Hastelloy C276 Bolts

  • Home
  • Hastelloy C276 Bolts
Manufacturer, Exporter & Supplier of Hastelloy C276 Bolts

Hastelloy C276 Bolts for Extreme Corrosion & High-Temperature Industrial Applications

Hastelloy C276 bolts are high-performance fastening components manufactured from a nickel-molybdenum-chromium alloy designed to perform in the most chemically aggressive and high-temperature environments. These bolts are widely used in chemical processing plants, marine engineering systems, pollution control equipment, and power generation units where conventional stainless steel fasteners fail due to pitting, crevice corrosion, or stress corrosion cracking.

Hastelloy C276 Bolts Manufacturer

Engineered under ASTM B574 and related international standards, Hastelloy C276 bolts deliver exceptional resistance against oxidizing and reducing media, including chlorides, acids, and seawater exposure. Their mechanical stability under fluctuating thermal conditions makes them a preferred choice for mission-critical assemblies.

KK Fasteners supplies Hastelloy C276 Bolts to global industrial clients with full traceability, precision machining, and compliance with international fastener standards, ensuring consistent performance in high-risk operational environments.

Technical Specification List Of Hastelloy C276 Bolts

Material Hastelloy C276 (UNS N10276), Nickel-Molybdenum-Chromium Alloy
Standards ASTM B574, DIN 933, DIN 931, ISO 4014, ISO 4017
Product Types Hex Head Bolts, Stud Bolts, Socket Head Cap Screws, Threaded Rods
Size Range M3 to M64 | 1/8” to 2.5”
Thread Type Metric (M), UNC, UNF, BSW
Tensile Strength Minimum 690 MPa
Yield Strength Minimum 283 MPa
Hardness 100 – 200 HRB (approx.)
Surface Finish Bright, Pickled, Polished
Coating Options PTFE Coating, Anti-galling Treatment (on request)
Temperature Resistance Up to approx. 538°C (1000°F)

Chemical Composition Of Hastelloy C276 Bolts

Hastelloy C276 Ni C Mo Mn Si Fe P S Co Cr
Balance 0.01 max 15 – 17 1.0 max 0.08 max 4 – 7 0.04 max 0.03 max 2.5 max 14.5 – 16.5

Mechanical Properties Of Hastelloy C276 Bolts

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
8.89 g/cm3 1370 °C (2500 °F) Psi – 52,000 , MPa – 355 Psi – 1,15,000 , MPa – 790 40 %

Equivalent Grades of Hastelloy C276 Bolts

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS OR GOST
Hastelloy C276 N10276 2.4819 NiMo16Cr15W NW 0276 ЭП760 ХН65МВУ

Hastelloy C276 Hex Bolts Dimensions

Hex Bolt Dimension

All measurements in millimeters

NOMINAL SIZE (D)
BODY DIAMETER
BOLT HEAD THICKNESS
ACROSS THE FLATS
ACROSS CORNERS
D (MAX)
D (MIN)
H (MAX)
H (MIN)
F (MAX)
F (MIN)
C (MAX)
C (MIN)
m10
10.00
9.78
6.63
6.17
17.00
15.73
18.48
17.77
m12
12.00
11.73
7.76
4.24
19.00
17.73
20.78
20.03
m14
14.00
13.73
9.09
8.51
22.00
20.67
24.25
23.35
m16
16.00
15.73
10.32
9.68
24.00
23.67
27.71
26.75
m20
20.00
19.67
12.88
12.12
30.00
29.16
34.64
32.95
m24
24.00
23.67
15.44
14.56
36.00
35.00
41.57
39.55
m30
30.00
29.67
19.48
17.92
46.00
45.00
53.12
50.85
m36
36.00
35.61
23.38
21.63
55.00
53.80
63.51
60.79
m42
42.00
41.38
26.97
25.03
65.00
62.90
75.06
71.71
m48
48.00
47.38
31.07
28.93
75.00
72.60
86.60
82.76
m56
56.00
55.26
36.2
33.80
85.00
82.20
98.15
93.71
m64
64.00
63.26
41.32
38.68
95.00
91.80
109.70
104.65
m72
72.00
71.26
46.45
43.55
105.00
101.40
121.24
115.60
m80
80.00
79.26
51.58
48.42
115.00
111.00
132.72
126.54
m90
90.00
89.13
57.74
54.26
130.00
125.50
150.11
143.07
m100
90.00
99.13
63.9
60.10
145.00
140.00
167.43
159.60

