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Astm A193 Grade B8 Class 2 Bolts

Asme Sa 193 B8 Cl2 Stud Bolts manufacturer in India, view torque chart

Table Of Content:
Astm A193 Grade B8 Class 2 Bolts

 

Buy A193-B8 Cl.2 Fasteners and Nuts in both Metric and Imperial (BSW, BSF, BA, UNC & UNF) thread forms

There are two classes under specification ASTM A193, Grade B8 that is class 1 and class 2. The grade B8 in ASTM A193 Grade B8 Class 2 Bolts suggests that alloy 304 was the material used. Stainless steel alloy Alloy 304 is very adaptable. Additionally, theA193 B8 Class 2 Materialis one among the most widely used alloys in the world, in part due to its cost-effectiveness. Despite the fact that both types of fasteners are carbide solution treated, there is just one distinction between the twoASME SA193 B8 Class 2 Nuts have been strain hardened.

Strain hardening or work hardening in the A193 B8 Class 2 Heavy Hex Boltstakes place by plastic deformation. Dislocation motions and dislocation generation occur during plastic deformation in the crystal structure of theA193 B8 Cl2 Strain Hardened Studs, which in this instance is 304 alloy. It is possible to boost a material's ultimate strength by strain hardening it.ASTM A193 B8 Class 2 Fasteners. Carbide solution treatment is also referred to as a solution annealing process.

In this process, the material is treated to heat as high as a temperature range of 1900ºF to 2050ºF. The heating process includes holding the ASME SA193 Grade B8 Class 2 Bolts for a duration of 1.5 hours. At the conclusion of heat treatment, the material is to undergo quenching. Quenching the ASTM A193 B8 Class 2 Bolts could be done either with the use of some amount of water or a gas fan. By performing a carbide solution treatment on grade 304 stainless steel, the A193 B8 Class 2 Stud Bolts could achieve toughness in either cryogenic or low temperature settings.

 

Compare Astm A193 Grade B8 Class 2 Bolts price with ASTM A193 Grade B6 Bolts price list

Specification List of of ASTM A193 Grade B8 Class 2 Bolts
Standard IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards
Threads: BSF, UNF METRIC, UNC, BSW or as required
Standard ANSI – American National Standards Institute
  • SS Stud Bolt length are defined in ASME B16.5 standard
  • ANSI B 28.2.4 1M
  • ANSI B 18.2.4 2M
  • ASME B18.5
  • SS Hex nuts are defined in ASME B18.2.2

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

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

ISO – International Organization for Standardization ISO 4033, : ISO 4032, JIS standards
Fasteners/ Bolts Size M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160
Length 3 mm to 200 mm
Head drive: Phillips, Slotted, Phillips/Slot, Six-Lobe etc
Test Certificate as per EN 10204 / 3.1 Manufacturer Test Certificate
Finishing Zinc white, (yellow, black, blue), black oxide,
Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated
Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating
raw materials of Source JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc.
Form Square, Hex, Threading as per Gauge, Round Etc.
Process of Production M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element
Surface Coating
  • Xylon Coated Fasteners
  • Phosphate Coated Fasteners
  • Hot Dipped Galvanizing Coated Fasteners
  • Teflon Coated Fasteners
  • Zinc Coated Fasteners
  • Cadmium Coated Fasteners
  • Ptfe Coated Stainless Steel Fasteners
Packing IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request

 

 

