China Manufacturer Uns N10665/Ns322/Nimo28/W. N. R. 2.4617/ Hastelloy B-2 Low Price

• Customization: Available
• Product Type: Wire
• Carbon Content: Low Carbon
• Model NO.: Hastelloy B-2
• Condition: Bright, Annealed
• Price: Low
• Quality: High
• Surface: Smooth
• Transport Package: in Spool, Carton, Wooden Case
• Specification: Customized
• Trademark: Ualloy
• Origin: China
• Production Capacity: 500 Tons/Year
• Package Size: 50.00cm * 40.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

Hastelloy B-2 features and application field overview:

The content of carbon and silicon in Hastelloy B-2 is very low, which reduces the precipitation of carbon and other impurities in the heat-affected zone of welding, so the welding seam has enough corrosion resistance. Hastelloy B-2 has good corrosion resistance in reducing media, such as hydrochloric acid solutions at various temperatures and concentrations. It is also resistant to corrosion in a medium concentration of sulfuric acid (or a solution containing a certain amount of chloride ions). It can also be used in acetic acid and phosphoric acid environments. Alloy materials have the best corrosion resistance only when they are in a suitable metallographic state and have a pure crystal structure. It is widely used in chemical, petrochemical, energy manufacturing and pollution control, especially in sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries.

 Similar brand:

NS322 (China), NiMo28 (France), w.n.r.2.4617 (Germany)

 

Chemical composition

 

Alloy brand	%	Ni	Cr	Fe	Mo	Co	C	Mn	S	Cu
Hastelloy B-2	Min.	Bal.	0.4	1.6	26.0
	Max.		1.0	2.0	30.0	1.0	0.01	1.0	0.01	0.5

Physical properties:

Density g/cm3	Melting ºC	Thermal conductivity λ/(W/m•ºC)	Specific heat capacity  J/kg•ºC	Modulus of elasticit GPa	Resistivity μΩ•m	Coefficient of linear expansion  a/10-6ºC-1
9.2	1330 1380	11.1(100ºC)	377	217	1.37	10.3(20~100ºC)

 

Mechanical properties :(minimum value of mechanical properties at 20ºC)

Heat treatment method	tensile strength b/MPa	yield strength p0.2/MPa	elongationσ5 /%	Hardness    HBS
Solution treatment	745	325	40	≥250

 

 

Production execution standard:

Standard	bar	forging	plate (strip)	wire	pipe
USA association  for materials    and testing	ASTM B335	ASTM B335	ASTM B333		ASTM B622 ASTM B619 ASTM B626
USA technical specification for aerospace materials
USA society of mechanical engineers	ASME SB335	ASME SB335	ASME SB333		ASTM SB622 ASTM SB619 ASTM SB626

 

Metallographic structure:

Hastelloy b-2 is a face centered cubic lattice structure. By controlling the content of iron and chromium at the minimum value, the processing brittleness was reduced and the precipitation of Ni4Mo phase was prevented between 700 ºC and 870ºC.

 

Process performance and requirements:

1. It shall be heated to the required temperature as soon as possible. The hot working temperature ranges from 1160ºC to 900ºC.

2. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging piece.

3, the alloy surface oxide, oxidation color and welding slag around the weld adhesion is stronger than stainless steel, the use of fine grain sand belt or fine grain grinding wheel is recommended.

4, the alloy should be machined after annealing, due to the high rate of machining hardening of the material, so it is appropriate to use lower cutting speed and heavy feed than machining lower alloy standard austenitic stainless steel for machining, in order to cut into the surface layer of cold work hardening.