Hastelloy C276 Weight Chart

MM THREADS AS PER IS 1363/67
APPROXIMATE WEIGHT IN KGS FOR 100 NOS
LENGTH DIAMETER
M 5 M 6 M 8 M 10 M 12 M 14 M 16 M 18 M 20 M 22
16 mm 0.448 0.743 1.590 3.211
20 mm 0.598 0.812 1.711 3.411 4.892
25 mm 0.660 0.897 1.871 3.660 5.252 8.170
30 mm 0.737 1.010 2.070 3.912 5.574 9.690 10.707 18.657
35 mm 0.804 1.120 2.271 4.223 5.974 10.000 11.416 16.026 19.608
40 mm 0.881 1.230 2.470 4.533 6.410 10.288 12.107 16.667 20.747
45 mm 0.958 1.340 2.671 4.840 6.859 10.504 12.821 17.241 21.739
50 mm 1.030 1.450 2.870 5.155 7.299 11.261 13.624 17.857 22.727 28.409
55 mm 1.560 3.071 5.464 7.740 11.628 14.409 18.868 23.810 30.120
60 mm 1.670 3.270 5.774 8.183 12.255 15.244 20.000 25.126 32.051
65 mm 1.781 3.472 6.083 8.621 12.626 16.026 21.008 26.455 34.014
70 mm 1.890 3.671 6.394 9.058 12.987 16.835 22.124 27.778 35.461
75 mm 2.000 3.873 6.702 9.506 13.228 17.606 23.256 29.070 39.063
80 mm 2.111 4.072 7.013 10.000 13.889 18.248 24.510 30.303 40.000
90 mm 4.472 7.634 10.917 14.925 19.841 26.042 33.113 41.667
100 mm 4.873 8.251 11.820 16.340 21.459 27.778 35.714 46.296
110 mm 8.881 12.723 17.730 23.041 31.250 38.168 47.170
120 mm 9.506 13.624 18.797 24.631 32.895 40.984 50.000
130 mm 10.101 14.535 20.000 26.316 34.722 43.478 52.632
140 mm 10.707 15.432 20.833 27.933 35.461 46.296 55.556
150 mm 11.312 16.340 22.222 29.412 37.594 48.544 58.824
160 mm 11.905 17.241 24.272 31.056 40.984 50.505 61.728
170 mm 12.500 18.116 32.680 53.191 64.935
180 mm 13.123 19.011 26.882 34.247 55.556 67.568
190 mm 13.736 19.920 35.971 58.140 70.423
200 mm 14.327 20.833 29.586 37.594 49.020 60.976 73.529
220 mm 15.528 22.624 40.650 65.789 79.365
240 mm 16.722 24.510 43.860 71.429 84.746
250 mm 17.301 25.381 45.455 74.627 87.719
260 mm 17.921 26.316 47.170 76.923 90.909
280 mm 19.157 28.090 50.505 81.967 98.039
300 mm 20.325 29.940 53.763 87.719 104.167
320 mm 31.646 56.818 92.593
340 mm 33.557 60.241 98.039
360 mm 35.211 63.291 104.167
380 mm 37.037 66.667 108.696
400 mm 39.063 69.444 113.636

