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Hastelloy B2 Fasteners Supplier

Hastelloy B2 fasteners are a class of high-performance fasteners designed for use in extreme temperatures and harsh environments. These fasteners are made from a unique nickel-based superalloy with excellent corrosion resistance and high-temperature stability. ASTM B574 B2 Hastelloy Fasteners are widely used in various industries, including chemical processing, petrochemicals & marine environments, where their exceptional properties are critical for high-stress applications.

Hastelloy B2 Fasteners are known for their superior corrosion resistance properties. This material resists a wide range of acids, alkalis & salts. It also resists corrosion in high chloride environments & aqueous media. These fasteners can withstand temperatures up to 1,025°F (550°C), making them ideal for high-temperature environments.

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Nickel Alloy B2 Fasteners are also easy to fabricate and have excellent weldability. Their ductility and malleability make them suitable for complex designs and custom fastening solutions. They are available in various shapes & sizes, making them flexible enough for various applications.

The exceptional properties of B2 Hastelloy Fasteners make them widely used in the chemical and petrochemical industries. They are commonly used in reactor vessels, evaporators, and heat exchangers, where they resist corrosion from strong acids and other corrosive chemicals. At Neelkamal Alloys LLP, we offer a variety of high-quality Hastelloy Products, including Hastelloy B3 FastenersHastelloy X Fasteners and more.

These UNS N10665 Fasteners are also well-suited for marine environments, particularly in saltwater applications also they can withstand the harsh conditions of seawater corrosion & are widely used in marine pumps, valves, & fittings.

Hastelloy 2.4617 Fasteners are also an excellent choice for high-temperature environments, such as exhaust systems in gas turbines & aircraft engines. Their high-temperature stability makes them ideal for these applications, where they can withstand thermal shock & high-stress conditions.

The benefits of Hastelloy Alloy B2 Fasteners are significant. They are durable, corrosion-resistant & can withstand high temperatures, making them ideal for extreme environments and complex applications. We offer a wide range of products, including Monel K500 PipesTitanium Stud Bolts, & many more

Alloy B2 Fasteners are an excellent choice for a wide range of applications that require high-stress performance and exceptional corrosion resistance. These Hastelloy N10665 Fasteners are widely used in chemical processing, petrochemicals & marine industries & are also a popular choice for high-temperature applications.

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Specification For Hastelloy B2 Fasteners

StandardASTM B574 / ASME SB574
Bolt / Screw SizeM3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts SizeM3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers SizeM3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws SizeM1.6 – M12
Self Tapping Screw SizeNo.2 – No. 14
Length3 mm to 200 mm
ThreadsUNF, BSW, BSF, METRIC, UNC, or as required
Fasteners
  • DIN : DIN 934, DIN 931, DIN 970, DIN 933
  • UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
  • ISO : JIS standards, ISO 4033, ISO 4032,
  • ANSI – American National Standards Institute
  • ASME B18.5
  • ANSI B 28.2.4 1M
  • as per defined in ASME B16.5 standard Alloy B2 Stud Bolt length
  • ANSI B 18.2.4 2M
  • as per defined in ASME B18.2.2 Hastelloy B2 Hex nuts
FormHex, Threading, Square, Round as per Gauge Etc.
Raw materials SourceJSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
Threads ConfigurationASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
CertificationDual Certified As per ASTM & ASME Codes
DimensionsDIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
ThreadsUnless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificateas per EN 10204 / 3.1 Manufacturer Test Certificate
Additional CertificationsPED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production processM24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC
Hastelloy B2 Fasteners

Equivalent Grades Of Hastelloy B2 Fasteners

STANDARD WERKSTOFF NR. UNS
Hastelloy B2 2.4617 N10665

ASTM B574 B2 Hastelloy Fasteners Chemical Composition

Grade C Mn Si S Co Ni Cr Fe Mo P
B2 0.02 max 1.0 max 0.1 max 0.03 max 1.0 max Bal 1.0 max 2.0 max 26 – 30 0.04 max

B2 Hastelloy Fasteners Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Hastelloy B2 9.2 g/cm3 1370 °C (2500 ºF ) Psi – 1,10,000 , MPa – 760 Psi – 51000 , MPa – 350 40 %

Hastelloy B2 Hex Bolt Dimension

NOMINAL SIZE (D)BODY DIAMETER HEAD THICKNEASTM  ACROASTM  THE FLATS ACROASTM CORNERS 
 D (MAX)D (MIN)H (MAX)H (MIN)F (MAX)F (MIN)C (MAX)C (MIN)
m1010.009.786.636.1717.0015.7318.4817.77
m1212.0011.737.764.2419.0017.7320.7820.03
m1414.0013.739.098.5122.0020.6724.2523.35
m1616.0015.7310.329.6824.0023.6727.7126.75
m2020.0019.6712.8812.1230.0029.1634.6432.95
m2424.0023.6715.4414.5636.0035.0041.5739.55
m3030.0029.6719.4817.9246.0045.0053.1250.85
m3636.0035.6123.3821.6355.0053.8063.5160.79
m4242.0041.3826.9725.0365.0062.9075.0671.71
m4848.0047.3831.0728.9375.0072.6086.6082.76
m5656.0055.2636.233.8085.0082.2098.1593.71
m6464.0063.2641.3238.6895.0091.80109.70104.65
m7272.0071.2646.4543.55105.00101.40121.24115.60
m8080.0079.2651.5848.42115.00111.00132.72126.54
m9090.0089.1357.7454.26130.00125.50150.11143.07
m10090.0099.1363.960.10145.00140.00167.43159.60

Size Chart of B2 Hastelloy Nuts

Nut Size (mm)
Diameter* (mm)
Height (mm)
Hex Nut
Jam Nut
Nylock Nut
2mm
4
1.6
1.2
2.5mm
5
2
1.6
3mm
5.5
2.4
1.8
4
4mm
7
3.2
2.2
5
5mm
8
4
2.7
5
6mm
10
5
3.2
6
7mm
11
5.5
3.5
8mm
13
6.5
4
8
10mm
17
8
5
10
12mm
19
10
6
12
14mm
22
11
7
14
16mm
24
13
8
16
18mm
27
15
9
18.5
20mm
30
16
10
20
* This is the diameter across the flats. It is also the size of wrench to use.

