HASTELLOY B2 NUTS

Parmar Steel offers HASTELLOY B2 NUTS, renowned for their exceptional corrosion resistance in harsh environments. These nuts are crafted from Hastelloy B2 alloy, known for its nickel-molybdenum composition, which enhances resistance to hydrochloric acid, sulfuric acid, and other reducing chemicals. Ideal for applications in chemical processing, pharmaceuticals, and waste treatment plants, these nuts ensure reliability and longevity under extreme conditions. Parmar Steel ensures high-quality manufacturing standards, adhering to precise specifications to guarantee performance and durability. Whether used in marine environments, industrial settings, or in highly corrosive atmospheres, HASTELLOY B2 NUTS from Parmar Steel are a trusted choice, providing peace of mind and operational efficiency in critical operations.

Material Hastelloy Alloy Fasteners
Hastelloy Fasteners ASTM / ANSI ASTM B574 / ASME SB574
Grades of Hastelloy Fasteners
  • Hastelloy C276 Bolts
  • Hastelloy B2 Bolts
  • Hastelloy C22 Bolts
Size M02 to M160
Length 3 mm to 200 mm
Threads: BSW, UNC, BSF, UNF METRIC, or as required
M3, M14, M2.5, M2, M12, M5, M6, M4, M20, M16, M30, M24, M36, M8, M10 etc.
Standard:

JIS, ASTM,BS, GB, DIN, IS, ISO
ANSI – American National Standards Institute

  • ASME B18.5
  • ANSI B 28.2.4 1M
  • Stud Bolt length are defined in ASME B16.5 standard
  • ANSI B 18.2.4 2M
  • Hex nuts are defined in ASME B18.2.2

DIN: DIN 931, DIN 970, 934 DIN DIN 933

UTS – Unified Thread Standard : NPTF, UNS, NPT, UNF, UNC, UNEF

ISO – International Organization for Standardization : ISO 4033 ,ISO 4032, JIS standards

Widely Use of nut Types Coupling Nut, Hex Head Nut, Wing Nut, Square Nut, Panel Nut, T Nut, Acorn Nuts, Dome Nut, Eye Nut, Lock Nut etc.
Widely Use Bolts Types Hex Head Bolt, Hex Bolt, Square Bolt, Eye Bolt, T Bolt, U Bolt, Lag Bolt, Counter sunk Bolt etc.
Widely Use Washer Types Lock Washer, Machine Washers, Star Washers, Sealing Washer, Split Washer etc.
Widely Use Screw Types Threaded Screw, Hex Head Screw, Socket Head Screw, Socket Set Screw, Blind Rivet, Concrete Screw, Shoulder Screw, Anchor Screw, Panel Screw, Machine Screw etc.
Widely Use Hastelloy B2 Studs Types Double Ended Studs, Threaded Tod, Tie Bars, Tie Rodsetc.
Scope of Manufacture
  • CNC Machined , Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
  • Hot Forged , Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg
  • ASME B18.16.6 Prevailing Torque Locknuts, ASME B18.13 Screw and Washer, ASME B18.18 Fasteners
  • Hastelloy Fasteners Standard : ANSI / ASME B18.2.1, B18.3, B18.6.3, B18.6.7M, B1.1, B16.47, B18.2.2, B18.22.1
Hastelloy Fasteners In Form of: Square, Round, Threading as per Gauge,Round Etc.
Test Certificate of Hastelloy C276 Bolting : EN 10204 / 3.1
Finishing: Zinc (yellow, white, blue, black), black oxide,
Dacroment, Geometry, nickel plated, anodizing, plated zinc-nickel, Stainless steel: Passivated
Bright Zinc Plated (BZP), Self-Colour, Hot Dip Galvanised (HDG), Stainless Steel, Sherardized,Mechanically Applied coating and some special one like DACROMET
Production process hot forging M24-M100, M2-M24: Cold Froging
for Customized connecting element machining and CNC
Hastelloy bolts Head drive: Six-Lobe, Phillips/Slot, Slotted, Phillips etc
Surface Coating of materials:
  • Xylon Fasteners
  • Cadmium Fasteners
  • Teflon Fasteners
  • Hot Dipped Galvanizing Fasteners
  • Phosphate Fasteners
  • Zinc Fasteners
  • Ptfe Coated Fasteners
  • All surface finishes can be supplied, including Nickel, Geomet , Zinc, Dacromet, Galvanised, Electroless Sherardized,& PTFE.
Top Manufacturers of Fasteners SPAX® Screws, EBY Fastener, Sundaram Kundan, GKW, Infasco, Precision, APL, Unbrako,Etc.
Packing of Hastelloy Fasteners: In Bulk: pallet, Canton, Small Carton / Boxs / Pallet, or customer request
Specialized manufacturer of High Tensile Fasteners, Bolts
Test Certificates
  • Third Party Inspection Report, etc
  • Raw Materials Certificate
  • EN 10204/3.1B
  • 100% Radiography Test Report

HASTELLOY C276 HEX BOLTS DIMENSION CHART

DIA

M4

M5

M6

M8

M10

M12

M14

M16

M18

M20

M22

M24

M27

M30

M33

M36

M39

M42

M45

M48

M52

Pitch

0.7

0.8

1

1.25

1.5

1.75

2

2.5

3

3.5

4

4.5

5

Grade A upto length

40

50

60

80

100

120

140

150

Grade A not applicable to these dia’s

Head Across Flat (S)