ASME SB574 Hastelloy C276 Stud Bolt Size Chart

Class 150 Flanges ASME B16.5 (Stud bolt sizes) Length of Stud Bolts
NPS Outside Diameter of Flange The diameter of Bolt Circle The diameter of Bolt Holes Number of Bolts Diameter of Bolts Raised Face
0.06 in
Ring Joint
1/2 3 1/2 2 3/8 5/8 4 1/2 2 1/4
3/4 3 7/8 2 3/4 5/8 4 1/2 2 1/2
1 4 1/4 3 1/8 5/8 4 1/2 2 1/2 3
1 1/4 4 5/8 3 1/2 5/8 4 1/2 2 3/4 3 1/4
1 1/2 5 3 7/8 5/8 4 1/2 2 3/4 3 1/4
2 6 4 3/4 3/4 4 5/8 3 1/4 3 3/4
2 1/2 7 5 1/2 3/4 4 5/8 3 1/2 4
3 7 1/2 6 3/4 4 5/8 3 1/2 4
3 1/2 8 1/2 7 3/4 8 5/8 3 1/2 4
4 9 7 1/2 3/4 8 5/8 3 1/2 4
5 10 8 1/2 7/8 8 3/4 3 3/4 4 1/4
6 11 9 1/2 7/8 8 3/4 4 4 1/2
8 13 1/2 11 3/4 7/8 8 3/4 4 1/4 4 3/4
10 16 14 3/4 1 12 7/8 4 1/2 5
12 19 17 1 12 7/8 4 3/4 5 1/4
14 21 18 3/4 1 1/8 12 1 5 1/4 5 3/4
16 23 1/2 21 1/4 1 1/8 16 1 5 1/4 5 3/4
18 25 22 3/4 1 1/4 16 1 1/8 5 3/4 6 1/4
20 27 1/2 25 1 1/4 20 1 1/8 6 1/4 6 3/4
24 32 29 1/2 1 1/4 20 1 1/4 6 3/4 7 1/4
Class 300 Flanges ASME B16.5 Length of Stud Bolts
NPS Outside Diameter of Flange The diameter of Bolt Circle The diameter of Bolt Holes Number of Bolts Diameter of Bolts Raised Face
0.06 in
Ring Joint
1/2 3 3/4 2 5/8 5/8 4 1/2 2 1/2 3
3/4 4 5/8 3 1/4 3/4 4 5/8 3 3 1/2
1 4 7/8 3 1/2 3/4 4 5/8 3 3 1/2
1 1/4 5 1/4 3 7/8 3/4 4 5/8 3 1/4 3 3/4
1 1/2 6 1/8 4 1/2 7/8 4 3/4 3 1/2 4
2 6 1/2 5 3/4 8 5/8 3 1/2 4
2 1/2 7 1/2 5 7/8 7/8 8 3/4 4 4 1/2
3 8 1/4 6 5/8 7/8 8 3/4 4 1/4 4 3/4
3 1/2 9 7 1/4 7/8 8 3/4 4 1/4 5
4 10 7 7/8 7/8 8 3/4 4 1/2 5
5 11 9 1/4 7/8 8 3/4 4 3/4 5 1/4
6 12 1/2 10 5/8 7/8 12 3/4 4 3/4 5 1/2
8 15 13 1 12 7/8 5 1/2 6
10 17 1/2 15 1/4 1 1/8 16 1 6 1/4 6 3/4
12 20 1/2 17 3/4 1 1/4 16 1 1/8 6 3/4 7 1/4
14 23 20 1/4 1 1/4 20 1 1/8 7 7 1/2
16 25 1/2 22 1/2 1 3/8 20 1 1/4 7 1/2 8
18 28 24 3/4 1 3/8 24 1 1/4 7 3/4 8 1/4
20 30 1/2 27 1 3/8 24 1 1/4 8 8 3/4
24 36 32 1 5/8 24 1 1/2 9 10

