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ASTM A194 Grade 2H Nuts

Home 9 FASTENERS 9 ALLOY STEEL 9 ASTM A194 GR 2H
ASTM A194 GR 2H

ASTM A194 2H Fasteners, ASTM A194 Grade 2H Nut, ASTM A194 Grade 2H Heavy Hex Nut, A194 2H Coupling Nut, Grade 2h Hex Nuts In Mumbai

Detailed Information:

Ratna Exports specializes in manufacturing ASTM A194 Grade 2H Nuts, available in standard hex or heavy hex configurations. Our product range includes both imperial and metric sized hex nuts, as well as heavy hex nuts. Grade 2H nuts can be customized with various surface coatings such as plain black phosphate, plain zinc, cadmium, or hot dip galvanizing to suit specific requirements.

Metric hex nuts adhere to DIN 934, ASME B18.2.4.1M, and B18.2.4.2M standards, while imperial hex nuts are produced according to ASME B18.2.2 Table 4, IS-1363-3, and IS 1364-3 standards. Our imperial-sized heavy hex nuts conform to ASME B18.2.2 Table 10, whereas Metric heavy hex nuts are manufactured as per ASME B18.2.4.6M standard.

For your convenience, here’s a summary of the specifications for ASTM A194 Grade 2H Nuts:

  • Chemical Composition: ASTM A194 Grade 2H nuts typically contain carbon, manganese, phosphorus, sulfur, silicon, chromium, and molybdenum. The precise composition ensures the desired mechanical properties and corrosion resistance.
  • Hardness: Grade 2H nuts are heat-treated to achieve a specified hardness range, typically within the Rockwell C 24 to 35 range. This ensures sufficient strength and toughness for demanding applications.
  • Proof Load Requirement: ASTM A194 Grade 2H nuts are designed to meet specific proof load requirements, ensuring they can withstand the intended loads without permanent deformation. The proof load is determined based on the size and thread pitch of the nut.
  • Dimensional Standards: Ratna Exports adheres to internationally recognized dimensional standards such as DIN, ASME, and IS for metric and imperial-sized nuts. This ensures compatibility and interchangeability with corresponding bolts and fasteners.
  • Surface Coatings: Various surface coatings are available to enhance the corrosion resistance and appearance of Grade 2H nuts. Options include plain black phosphate, plain zinc, cadmium, or hot dip galvanizing, catering to different environmental conditions and application requirements.

For inquiries or a quick quote on A194 Grade 2H nuts, please contact our dedicated sales team at [email protected]. We’re committed to providing high-quality products and exceptional customer service to meet your needs.

ASTM A194 Grade 2H Nuts Material Specification Chart

Dimensions ASME B18.2.1, B18.3
Standard ASTM A194 2H/ ASME SB194 2H
Melt Origin Korea, Japan, South America, East Europe
Mandatory Requirements Free from Radioactive Contamination and Mercury
Certification Dual Certified As per ASTM and ASME Standards
Additional Requirements NACE MR0103 / ISO 15156 Compliance / MR0175
Threads Configuration

B1.1 2A or 3A Inch Unified Threads

B1.13M 6h Metric Coarse Threads
Suppliers and Distributors Located in Melbourne, Ludhiana, London, Bangalore, Port of Spain, Courbevoie, Coimbatore, Bogota, Hyderabad, Kanpur, Karachi, Baroda, Caracas, Bengaluru, Manama, Kolkata, Montreal, Gujarat, Riyadh, Santiago, Perth, Rajkot, Ankara, Nagpur, Chennai, Indore, Istanbul, Ahvaz, Jamshedpur, Janeiro, Muscat, Noida, Ranchi, Sydney, Lagos, Ahmedabad, Gimhae si, India, New Delhi, Pimpri Chinchwad, Mumbai, Abu Dhabi, Ludhiana, Gurgaon, Tehran, Thiruvananthapuram, Dammam, Vadodara, Tau, Surat, Kuwait, Ernakulam, Mexico, Calgary, Khobar, Howrah

2H Hex Nut Chemical Composition

Element

A194 Gr 2H, and 2HM

Carbon

0.40% min

Manganese

1.00% max

Phosphorus, max

0.040%

Sulphur, max

0.050%

Silicon

0.40% max

Chromium

Nickel

Molybdenum

 

ASTM A194 nuts Mechanical Strength

Specification Nuts Material Nominal Size, In. Tempering Temp. °F Proof Load Stress, ksi Hardness Rockwell
Minimum Maximum
ASTM A194 Grade 2 Medium Carbon Steel 1/4 – 4 0 150 159 352
ASTM A194 Grade 2H Medium Carbon Steel, Quenched and Tempered 1/4 – 4 850 175 C24 C38
ASTM A194 Grade 2HM Medium Carbon Steel, Quenched and Tempered 1/4 – 4 1150 150 159 237

 

ASTM A194 Grade 2H Nut Equivalent

Type ASTM Grade ASME Material Stud Bolt Combination
Heavy Hex Nuts A194 2H SA 194 2h Quenched & tempered carbon steel SA193 B7

