W·(m·K)-1100℃	Specific heat capacityc /J·(kg·℃)-1	Resistivity/μΩ ·cm (20℃)
7.6	9.85×10~6	17.9	0.46×10~6	64

Cr30Mo2Mechanical properties：

Materials and Condition	Plate and tube specifications	σp0.2/MPa	σb/MPa	δ/%	ψ/%	Hardness (HV)
HighpurityCr30Mo2Annealed state(900℃× 10～15min,Water)	Hot rolled plate8mm	329～588	529～676	21～22	66～70	190～280
	Cold-rolled plate3mm	392～894	539～863	32	53～72	180～300
	After the cold-rolled plate is welded	392～412	539～559
00Cr30Mo2TiNb Annealed state	Cold-rolled plate1.5mm	431	568	28		192
	Pipe wall thickness2mm	560	610	37		205

Cr30Mo2Alloy properties：

High-purity HuaNickel Cr30Mo2 is a typical high-chromium-molybdenum ferritic stainless steel, their microstructure is a pure ferrite structure with body-centered cube, and there are α’ phases and σ(x) intermetallic phases and carbon and nitride phases on the matrix during aging.

Cr30Mo2Uses of alloys：

It can be used as a heat exchange equipment for cooling agent in water medium (including seawater) containing Cl-; It can be used for evaporators in the diaphragm alkali production process, acetic acid, urea-resistant devices and components, roofs (including eaves), curtain walls and various decorative materials for large coastal buildings (airports, restaurants, large landmark buildings, etc.).

Cr30Mo2Process performance：

Welding process: high-purity Cr30Mo2 has good weldability, no intergranular corrosion tendency after welding, and there is no obvious difference in corrosion resistance before and after welding in some corrosive media.

Heat treatment: The heat treatment process of high-purity HuaNickel Cr30Mo2 steel is 900~1050°C heating, heat preservation and quenching.

Relevant standards：

GB/T 1220-1992