Dimensions of Hastelloy B2 Heavy Hex Nuts

Nominal Size or Basic Major Thread Diameter
F
G
H
Width Across Flats
Width Across Corners
Thickness
Basic
Max
Min
Max
Min
Basic
Max
Min
1/4
.2500
1/2
.500
.488
.577
.556
15/64
.250
.218
5/16
.3125
9/16
.562
.546
.650
.622
19/64
.314
.280
3/8
.3750
11/16
.688
.669
.794
.763
23/64
.377
.341
7/16
.4375
3/4
.750
.728
.866
.830
27/64
.441
.403
1/2
.5000
7/8
.875
.850
1.010
.969
31/64
.504
.464
9/16
.5625
15/16
.938
.909
1.083
1.037
35/64
.568
.526
5/8
.6250
1-1/16
1.062
1.031
1.227
1.175
39/64
.631
.587
3/4
.7500
1-1/4
1.250
1.212
1.443
1.382
47/64
.758
.710
7/8
.8750
1-7/16
1.438
1.394
1.660
1.589
55/64
.885
.833
1
1.0000
1-5/8
1.325
1.575
1.876
1.796
63/64
1.012
.956
1-1/8
1.1250
1-13/16
1.812
1.756
2.093
2.002
1-7/64
1.139
1.079
1-1/4
1.2500
2
2.000
1.938
2.309
2.209
1-7/32
1.251
1.187
1-3/8
1.3750
2-3/16
2.188
2.119
2.526
2.416
1-11/32
1.378
1.460
1-1/2
1.5000
2-3/8
2.375
2.300
2.742
2.622
1-15/32
1.505
1.433
1-5/8
1.6250
2-9/16
2.562
2.481
2.959
2.828
1-19/32
1.632
1.556
1-3/4
1.7500
2-3/4
2.750
2.662
3.175
3.035
1-23/32
1.759
1.679
2
2.0000
3-1/8
3.125
3.025
3.608
3.449
1-31/32
2.013
1.925
2-1/4
2.2500
3-1/2
3.500
3.388
4.041
3.862
2-13/64
2.251
2.155
2-1/2
2.5000
3-7/8
3.875
3.750
4.474
4.275
2-29/64
2.505
2.401
2-3/4
2.7500
4-1/4
4.250
4.112
4.907
4.688
2-45/64
2.759
2.647
3
3.0000
4-5/8
4.625
4.475
5.340
5.102
2-61/64
3.013
2.893
3-1/4
3.2500
5
5.000
4.838
5.774
5.515
3-3/16
3.252
3.124
3-1/2
3.5000
5-3/8
5.375
5.200
6.207
5.928
3-7/16
3.506
3.370
3-3/4
3.7500
5-3/4
5.750
5.562
6.640
6.341
3-11/16
3.670
3.616
4
4.0000
6-1/8
6.125
5.925
7.073
6.755
3-15/16
4.014
3.862

Hastelloy B2 Hex Nuts Dimension

Nominal Size or Basic Major Thread Diameter
F
G
H
Width Across Flats
Width Across Corners
Thickness
Basic
Max
Min
Max
Min
Basic
Max
Min
1/4
.2500
7/16
.438
.428
.505
.488
7/32
.226
.212
5/16
.3125
1/2
.500
.489
.577
.557
17/64
.273
.258
3/8
.3750
9/16
.562
.551
.650
.628
21/64
.337
.479
7/16
.4375
11/16
.688
.675
.794
.768
3/8
.385
.365
1/2
.5000
3/4
.750
.736
.866
.840
7/16
.448
.427
9/16
.5625
7/8
.875
.861
1.010
.982
31/64
.496
.473
5/8
.6250
15/16
.938
.922
1.083
1.051
35/64
.559
.535
3/4
.7500
1-1/8
1.125
1.088
1.299
1.240
41/64
.665
.617
7/8
.8750
1-5/16
1.312
1.269
1.516
1.447
3/4
.776
.724
1
1.0000
1-1/2
1.500
1.450
1.732
1.653
55/64
.887
.831
1-1/8
1.1250
1-11/16
1.688
1.631
1.949
1.859
31/32
.999
.939
1-3/8
1.3750
2-1/16
2.062
1.994
2.382
2.273
1-11/64
1.206
1.138
1-1/2
1.500
2-1/4
2.250
2.175
2.598
2.480
1-9/32
1.ASTM A194 GR. 8
1.245
1-5/8
1.6250
2-7/16
2.438
2.356
2.815
2.686
1-25/64
1.429
1.353
1-3/4
1.7500
2-5/8
2.625
2.538
3.031
2.893
1-1/2
1.540
1.460
2
2.0000
3
3.000
2.900
3.464
3.306
1-23/32
1.763
1.675
2-1/4
2.2500
3-3/8
3.375
3.263
3.897
3.719
1-15/16
1.986
1.890
2-1/2
2.5000
3-3/4
3.750
3.625
4.330
4.133
2-5/32
2.209
2.105
2-3/4
2.7500
4-1/8
4.125
3.988
4.763
4.546
2-3/8
2.431
2.319

Various Types of Hastelloy B2 Fasteners

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