ASTM A193 B8 Class 2 Bolts Price List
Description Per Unit (INR) Price in USD Price in EURO
Stainless Steel Astm A193 Gr B8m Class 2 Slotted Hex Bolt -m10x50mm Long Full Thread 162 2.20 1.80
Stainless Steel Astm A193 Gr B8m Class 2 Heavy Hex Bolt -5/8 X90 Mm Long Full Thread 385 5.24 4.28
Stainless Steel Astm A193 Gr B8m Class 2 hex Bolt -m12x40mm Long Full Thread 182 2.48 2.02
Astm Sa193 Gr.b8m Class 2/astm Sa194 Gr.8m Hex Bolt With 1 Heavy Hex Nut,1 Locknut (Thin Nut)and 2 Flat Washers : M14 X 362 4.92 4.02
Astm Sa193 Gr.b8m Class 2/astm Sa194 Gr.8m Hex Bolt With 1 Heavy Hex Nut,1 Locknut (Thin Nut)and 2 Flat Washers : M16 X 395 5.37 4.39
M20 X 100 Din 931 Hex Bolts Astm A193 Grade B8 Class 2 120 1.63 1.33
M20 X 80 Din 931 Hex Bolts Astm A193 Grade B8 Class 2 95 1.29 1.05
Stainless Steel Stud Bolt To Astm A 193gr B8m-class 2 With Hex Nut To Astm A 194 Gr 8m With Washer Size : 1dia X 165 M 3,599 48.95 39.96
Stainless Steel Astm A 193 B8 Class 2 Heavy Hex Bolt :- 1/2 (Unc) X 30mm Long(Fully Threaded) 38 0.52 0.42
Stainless Steel Astm A 193 B8 Class 2 Heavy Hex Bolt :- 7/8 (Unc) X 65mm Long(Fully Threaded) 251 3.41 2.79
Stainless Steel Astm A 193 B8 Class 2 Heavy Hex Bolt :- 7/8 (Unc) X 120mm Long (Fully Threaded) 356 4.84 3.95
Stainless Steel Astm A 193 B8 Class 2 Heavy Hex Bolt :- 5/8 (Unc) X 35mm Long(Fully Threaded) 88 1.20 0.98
Stainless Steel Astm A 193 B8 Class 2 Heavy Hex Bolt :- 5/8 (Unc) X 50mm Long(Fully Threaded) 100 1.36 1.11
Stainless Steel Astm A 193 B8 Class 2 Heavy Hex Bolt :- 1 (Unc) X 120mm Long(Fully Threaded) 477 6.49 5.30
Bolt, Nut & Washer Made By Stainless steel Hex Bolt Astm A 193,b8m Class 2,m-16x90 69 0.94 0.77
Bolt, Nut & Washer Made By Stainless steel Hex Bolt Astm A 193,b8m Class 2,m-20x90 101 1.37 1.12
Bolt, Nut & Washer Made By Stainlesssteel Hex Bolt Astm A 193,b8m Class 2, Mclass2,m-16x80 70 0.95 0.78

 

Recommended Nuts & Washers
Nut Specification Washer Specification
ASTM A194 Grade 8 ASTM A240 TP304

 

Packaging of ASME SA193 Grade B8 Class 2 Bolts
ASME SA193 Grade B8 Class 2 Bolts Packaging
A193 Grade B8 Class 2 Bolts Packaging

 

Custom sizes A193 B8 Cl2 Strain Hardened Studs can be produced as per client drawing

 

Dimensions of ASME SA193 B8 Class 2 Bolts

Hex Bolt Dimension

NOMINAL SIZE (D)
BODY DIAMETER
HEAD THICKNESS
ACROSS THE FLATS
ACROSS BOLTS CORNERS
D (MAX)
D (MIN)
H (MAX)
H (MIN)
F (MAX)
F (MIN)
C (MAX)
C (MIN)
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

 

Dimensions of A193 B8 Class 2 Heavy Hex Bolts

ASTM A193 B6 Heavy Hex Bolt Dimension

Diameter (D)
Body Diameter (D)
Across the Flats (F)
Across the Corners ©
Head Height (H)
Thread Lengths (T)
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
< 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.

 

Size Chart of SA193 Grade B8 Cl. 2 Bolt

Bolt Size Chart

 

ASME SA193 B8 Class 2 Bolts Type
ASTM A193 B8 Class 2 Heavy Hex Bolts

ASTM A193 B8 Class 2 Heavy Hex Bolts

A193 B8 Class 2 Countersunk Bolts

A193 B8 Class 2 Countersunk Bolts

ASME SA193 B8 Class 2 U Bolts

ASME SA193 B8 Class 2 U Bolts

A193 B8 Class 2 Stud Bolts

A193 B8 Class 2 Stud Bolts

A193 B8 Class 2 Anchor Bolts

A193 B8 Class 2 Anchor Bolts

ASTM A193 B8 Class 2 Square Bolts

ASTM A193 B8 Class 2 Square Bolts

ASTM A193 B8 Class 2 Eye Bolts

ASTM A193 B8 Class 2 Eye Bolts

ASTM A193 B8 Class 2 Threaded Rod

ASTM A193 B8 Class 2 Threaded Rod

 

