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Hastelloy B2 Alloy Round Bar

Hastelloy B2 round bar is a corrosion-resistant alloy (nickel-molybdenum mixed crystal) with proven minimum iron and chromium contents. It exhibits excellent reduction resistance, resistance to a wide range of organic acids, and good resistance to hydrochloric acid over a wide range of concentrations and temperatures.

Hastelloy B2 round bar exhibits good tensile and crevice corrosion resistance due to its low carbon and silicon contents (which reduce carbide precipitation in the heated weld zone), providing adequate corrosion resistance even in the welded state.

Hastelloy B2, also known as Alloy B2, is a nickel-molybdenum solid solution-hardening alloy that increases strength at high temperatures. Molybdenum, as an alloying element, provides excellent reduction resistance and prevents the formation of grain boundary carbide precipitation in the heat-affected zone.

Hastelloy B2 is a grade of Hastelloy, a nickel-molybdenum alloy. There are many different grades of Hastelloy, including B2. Each grade is optimized for specific applications. Molybdenum makes Hastelloy harder and stronger at high temperatures. This alloying element and the properties it imparts to the material also make it well-suited for welding applications. These nickel alloys are easy to fabricate and form. They also have good ductility and are capable of cold working. All Hastelloy grades are considered corrosion-resistant alloys because each grade exhibits excellent resistance to a wide range of corrosive environments. Hastelloy's excellent resistance to strong oxidizing corrosives, such as oxidizing salts and reducing agents, makes it an ideal alloy for applications in moderately to severely corrosive environments.

Hastelloy B2 Round Bar Specification

Specifications : ASTM B335 / ASME SB335

Size : 5 mm To 500 mm

Diameter : 0.1 mm to 100 mm

Length : 100 mm To 3000 mm Long & Abov

Form : Round, Square, Hex (A/F), Rectangle Etc.

Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Alloy B2/ B3 Round Bar Sizes

Size & Dimensions of Hastelloy B2 round bar
Metric		US Bar		ASTM/ Canadian		Japanese
Bar Size	Diam. (mm)	Bar Size	Diam. (Inch)	Bar Size	Diam. (mm2)	Bar Size	Diam. (mm)
5	5	#2	0.250	10M	100	6	6
5.5	5.5	#3	0.375	15M	200	10	10
6	6	#4	0.500	20M	300	13	13
7	7	#5	0.600	25M	500	16	16
8	8	#6	0.750	30M	700	19	19
9	9	#7	0.875	35M	1000	22	22
10	10	#8	1.000	45M	1500	25	25
11	11	#9	1.125	55M	2500	29	29
12	12	#10	1.250			32	32
14	14	#11	1.375			35	35
16	16	#12	1.500			38	38
18	18	#13	1.600			41	41
20	20	#14	1.750			44	44
22	22	#15	1.875			48	48
25	25	#16	2.000			51	51
28	28	#18	2.250			57	57
32	32
36	36
40	40
44	44
50	50

Chemical Composition of B2 Hastelloy Round Bars

Grade	Ni	Mo	Cr	Fe	Si	S	Mn	C	P
Hastelloy B2	Bal	26 - 30	1.0	-	0.1	0.03	0.1	0.02	0.04

Mechanical Properties of Hastelloy B2 Round Bars :

Density	Melting Point	Elongation	Yield Strength (0.2%Offset)	Tensile Strength
9.2 g/cm3	1370 °C (2550 °F)	40%	Psi – 52,000 , MPa – 350	Psi – 1,15,000 , MPa –760

About Gnee Steel

Genie Steel is a company specializing in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Genie Steel's products are widely used in aerospace, chemical, electric power, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing inquiries or customized alloy material solutions, please feel free to contact us for a quote.

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