• home
  • ASTM A193 B8M Bolts

ASME SA 193 Gr B8M Hex Bolts and A193 B8M Class 2 Threaded Rod manufacturer in India



ASTM A193 B8M Bolts


What is ASTM A193 B8M?

The A193 B8m material is a 316 austenitic stainless steel that contains 18 per cent chromium, 8% nickel, and 4% molybdenum. The ASTM A193 Grade B8M Studs provide excellent corrosion resistance, heat resistance, and strength because of this material composition.

ASTM A193 Grade B8M Bolts are comparatively similar to B8 bolts. The only difference is that B8M fasteners are 316-grade stainless steel, while B8 fasteners are composed of 304-grade stainless steel.


A193 B8M Class 2 vs A193 B8M Class 1

The required ASTM A193 B8M Grade Hex Bolt is divided into Class 1 and Class 2. These ASME SA 193 Gr B8M Hex Bolts are classified based on the treatment they get. As a result, ASTM A193 B8m Class 1 studs are made of grade 316 stainless steel that has been carbide solution treated. In contrast, ASTM a193 b8m class 2 bolts, like class 1, are made of marine-grade 316 stainless steel and treated with a carbide solution technique. The main difference between class 1 and 2 ASTM A193 B8M Bolts is that class 2 ASTM A193 Gr b8m bolts have been strain-hardened.

Carbide solution treatment is used on class 1 and 2 bolts, although strain hardening is used on class 2. The strain hardening procedure makes the a193 b8m cl2 stronger. The operational temperature range of these bolts is -198 degrees to 800 degrees Celsius. At high temperatures, however, the tensile stress of the ASTM a193 b8m class 2 bolts deviates from the required minimum. The minimum tensile strength of the material is 515 MPa, while its minimum yield strength is 205 MPa.


What are A193 B8M Threaded Rod and studs?

The ASTM A193 Grade B8M Class 2 threaded rod is designed to handle high temperatures and high-pressure conditions, according to the standard.

The same 193 gr b8m bolt's substance can withstand up to 870 degrees Celsius temperatures, making it ideal for high-temperature applications. The stud bolt can also be coated to reduce oxidation and increase corrosion resistance in harsh conditions.


KM Steel India

Table Of Content

ASTM A193 B8M Bolts Specification

Specification ASTM A193 B8M Bolts
KM Steel Online Provide Options?: Yes
Making Process: Surface Plating
Heat Treatment
Insert tapping
Cold Heading
Test Certificate: EN 10204 / 3.1
supplier Size M02 to M152.4
Certifications: PED 97/23/EC Certified
Threads: BSW, BSF, METRIC, UNC, UNF or as required
supplier Of Common Head Types: Square, Round, Hex, Threading
Available Surface Finish: Zinc Plated and Hot Dip Galvanised
In Form of: Threading, Hex, Round, Square as per Gauge Etc.
Surface Coating Of Bolts: Phosphate Coating/ Cadmium Coating/ Teflon Coating/ Xylon Coating
Length 3 mm to 6"(inch)
Head drive: Phillips/ Slot, Phillips, Six-Lobe, Slotted, etc

View ASTM A193 B8M Grade Hex Bolt Price List, KM Steel Is Largest ASTM A193 B8M Class 1 Studs supplier In India


ASME SA193 B8M Grade Stud Bolts Price List

Fasteners Types Size In MM Types Of Grade Price Per Unit In (INR) India
Stud Bolts 1/2 X 80 ASTM A193 Grade B8M 160.00
- 5/8 X 50 - 340.00
- M8 X 170 - 384.00
- M10 X 180 - 465.00
- M12 X 200 - 589.00
- M14 X 220 - 668.00
Stud Bolts M16 X 240 ASTM A193 Grade B8M 786.00