ASTM B574 Hastelloy C276 Stud Bolt Torque Chart

Flange
Size
B16.5 Class 150 RF/ Ring Gaskets
B16.5 Class 150 FF/ Full Face Gaskets
Torque / Round (ft-lbs)
Stud Bolts Tighten Sequence
Torque / Round (ft-lbs)
Stud Bolts Tighten Sequence
Dwg/No.
2nd
1st
Final
Bolt Size
Dwg*/No.
2nd
1st
Final
Bolt Size
3/4
4-bolt
27
13
40
1/2
4-bolt
40
20
60
1/2
1/2
4-bolt
20
10
30
1/2
4-bolt
40
20
60
1/2
1-1/4
4-bolt
40
20
60
1/2
4-bolt
40
20
60
1/2
1
4-bolt
30
15
50
1/2
4-bolt
40
20
60
1/2
2
4-bolt
80
40
120
5/8
4-bolt
80
40
120
5/8
1-1/2
4-bolt
40
20
60
1/2
4-bolt
40
20
60
1/2
3
4-bolt
80
40
120
5/8
4-bolt
80
40
120
5/8
2-1/2
4-bolt
80
40
120
5/8
4-bolt
80
40
120
5/8
4
8-bolt
80
40
120
5/8
8-bolt
80
40
120
5/8
3-1/2
8-bolt
80
40
120
5/8
8-bolt
80
40
120
5/8
6
8-bolt
120
60
200
3/4
8-bolt
120
60
200
3/4
5
8-bolt
120
60
200
3/4
8-bolt
120
60
200
3/4
10
12-bolt
190
95
320
7/8
12-bolt
190
95
320
7/8
24
20-bolt
600
300
1,000
1-1/4
20-bolt
600
300
1,000
1-1/4
8
8-bolt
120
60
200
3/4
8-bolt
120
60
200
3/4
14
12-bolt
294
147
490
1
12-bolt
294
147
490
1
12
12-bolt
190
95
320
7/8
12-bolt
190
95
320
7/8
18
16-bolt
426
213
710
1-1/8
16-bolt
426
213
710
1-1/8
16
16-bolt
294
147
490
1
16-bolt
294
147
490
1
20
20-bolt
426
213
710
1-1/8
20-bolt
426
213
710
1-1/8
Flange Size
B16.5 Class 300 RF/ Ring Gaskets
Torque / Round (ft-lbs)
Stud Bolts Tighten Sequence*
2nd
1st
Final
Stud Bolts Size
Dwg/No.
3/4
30
15
50
5/8
4-bolt
1/2
20
10
30
1/2
4-bolt
1-1/4
60
30
100
5/8
4-bolt
1
42
21
70
5/8
4-bolt
2
66
33
110
5/8
8-bolt
1-1/2
90
45
150
3/4
4-bolt
2-1/2
84
42
140
3/4
8-bolt
3-1/2
120
60
200
3/4
8-bolt
3
120
60
200
3/4
8-bolt
5
120
60
200
3/4
8-bolt
4
120
60
200
3/4
8-bolt
24
930
465
1,550
1-1/2
24-bolt
8
190
95
320
7/8
12-bolt
6
120
60
200
3/4
12-bolt
10
294
147
490
1
16-bolt
14
390
195
650
1-1/8
20-bolt
12
426
213
710
1-1/8
16-bolt
18
600
300
1,000
1-1/4
24-bolt
16
546
273
910
1-1/4
20-bolt
20
600
300
1,000
1-1/4
24-bolt

