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ASTM A453 Grade 660 Bolts

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Specification

CHEMICAL & MECHANICAL COMPOSITION

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Manufacturer of ASME SA 453 gr 660 Stud Bolts, Grade 660 Class A Nuts in India.

Detailed Information

Prashaant Steel & Alloys is a well-known Grade 660 Bolts maker and retailer. We manufacture ASTM F468 Grade 660 Bolts with the best quality raw materials from our vast inventory. Prashaant Steel & Alloys produces Grade 660 Bolts of excellent quality and has carved out a niche for itself in the industry. Our Grade 660 Bolts are highly common and are used in a number of industries due to their high strength and reliability. Prashaant Steel & Alloys has a well-equipped production facility that can fill huge orders of ASTM F468 Grade 660 Bolts in a range of sizes and diameters. We manufacture Grade 660 Bolts and export them to all of the world’s big cities. We store our goods in suitable wooden boxes and ship them with all appropriate paperwork to prevent product degradation during shipping.

These have high Brinell hardness scores ranging from 248 to 341HBW. The astm a453 grade 660 Nut Bolts range in size and length according to the grades. They range from 3/8 inches to 4 inches in sizes. The sizes range up to M100 in the metric system for the ASTM A453 Grade 660 Class D Studs. These are high tensile fasteners and can be used in high vibration systems such as engine parts. As these also can withstand high temperature and pressure, these are used in boiler, pressure vessel and pipeline applications. The ASTM A453 Gr 660 Class C Bolts are used in oil and gas lines as well. The rupture resistance of these bolts make them better for use in oil and gas transmission lines. The A453 Grade 660 Class B Stud Bolts can also be easily applied to applications that need frequent installation and uninstallation of the bolts for testing and operational needs. The ASTM A453 Gr 660 Stainless Steel Bolt can be heat treated to achieve the necessary hardness. The four different classes can be heat treated differently and are used in different application types. The class D A453 Gr 660 specification fastener is more expensive than the other classes.

ASTM A453 gr 660 Bolts come in four different classes. The class D is superior to others with high yield strength values. The material is made up of 24% nickel, 13% chromium, molybdenum, titanium, aluminum, vanadium, boron, silicon, sulfur, phosphorus, manganese and carbon in the composition. The A453 Gr 660 Class A/B/C/D Stud Bolts are very highly corrosion resistant to acidic conditions.

ASTM A453 grade 660 Nuts grades and specifications:

Standard

ASTM A453/ ASME SA453

Melt Origin

East Europe/South America/Korea/Japan

Dimensions

ASME B18.2.1, B18.3

Mandatory Requirements

Free from Mercury & Radioactive Contamination

Certification

Dual Certified As per ASTM & ASME Codes

Additional Certifications

PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified

Threads Configuration

ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads

Additional Requirements

NACE MR0103/MR0175/ISO 15156 Compliance

Dimensions Table of ASTM A286 Gr. 660 Bolts:

NOMINAL SIZE (D)

BODY DIAMETER

HEAD THICKNESS ASTM A193

ACRO ASTM A193 THE FLATS

ACROASTM A193 CORNERS

D (MAX)

D (MIN)

H (MAX)

H (MIN)

F (MAX)

F (MIN)

C (MAX)

C (MIN)

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

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

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

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

ASTM A453 Gr 660 Bolts Chemical Resistance Guide:

Element

Grade 660

Carbon

0.08 max

Manganese

2.00 max

Phosphorus, max

0.040 max

Sulfur, max

0.030 max

Silicon

1.00 max

Nickel

24.0-27.0

Chromium

13.5-16.0

Molybdenum

1.00-1.50

Tungsten

Titanium

1.9-2.35

Columbium *

Aluminum

0.35 max

Vanadium

0.10-0.50

Boron

0.001-0.010

Copper

Mechanical Behaviour of A453 Gr 660 Class C Bolts:

Grade

Class

Tensile Strength

Yield Strength

Elongation

in 4D, min, %

Reduction

of Area, min, %

Brinell

Hardness

Number

Approximate

Rockwell

Hardness, B & C

Ksi

Mpa

Ksi

Mpa

min

max

Grade 660

A, B and C

130

895

85

585

15

18

248-341

24 HRC

37 HRC

Grade 660

D

130

895

105

725

15

18

248-341

24 HRC

35 HRC

A453 Grade 660 Class D Studs Material Equivalent:

AISI

UNS

BS

Wr No.

En Name

DIN EN

JIS

AMS

ASTM

other names

Additional Requirements

660

S 66286

HR 51

1.4944

X6NiCrTiMoV26-15

10269

SUS 660

5726

ASTM A453 GRADE 660A

incoloy a286

NACE MR-0175

Standard Specification of Grade 660 Stud Bolts:

  • ASTM A453 / A453M – 16 : Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
  • ASTM A1082 / A1082M – 16 : Standard Specification for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
  • ASTM F2281 : Standard Specification for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications Designation
  • ASTM A1014 / A1014M – 16 : Standard Specification for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
  • ASTM A962 / A962M – 16a : Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
  • ASTM A638 / A638M : Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service

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