A194 gr 2H Material Types

ASME SA 194 Grade 2H Square Nuts ASTM A194 2H Heavy hex Nuts
ASME SA 194 Gr 2H Heavy hex Nuts ASTM A194 2H Bolting Nuts
Gr 2H Heavy hex Nuts Gr 2H Hexagon High Nuts
ASTM A194 2H Hexagon High Nuts ASTM A194 2H Square Nuts
A194 Grade 2H Hex Nuts A194 Grade 2H Hexagon High Nuts
ASME SA 194 2H Hexagon Nut ASME SA 194 Gr 2H Heavy nuts
ASME SA 194 Grade 2H Heavy nuts Sa 194 Grade 2H Bolting Nuts
A194 Grade 2H Heavy nuts A194 Grade 2H Bolting Nuts
ASME SA 194 Grade 2H Bolting Nuts ASTM A194 2H Hexagon Nut
Sa 194 Grade 2H Square Nuts ASME SA 194 Gr 2H Bolting Nuts
Gr 2H Square Nuts ASTM A194 2H Heavy nuts
Grade 2H Heavy hex Nuts Sa 194 Grade 2H Hex Nuts
Grade 2H Hex Nuts ASME SA 194 2H Heavy hex Nuts

 

ASTM A194 Grade 2H Hardness Requirement

Diameter mm

Brinell Hardness

Rockwell C

Rockwell B

1-1/2 in. or M36, incl

248 to 327

24 to 35

35 max

over 1-1/2 in. or M36

212 to 327

…

95 min

Proof Load Requirement For ASTM A194 Grade 2H Nuts (Inch)

Nominal Size, Inch

Threads per Inch

Stress Area Inch²

Heavy Hex Nuts (lbf)

Hex Nuts (lbf)

1/4

20

0.0316

5 570

4 470

5/16

18

0.0524

9 170

7 860

3/8

16

0.0774

13 560

11 620

7/16

14

0.1063

18 600

15 940

1/2

13

0.1419

24 830

21 280

9/16

12

0.182

31 850

27 300

5/8

11

0.226

39 550

33 900

3/4

10

0.334

58 450

50 100

7/8

9

0.462

80 850

69 300

1

8

0.606

106 000

90 900

1 1/8

8

0.790

138 200

118 500

1 1/4

8

1.000

175 000

150 000

1 3/8

8

1.233

215 800

185 000

1 1/2

8

1.492

261 100

223 800

 

Proof Load Requirement For ASTM A194 Grade 2H Nuts (Metric)

Nominal Size, mm

Threads Pitch

Stress Area mm²

Heavy Hex Nuts (kN)

Hex Nuts (kN)

M6

1.0

20.1

29.2

20.8

M8

1.25

36.6

44.1

37.9

M10

1.5

58.0

69.9

60.0

M12

1.75

84.3

101.6

87.3

M14

2.0

84.3

138.6

119.0

M16

2.0

115.0

189.2

162.5

M20

2.5

245.0

295.2

253.6

M22

2.5

303.0

365.1

313.6

M24

3.0

353.0

425.4

365.4

M27

3.0

459.0

553.4

475.1

M30

3.5

561.0

676.0

580.6

M36

4.0

817.0

984.5

845.6

SA 194 2H Nuts Size

Nut Size

(mm)

Nuts Diameter*

(mm)

Nuts Height

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

 

A194 Gr 2H Nut Dimensions And Weight

Size Finished Hex Heavy Hex Finished Jam Heavy Hex Jam Square Heavy Square
1/2″ 3.75 6.54 2.62 4.00 5.78 7.87
5/8″ 7.33 11.9 4.93 6.96 10.8 14.3
3/4″ 11.9 19.3 7.70 11.0 15.4 23.5
7/8″ 19.0 29.7 12.0 16.7 24.5 36.2
1? 28.3 42.5 17.6 23.5 36.3 51.5
11/8″ 40.3 59.2 24.7 32.4 52.5 72.4
11/4″ 54.3 78.6 36.1 45.8 70.6 95.5
13/8″ 73.0 102 47.9 59.3 94.5 125.0
11/2″ 94.3 131 60.9 74.8 122 161
15/8″ 162 91.6
13/4″ 151 204 100 114
17/8″ 241 134
2? 224 299 140 165
21/4″ 419 227
21/2″ 564 332
23/4″ 738 429
3? 950 545
31/4″ 1194 651
31/2″ 1526 851
33/4″ 1812 1005
4? 2180 1200

ASTM A194 gr 2H nut Uses & Application

  • Petrochemical Plants
  • Power Generation Sectors
  • Oil & Gas Processing
  • Pharmaceutical Industry
  • Sea Water Equipment

Material Testing:

At Ratna Exports, ensure that all our materials undergo strict quality tests before dispatching them to our clients.

  • Tensile testing of areas is an example of mechanical testing
  • Test of hardness
  • Analysis of Chemical Compounds by Spectroscopy
  • Testing for Positive Material Identification (PMI)
  • The flattening test
  • Testing on a micro and macro scale
  • Testing for Pitting Resistance
  • Test for flares
  • Test for intergranular corrosion (IGC)

Documentation

  • HS Code is included on commercial invoices
  • Including net weight and gross weight, number of boxes, marks, and numbers
  • Embassy or Chamber of Commerce legalization/attestation of the Certificate of Origin
  • Obtaining a Fumigation Certificate
  • Test reports for raw materials
  • Traceability records for materials
  • Plan for Quality Assurance (QAP)
  • Charts for heat treatment
  • Certificates certifying NACE MR0103 and NACE MR0175
  • Certificates of Material Test (MTC) in accordance with EN 10204 3.1 and EN 10204 3.2
  • A letter of guarantee
  • Laboratory Test Reports Approved by NABL
  • Specifications/qualifications for welding procedures, WPS/PQR
  • For the purposes of the Generalised System of Preferences (GSP), fill out Form A

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