ASTM A193 B8M Fasteners Types For Sale

B8M Stainless Steel Studs

B8M Stainless Steel Studs

ANSI A193 B8M B8 Threaded Rod

ANSI A193 B8M B8 Threaded Rod

Stainless Steel B8M Fasteners

Stainless Steel B8M Fasteners

A193 B8M Anchor Bolts

A193 B8M Anchor Bolts

SA193 B8M Class 2 Hex Bolts

SA193 B8M Class 2 Hex Bolts

ASTM A193 B8M Class 1 Heavy Hex Bolts

ASTM A193 B8M Class 1 Heavy Hex Bolts

ASME SA193 B8M Lock Nut

ASME SA193 B8M Lock Nut

B8M CL2 Heavy Hex Nuts

B8M CL2 Heavy Hex Nuts

A193 Gr B8M Eye Nuts

A193 Gr B8M Eye Nuts

Gr B8M Flat Washers

Gr B8M Flat Washers

A193 B8M Split Washers

A193 B8M Split Washers

B8m Class 2 Locking Nuts

B8m Class 2 Locking Nuts

AISI Gr B8M Self Tapping Screws

AISI Gr B8M Self Tapping Screws

Grade B8M Wood Screws

Grade B8M Wood Screws

ANSI A193 B8M Eye Screws

ANSI A193 B8M Eye Screws

A193 B8M Carriage Bolts

A193 B8M Carriage Bolts

SA193 B8M Belleville Washers

SA193 B8M Belleville Washers

ASTM A193 B8M Star Washers

ASTM A193 B8M Star Washers



We supplier and exporter SA193 B8M Nuts As Per International Standards, Check A193 Grade B8M Bolts Torque Chart/ Specification/ Dimensions



A193 B8m Bolt Torque Chart

Torque FT-LBS - ASTM 193 B8 Bolts
Bolts
Diameter		 Torque FT-LBS
30% Initial
Torque		 70%
Torque		 100% Final
Torque
1/2 17 39 55
9/16 24 55 80
5/8 33 77 110
3/4 59 137 195
7/8 93 217 310
1 140 325 465
1.1/8 205 480 685
1¼ 288 672 960
1.3/8 391 915 1305
1½ 518 1208 1725
1.9/16 588 1372 1960
1.5/8 668 1558 2225
1¾ 840 1960 2800
1.7/8 1044 2436 3480
2 1280 2985 4265
2¼ 1850 4315 6165
2½ 2565 5985 8550
2¾ 3121 7282 10400
3 4080 9520 13600

ASTM A193 B8M Hex Bolt Dimension

ASTM A193 B8M Hex Bolt Dimension

Normal Size Of (D) Body Diameter - Wall Thickneastm Of Head Acro ASTM A193 The Flats Acro astm A193 Corners
(D) Maximum (D) Minimum (H) Maximum (H) Minimum (F) Maximum (F) Minimum (C) Maximum (C) Minimum
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

Grade B8m Class 2 Heavy Hex Bolts Dimension

grade b8m class 2 heavy hex bolts dimension

Body Dia. Of (D) Body Dia. Of (D) Across the F (Flats) Across the Corners © Height Of H (Head) Lengths Of T (Thread)
Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum < 6” > 6”
1/2 0.515 0.482 0.875 0.85 1.01 0.969 0.364 0.302 1.25 1.5
5/8 0.642 0.605 1.062 1.031 1.227 1.175 0.444 0.378 1.5 1.75
3/4 0.768 0.729 1.25 1.212 1.443 1.383 0.524 0.455 1.75 2
7/8 0.895 0.852 1.438 1.394 1.66 1.589 0.604 0.531 2 2.25
1 1.022 0.976 1.625 1.575 1.876 1.796 0.7 0.591 2.25 2.5
1 1/8 1.149 1.098 1.812 1.756 2.093 2.002 0.78 0.658 2.5 2.75
1 1/4 1.277 1.223 2 1.938 2.309 2.209 0.876 0.749 2.75 3
1 3/8 1.404 1.345 2.188 2.119 2.526 2.416 0.94 0.81 3 3.25
1 1/2 1.531 1.47 2.375 2.3 2.742 2.622 1.036 0.902 3.25 3.5
1 3/4 1.785 1.716 2.75 2.662 3.175 3.035 1.196 1.054 3.75 4
2 2.039 1.964 3.125 3.025 3.608 3.449 1.388 1.175 4.25 4.5
2 1/4 2.305 2.214 3.5 3.388 4.041 3.862 1.548 1.327 4.75 5
2 1/2 2.559 2.461 3.875 3.75 4.474 4.275 1.708 1.479 5.25 5.5
2 3/4 2.827 2.711 4.25 4.112 4.907 4.688 1.869 1.632 5.75 6
3 3.081 2.961 4.625 4.475 5.34 5.102 2.06 1.815 6.25 6.