Thread Type Of ASME SB574 Hastelloy C276 Bolts

Screws Points

Range of Hastelloy C276 Bolts

Different Types of Hastelloy C276 Bolts

  • Hastelloy C276 Flanged Bolts
  • Hastelloy C276 Hex Bolts
  • Hastelloy C276 U Bolts
  • Hastelloy C276 Shoulder Bolts
  • Hastelloy C276 Eye Bolts
  • Hastelloy C276 Heavy Hex Bolts
  • Hastelloy C276 Hollow Hex Bolts
  • Hastelloy C276 Hollow Allen Bolts
  • Hastelloy C276 Machine Bolts
  • Hastelloy C276 Socket Head Bolts
  • Hastelloy C276 Hex Flange Bolts
  • Hastelloy C276 Lag Bolts
  • Hastelloy C276 J Bolts
  • Hastelloy C276 Elevator Bolts
  • Hastelloy C276 Hanger Bolts
  • Hastelloy C276 Carriage Bolts
  • Hastelloy C276 Allen Bolts
  • Hastelloy C276 Anchor Bolts
  • Hastelloy C276 Countersunk Bolts
  • Hastelloy C276 Stud Bolts
  • Hastelloy C276 Square Head Bolts
  • Hastelloy C276 Stud Bolts
  • Hastelloy C276 Full Threaded Stud Bolts
  • Hastelloy C276 Tap End Stud Bolts
  • Hastelloy C276 Double End Stud Bolts
  • Hastelloy C276 Reduced Shank Stud Bolts
  • Hastelloy C276 Flange Bolting Stud Bolts
  • Hastelloy C276 Weld Studs
  • Hastelloy C276 Threaded Rods
  • Hastelloy C276 Hex Head Bolts
  • Hastelloy C276 Jack Bolts
  • Hastelloy C276 Structural Bolts
  • Hastelloy C276 Step Bolts
  • Hastelloy C276 Square Head Machine Bolts
  • Hastelloy C276 Plow Bolts
  • Hastelloy C276 Metric Bolts
  • Hastelloy C276 Hex Tap Bolts
  • Hastelloy C276 Hex Machine Bolts
  • Hastelloy C276 Shoulder Eye Bolts
  • Hastelloy C276 Serrated Flange Bolts
  • Hastelloy C276 Turned Eye Bolts
  • Hastelloy C276 Long Bolts
  • Hastelloy C276 Bent Bolts
  • Hastelloy C276 Square U Bolts
  • Hastelloy C276 Timber Bolts
  • Hastelloy C276 12 Point Flange Bolts
  • Hastelloy C276 Button Head Bolts
  • Hastelloy C276 Hexagon Flange Bolts
  • Hastelloy C276 Stud Bolts
  • Hastelloy C276 Hexagon Head Bolts
  • Hastelloy C276 Lifting Eye Bolts
  • Hastelloy C276 T Bolts
  • Hastelloy C276 Threaded Bolts

Key Technical Features

  • Exceptional Corrosion Resistance: Designed to resist pitting, crevice corrosion, and stress corrosion cracking in chloride-rich and acidic environments such as hydrochloric acid and seawater systems.
  • High Mechanical Stability: Maintains structural integrity under cyclic loads up to ~690 MPa tensile strength, ensuring reliable fastening in pressure vessels and reactors.
  • Thermal Performance: Performs efficiently in both cryogenic and elevated temperature conditions, making it suitable for heat exchangers and furnace assemblies.
  • Dimensional Precision: Manufactured with tight tolerance control (ISO/DIN compliance), ensuring consistent fitment in automated assembly systems and precision machinery.
  • Chemical Processing Compatibility: Resistant to oxidizing agents like ferric and cupric chlorides, making it ideal for chemical plant piping and containment systems.
  • Low Maintenance Lifecycle: Reduced replacement frequency due to superior alloy stability, lowering long-term operational downtime in critical industries.
  • Anti-Galling Characteristics: Optional surface treatments reduce thread seizure during installation in high-torque applications.

Industry Applications

Hastelloy C276 bolts are used in industries where standard fasteners cannot withstand chemical attack or extreme environmental stress. They are widely adopted in high-value engineering systems requiring long-term reliability.

  • Chemical Processing Plants — Used in reactors, pressure vessels, and piping systems exposed to strong acids and oxidizing chemicals.
  • Marine Engineering — Securing offshore platforms, seawater desalination systems, and shipboard equipment exposed to saltwater corrosion.
  • Power Generation Industry — Applied in flue gas desulfurization (FGD) systems and turbine auxiliary structures.
  • Oil & Gas Refineries — Used in sour gas environments and high-pressure pipeline assemblies.
  • Pharmaceutical Manufacturing — Ensures contamination-free fastening in sterile processing equipment.
  • Pollution Control Systems — Used in scrubbers and chemical treatment units handling aggressive exhaust gases.
  • Aerospace & Defense Systems — Applied in specialized assemblies requiring high strength-to-weight and corrosion resistance.

