Types of Fasteners Standards Products

ASTM A194 Grade 2H Nuts

[wpseo_breadcrumb]

Specification

CHEMICAL & MECHANICAL COMPOSITION

Enquire Now

ASME SA194 2H nuts

ASME SA194 Gr 2H Heavy Hex Nut manufacturer and exporter in India.

Detailed Information

Prashaant Steel & Alloys is used in the manufacture of Grade 2H Nuts in various industries that have found applications. At Prashaant Steel & Alloys, we manufacture ASTM A194 Grade 2H Nuts in a variety of sizes and dimensions that are suitable for the applications needed. The Grade 2H Nuts that we manufacture are made from our huge inventory using the highest quality of raw materials.Grade 2H Nuts are available in sizes ranging in thickness. At Prashaant Steel & Alloys, we aim to offer full customer satisfaction. Therefore, we also manufacture the Grade 2H Nuts in custom size orders that suit our clients’ specifications and requirements. Prashaant Steel & Alloys has a clientele of many companies from all over the world and caters to both large and small sectors. Prashaant Steel & Alloys houses all the machinery and technology required for the development of high caliber ASTM A194 Grade 2H Nuts at its state-of-the-art plant.   At Prashaant Steel & Alloys, the customer service team ensures that all customers are helped with all their needs and demands. Due to the high strength they give, the ASTM A194 Grade 2H Nuts from Prashaant Steel & Alloys are widely common.

The nominal size of the ASTM A194 2h Nuts ranges from ¼ inches to 4 inches. These products are made as heavy hex nuts and they come in different proof load stresses for plain and galvanized nuts. The A194 2h Coupling Nut comes with 175ksi proof load stress for plain nuts and 150 ksi for galvanized nuts. The fasteners in this grade of material are also of high hardness. The hardness of the Sa194-2h Nuts is 248BHN minimum in the Brinell hardness score. As these are heavy tensile nuts, these are used in heavy vibration and high stress applications such as aircraft engine components and in automobile engine components. The ASTM A194 Grade 2h Material is made up of carbon, manganese, phosphorus, sulfur and silicon for all classes. The class 4 has added molybdenum in the composition. The classes 7, 7M, 8 and 8M have added nickel from 8-10%. Class 8 material lacks molybdenum but the class 8M ASTM A194 2h Material has all the mentioned elements in the composition, making it the strongest and most expensive class in this grade of material.

ASTM A194 Grade 2h Heavy Hex Nut is made under the specification for carbon steel, alloy steel and stainless steel nuts for high pressure and high temperature services. There are different classes to these nuts such as 2, 2H, 2HM and so on. The different classes have different heat treatment properties and therefore varying mechanical properties.

ASTM A194 2H Heavy Hex Nuts grade standard and specification:

Standards

Designation

ASTM

A194 2H: Quenched & Tempered Carbon Steel Heavy Hex Nuts.

 

Dimensions

ASME B18.2.1, B18.3

Mandatory Requirements

Free from Mercury & Radioactive Contamination

Certification

Dual Certified As per ASTM & ASME Codes

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

Additional Certifications

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

ASTM A194 2H Material Chemical Composition Standard:

Chemicals

Percentage %

C.

0.40%

Mn.

1%

Si.

00.40%

P.

0.04%.

S.

0.050%

Cr.

Ni.

Mo.

Mechanical Behaviour of ASME SA194 2H nuts:

Specification

Material

Nominal Size, In.

Tempering Temp. °F

Proof Load Stress, ksi

Hardness Rockwell

See Note

Min

Max

ASTM A194 Grade 2H

Medium Carbon Steel, Quenched and Tempered

1/4 – 4

1000

175

C24

C38

1,2

ASME SA194 Grade 2H hex nuts Dimensions:

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

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

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

1-1/8

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

1-3/4

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

2-3/4

2.7500

4-1/8

4.125

3.988

4.763

4.546

2-3/8

2.431

2.319

Application of ASME SA194 2H nuts:

  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Pharmaceuticals
  • Sea Water Equipment

Sizes Chart of ASTM A194 Gr 2H Nuts:

Nut Size

(mm)

Diameter*

(mm)

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

Our Products

Related Products
Call Now ButtonCALL NOW