Refer Grade B8M Stud Bolts Weight Chart and A193 B8M Class 2 Chemical Composition, Mechanical Properties, supplier of a193 B8M Bolts In India


ASTM A193 B8M Class 2 Chemical Composition

Element ASTM A193 B8M
Carbon 0.08% maximum
Silicon 1.00% maximum
Molybdenum 2.00 – 3.00%
Manganese 2.00% maximum
Phosphorus, maximum 0.045%
Chromium 16.0 – 18.0%
Nickel 10.0 – 14.0%
Sulfur, maximum 0.030%

ASTM A193 B8M Bolts Mechanical Properties

Grade Size Tensile ksi, minimum Yield, ksi, minimum Elong, %, minimum RA % minimum HBW HRC
A193 B8M Class 1 All 75 30 30 50 223 maximum 96 maximum
A193 B8M Class 2 Up to 3/4 110 95 15 45 321 maximum 35 maximum
1-1/8 - 1-1/4 95 65 25 45
1-3/8 - 1-1/2 90 50 30 45
7/8 - 1 100 80 20 45

ASTM A193 B8M Temperature Range

Specification Grades Temperature Degree F (Deg C)
ASTM A193 B8M Class 1 25 25 23.6 21 17 12.5 8.5 4.5
ASTM A193 B8M Class 2 11.2 11 10.8 10.5 10.3 10.1 9.9

ASME A193 B8M Bolts Head Style

ASME A193 B8M Bolts Head Style

Accept All Small And Large Orders Of Stainless Steel B8M Heavy Hex Nuts, Flat Washers, Self Tapping Screws, Anchor Bolts supplier In India


Schedule Chart Of A193 B8m Class 2 Bolts

Weight In KG For 100 NOS

Length In (MM)

Bolts Diameter

M5

M6

M8

M10

M12

M14

M16

M18

M20

M22

16

0.448

0.743

1.590

3.211

20

0.598

0.812

1.711

3.411

4.892

25

0.660

0.897

1.871

3.660

5.252

8.170

30

0.737

1.010

2.070

3.912

5.574

9.690

10.707

18.657

35

0.804

1.120

2.271

4.223

5.974

10.000

11.416

16.026

19.608

40

0.881

1.230

2.470

4.533

6.410

10.288

12.107

16.667

20.747

45

0.958

1.340

2.671

4.840

6.859

10.504

12.821

17.241

21.739

50

1.030

1.450

2.870

5.155

7.299

11.261

13.624

17.857

22.727

28.409

55

1.560

3.071

5.464

7.740

11.628

14.409

18.868

23.810

30.120

60

1.670

3.270

5.774

8.183

12.255

15.244

20.000

25.126

32.051

65

1.781

3.472

6.083

8.621

12.626

16.026

21.008

26.455

34.014

70

1.890

3.671

6.394

9.058

12.987

16.835

22.124

27.778

35.461

75

2.000

3.873

6.702

9.506

13.228

17.606

23.256

29.070

39.063

80

2.111

4.072

7.013

10.000

13.889

18.248

24.510

30.303

40.000

90

4.472

7.634

10.917

14.925

19.841

26.042

33.113

41.667

100

4.873

8.251

11.820

16.340

21.459

27.778

35.714

46.296

110

8.881

12.723

17.730

23.041

31.250

38.168

47.170

120

9.506

13.624

18.797

24.631

32.895

40.984

50.000

130

10.101

14.535

20.000

26.316

34.722

43.478

52.632

140

10.707

15.432

20.833

27.933

35.461

46.296

55.556

150

11.312

16.340

22.222

29.412

37.594

48.544

58.824

160

11.905

17.241

24.272

31.056

40.984

50.505

61.728

170

12.500

18.116

32.680

53.191

64.935

180

13.123

19.011

26.882

34.247

55.556

67.568

190

13.736

19.920

35.971

58.140

70.423

200

14.327

20.833

29.586

37.594

49.020

60.976

73.529

220

15.528

22.624

40.650

65.789

79.365

240

16.722

24.510

43.860

71.429

84.746

250

17.301

25.381

45.455

74.627

87.719

260

17.921

26.316

47.170

76.923

90.909

280

19.157

28.090

50.505

81.967

98.039

300

20.325

29.940

53.763

87.719

104.167

320

31.646

56.818

92.593

340

33.557

60.241

98.039

360

35.211

63.291

104.167


Dimensions Of SA 193 Gr B8M Flat Washer

Dimensions Of SA 193 Gr B8M Flat Washer

Normal Size USS SAE
Inner Diameter Of
(A)		 Outer Diameter Of
(B)		 Wall Thickness Of
(C)		 Inner Diameter Of
(A)		 Outer Diameter Of
(B)		 Wall Thickness Of
(C)
#2 - - - 3/32" 1/4" 0.020"
#4 - - - 1/8" 5/16" 0.032"
#6 - - - 5/32" 3/8" 0.049"
#8 - - - 3/16" 7/16" 0.049"

do you know that Siddhagiri is one of the favorite supplier of ASTM A193 B8M Bolts in the below countries?:

  • Rumaila Oil Field-UAE

    Rumaila Oil Field-UAE

  • Markmore Energy (Labuan) Ltd-Malaysia

    Markmore Energy (Labuan) Ltd-Malaysia

  • Lake Charles Lng Liquefaction Plant-USA

    Lake Charles Lng Liquefaction Plant-USA

  • Sahara Pharmaceutical-Dubai

    Sahara Pharmaceutical-Dubai

SA193 B8M Stud Bolts Thread Style

SA193 B8M Stud Bolts Thread Style

A193 B8M Class 1 Hex Nuts Dimensions

A193 B8M Class 1 Hex Nuts Dimensions

(D) (E) (S) maximum (S) minimum (M) maximum (M) minimum
1/4" 0.5100 0.4450 0.4380 0.2000 0.1900
5/16" 0.6100 0.5250 0.5180 0.2500 0.2400
3/8" 0.6900 0.6000 0.5920 0.3120 0.3020
7/16" 0.8200 0.7100 0.7020 0.3750 0.3650
1/2" 0.9500 0.8200 0.8120 0.4370 0.4270
9/16" 1.0600 0.9200 0.9120 0.5000 0.4900
5/8" 1.1700 1.0100 1.0000 0.5620 0.5520
3/4" 1.3900 1.2000 1.1900 0.6870 0.6770
7/8" 1.5000 1.3000 1.2880 0.7500 0.7400
1" 1.7100 1.4800 1.4680 0.8750 0.8650
1.1/8" 1.9300 1.6700 1.6400 1.0000 0.9900
1.1/4" 2.1500 1.8600 1.8150 1.1250 1.1050
1.3/8" 2.3700 2.0500 2.0050 1.2500 1.2300
1.1/2" 2.5600 2.2200 2.1750 1.3750 1.3550
1.3/4" 2.9800 2.5800 2.5200 1.6250 1.6050
2" 3.1900 2.7600 2.7000 1.7500 1.7300

B8M Class 2 Threaded Rod Dimensions

B8M Class 2 Threaded Rod Dimensions

Global Client Reference list & delivery schedule of ASTM A193 B8M Bolts


Location Days Clients
India 7
  • Indian oil corporation, India
  • L&T India
  • Essar India
  • BHEL India
  • NTPC India
  • WIPRO India
Malaysia 15
  • Saag Oil & Gas Sdn Bhd (Malaysia), Block C1, Petaling Jaya, Malaysia, 19-5, 47301 Petaling Jaya, Selangor, Malaysia
  • Malaysian Oil & Gas Services Council, Malaysia, Persiaran Petronas, Kuala Lumpur City Centre, 50088 Kuala Lumpur, Malaysia
  • Synergy Oil & Gas Engineering Sdn Bhd, Malaysia, B-07-02, Skypark @, Jalan USJ 25/1, One City, 47600 Subang Jaya, Selangor, Malaysia
  • Hablem Oil & Gas (M) Sdn Bhd, Malaysia, Lot K-7162 (Ground Floor), Bandar Seri Kerteh, 24300 Kerteh, Terengganu, Malaysia
United Arab Emirates (UAE) 15
  • Hexa Oil & Gas, UAE, Abu Dhabi - United Arab Emirates (UAE)
  • Al Masaood Oil & Gas, UAE, Abu Dhabi - United Arab Emirates (UAE)
Dubai 15
  • SPEC Oil & Gas FZCO- Dubai, Sheikh Mohammad Bin Zayed Rd - Dubai - United Arab Emirates (UAE)
  • Dragon Oil LLC -Dubai, Umm Al Hurair 2, Building 16, Executive Office Building- Dubai, UAE
  • Lazer Clean Middle East L.L.C, Dubai - United Arab Emirates (UAE)
  • Esterpol DIP, Dubai Investments Park 2 - Dubai - United Arab Emirates (UAE)
Indonesia 20
  • Pacific Oil & Gas Indonesia. PT- Indonesia, RT.14/RW.20, Kebon Melati, Central Jakarta City, Jakarta 10230, Indonesia
  • GE Oil & Gas- Indonesia, Batu Ampar, Batam City, Riau Islands 29444, Indonesia
  • Medco E&P Indonesia TUGU- Indonesia, Jawa Barat 16750, Indonesia
  • Mubadala Petroleum - Indonesia, DKI Jakarta, Daerah Khusus Ibukota Jakarta 12310, Indonesia

ASTM Standards


Weight Calculator



Material Grade Equivalent