Manufacturing & Quality Assurance

Hastelloy C276 bolts are manufactured using controlled cold forging and precision CNC machining to maintain dimensional accuracy and grain structure integrity. The production process is designed to preserve the alloy’s corrosion-resistant properties while achieving high mechanical strength.

Each batch undergoes strict quality inspection including dimensional verification, hardness testing, and surface finish evaluation. Lot traceability ensures full material documentation from raw alloy sourcing to final dispatch.

All products supplied by KK Fasteners are aligned with ISO 9001 quality management systems, with optional compliance to RoHS and REACH standards for international regulatory requirements. This ensures reliability in both industrial and export applications where safety and performance validation are critical.

img
Icon

Wide Range of Quality Products

Explore our comprehensive range of products, ensuring you find the perfect solution for your specific requirements.

img
Icon

Competitive Pricing and Cost Savings

Save money without compromising on quality, thanks to our competitive prices and cost-effective options.

img
Icon

Exceptional Customer Service

Personalized assistance, prompt responses, and a commitment to meeting your needs, making your purchase process seamless.

Send us your Requirement for Hastelloy C276 Bolts

We can assure you one of best prices in the Industry. We respond to all enquiries with in 4-8 hours on all business days. Send us your requirement on inquiry@kkfasteners.com
Contact

Hastelloy C276 Bolts - FAQs

Hastelloy C276 bolts are high-performance nickel-based alloy fasteners designed for extreme corrosion resistance. They are widely used in chemical processing, marine, and high-temperature industrial systems where standard stainless steel bolts fail due to acids, chlorides, or oxidizing environments.

Hastelloy C276 contains nickel, molybdenum, and chromium, which provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. This makes it ideal for exposure to strong acids like hydrochloric and sulfuric acid, as well as seawater and chemical vapors.

These bolts are commonly manufactured in compliance with ASTM B574 and international dimensional standards such as DIN 933, DIN 931, ISO 4014, and ISO 4017, ensuring global compatibility and engineering reliability.

They are used in chemical plants, offshore oil and gas platforms, desalination units, power generation systems, pharmaceutical equipment, and pollution control systems where corrosion resistance and long service life are critical.

A reliable supplier should offer certified materials, full traceability, ISO-compliant manufacturing, and export experience. Buyers should also check testing documentation and consistency in quality across batches. Suppliers like KK Fasteners provide documented quality assurance and global supply capability.

Hastelloy C276 Bolts - Export Destination

Hastelloy C276 Bolts Supplier in North America
Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States.
Hastelloy C276 Bolts Supplier in South America
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.
Hastelloy C276 Bolts Supplier in Europe
Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic (Czechia), Denmark, Estonia, Finland, France, Germany, Greece, Holy See, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom.
Hastelloy C276 Bolts Supplier in Asia
Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, Cyprus, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar, Nepal, Oman, Pakistan, Palestine, Philippines, Qatar, Saudi Arabia, Singapore, South Korea, Sri Lanka, State of Palestine, Syria, Taiwan, Tajikistan, Thailand, Timor-Leste, Turkey, Turkmenistan, United Arab Emirates, Uzbekistan, Vietnam, Yemen.
Hastelloy C276 Bolts Supplier in Australia
Australia, Fiji, Kiribati, Marshall Islands, Micronesia, Nauru, New Zealand, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu.

Hastelloy C276 bolts are critical components for environments where corrosion failure is not an option. With precision manufacturing, certified material sourcing, and export-ready supply systems, KK Fasteners supports industrial buyers with reliable fastening solutions tailored to global engineering standards.

Request a detailed quotation or technical datasheet to evaluate specifications for your next project and ensure secure, long-term fastening performance in demanding applications.