Nom = Max

Min

Grade A

Grade B

7

8

10

13

16

18

21

24

27

30

34

36

41

46

50

55

60

65

70

75

80

6.78

7.78

9.78

12.73

15.73

17.73

20.67

23.67

26.67

29.67

33.38

35.38

Grade A not applicable to these dia’s

6.64

7.64

9.64

12.57

15.57

17.57

20.16

23.16

26.16

29.16

33

35

40

45

49

53.8

58.8

63.1

68.1

73.1

78.1

Head Height (K) Nom

Tol + or –

Grade A

Grade B

2.8

3.5

4

5.3

6.4

7.5

8.8

10

11.5

12.5

14

15

17

18.7

21

22.5

25

26

28

30

33

0.125

0.15

0.18

0.215

Grade A not applicable to these dia’s

0.2

0.24

0.29

0.35

0.42

0.5

Across corners e Min

Grade A

Grade B

7.66

8.79

11.05

14.38

17.77

20.03

23.36

26.75

30.14

33.53

37.72

39.98

Grade A not applicable to these dia’s

7.5

8.63

10.89

14.2

17.59

19.85

22.78

26.17

29.56

32.95

37.29

39.55

45.2

50.85

55.37

60.79

66.44

71.3

76.95

82.6

88.25

Thread Length (b)

For lengths

< or = 125mm

For lengths

> 125mm <= 200mm

For lengths > 200mm

14

16

18

22

26

30

34

38

42

46

50

54

60

66

Not specified as full thread recommended

20

22

24

28

32

36

40

44

48

52

56

60

66

72

78

84

90

96

102

108

116

33

35

37

41

45

49

53

57

61

65

69

73

79

85

91

97

103

109

115

121

129

Major Dia at thread (min)

3.838

4.826

5.794

7.76

9.732

11.701

13.682

15.682

17.623

19.623

21.623

23.577

26.577

29.522

32.522

35.465

38.465

41.437

44.437

47.399

51.399

Major Dia at thread (max)

3.978

4.976

5.974

7.972

9.968

11.966

13.962

15.962

17.958

19.958

21.958

23.952

26.952

29.947

32.947

35.94

38.94

41.937

44.937

47.929

51.929


EQUIVALENT OF HASTELLOY SCREWS

Standard Hastelloy C276 Hastelloy C22 Hastelloy B2
UNS N10276 N06022 N10665
WERKSTOFF NR. 2.4819 2.4602 2.4617
AFNOR - - -
JIS NW 0276 NW 6022 -
GOST ХН65МВУ - -
OR ЭП760 - -
EN NiMo16Cr15W NiCr21Mo14W -

UNS N10665 HEX HEAD NUTS CHEMICAL COMPATIBILITY

Alloy Co Cr Mo W Fe Si Mn C Ni Others
B-2 1* 1* 30 - 2* 0.1* 1* 0.01* Balance -
B-3 3* 1.5 30.5 3* 1.5 0.1* 3* 0.01* 65 min. Ti-0.2*
C-4 2* 16 16 - 3* 0.08* 1* 0.01* Balance Ti-0.7*
C-2000 2* 23 16 - 3* 0.08* - 0.01* Balance Cu-1.6
C-22 2.5* 22 13 3 3 0.08* 0.5* 0.01* Balance V-0.35*
C-276 2.5* 16 16 4 5 0.08* 1* 0.01* Balance V-0.35*
G-30 2* 30 5.5 2.5 15 1* 1.5* 0.03* Balance Nb-0.8*, Cu-2*
N 0.2* 7 16 0.5* 5* 1* 0.8* 0.08* Balance Al+Ti-0.5*, Cu-0.35*
W 2.5* 5 24 - 6 1* 1* 0.12* Balance V-0.6*

Element Hastelloy C22 Hastelloy C276 Hastelloy B2
Ni Bal Bal Bal
C 0.01 max 0.01 max 0.02 max
Mn 0.50 max 1.0 max 1.0 max
Co 2.5 max 2.5 max 1.0 max
S 0.02 max 0.03 max 0.03 max
Si 0.08 max 0.08 max 0.1 max
Cr 20 – 22.5 14.5 – 16.5 1.0 max
Mo 12.5 – 14.5 15 – 17 26 – 30
Fe 2 – 6 4 – 7 2.0 max
W 2.5 – 3.5 3 – 4.5 -
V 0.35 max 0.35 max -
P 0.02 max 0.04 max 0.04 max

HASTELLOY C276 FASTENERS MECHANICAL STRENGTH TABLE

Element Hastelloy C22 Hastelloy C276 Hastelloy B2
Density 8.69 g/cm3 8.89 g/cm3 9.2 g/cm3
Melting Point 1399 °C (2550 °F) 1370 °C (2500 °F) 1370 °C (2500 ºF )
Tensile Strength Psi – 1,00,000 , MPa – 690 Psi – 1,15,000 , MPa – 790 Psi – 1,10,000 , MPa – 760
Yield Strength (0.2%Offset) Psi – 45000 , MPa – 310 Psi – 52,000 , MPa – 355 Psi – 51000 , MPa – 350
Elongation 45 % 40 % 40 %

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The company has over two decade long record of servicing customers in India as well as all over the world. The company attaches significant emphasis on ensuring adherence to quality standards at all levels.

The basic thrust of the quality philosophy is summed up in the company's Quality Policy which serves as the bench mark of all functions executed by the company. Strict quality assurance system is being followed in all our departments and Total Quality Management is applied to streamline and all the procedures and practices in operation to achieve high standard of efficiency.

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48/50, Hingwala Building, Office No. 8, 3rd Floor, C. P. Tank Road, Mumbai - 400004, Maharashtra, India
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