Torque Chart of A193 B8 Class 2 Bolt
TORQUE FT-LBS – ASTM A193 GRADE B8 Class 2 STUD BOLTS
BOLT
DIA
TORQUE FT-LBS
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2
16
36
52
9/16
23
53
75
5/8
31
73
104
3/4
55
129
184
7/8
71
166
237
1
107
249
356
1⅛
127
297
424
1¼
179
417
596
1⅜
186
435
622
1½
246
574
821
19/16
168
392
560
1⅝
191
445
636
1¾
240
561
801
1⅞
298
696
994
2
366
853
1219
2¼
529
1234
1762
2½
733
1709
2442
2¾
986
2300
3285
3
1289
3008
4297

 

B8 Class 2 Stud Bolt Dimensions

Engineers Stud Metal End =2 D Sk6 Metric Coarse DIN 83

d b c l<125 c l<125<200 c l 200>
M4 8.0000 14.0000 20.0000  
M5 10.0000 16.0000 22.0000  
M6 12.0000 18.0000 24.0000  
M7 14.0000 20.0000 26.0000  
M8 16.0000 22.0000 28.0000  
M10 20.0000 26.0000 32.0000 45.0000
M12 24.0000 30.0000 36.0000 49.0000
M14 28.0000 34.0000 40.0000 53.0000
M16 32.0000 38.0000 44.0000 57.0000
M18 36.0000 42.0000 48.0000 61.0000
M20 40.0000 46.0000 52.0000 65.0000
M22 44.0000 50.0000 56.0000 69.0000
M24 48.0000 54.0000 60.0000 73.0000

 

 

Quality Testing of ASTM A193 B8 Cl2 Fasteners
  • Positive Material Identification Test
  • Hardness Test
  • Tensile Testing Machine
  • IGC Test

 

 

 

 

B8 CL2 Hex Nut Dimensions
Hexagon Full Nut BSW BS 1083
d e s max s min m max m min
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

 

Heat Treatment of A193 B8 Cl2 Strain Hardened Studs
Class Heat Treatment Procedure
Class 2 Carbide Solution Treatment & Strain Hardened

 

A193 B8 Class 2 Material Bolts Coating
  • Oxidized
  • Passivation
  • Electro Polished
  • Zinc Plating
  • Hot Dipped Galvanizing
  • Chrome Plating
  • Mirror Buffed
  • Epoxy Coating
  • Teflon Coating

 

ASME SA193 B8 Class 2 Washer Dimensions chart

Flat Washer Metric Form B BS 4320

D d1 d2 d3
M1.0 1.1000 2.5000 -
M1.2 1.3000 3.0000 -
M1.4 1.5000 3.0000 -
M1.6 1.7000 4.0000 -
M2 2.2000 5.0000 -
M2.2 2.4000 5.0000 -
M2.5 2.7000 6.5000 -
M3 3.6200 7.0000 -
M3.5 3.7000 7.0000 -
M4 4.3000 9.0000 -
M4.5 4.8000 9.0000 -
M5 5.3000 10.0000 -
M6 6.4000 12.5000 0.8000
M7 7.4000 14.0000 0.8000
M8 8.4000 17.0000 1.0000
M10 10.5000 21.0000 1.2500
M12 13.0000 24.0000 1.6000
M14 15.0000 28.0000 1.6000
M16 17.0000 30.0000 2.0000
M18 19.0000 34.0000 2.0000
M20 21.0000 37.0000 2.0000
M22 23.0000 39.0000 2.0000
M24 25.0000 44.0000 2.5000
M27 28.0000 50.0000 2.5000
M30 31.0000 56.0000 2.5000
M33 34.0000 60.0000 3.0000
M36 37.0000 66.0000 3.0000
M39 40.0000 72.0000 3.0000

 

Markings of A193 B8 Class 2 Heavy Hex Bolts
Class Marking
Class 2 "Simplex Steel" Manufacturer's Logo & "B8SH" Grade Marking

 

Relates Standards of ASME SA193 B8 Class 2 Nuts
  • ASTM A1014 / A1014M – 16 : Specifications for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
  • ASTM A1082 / A1082M – 16 : Specifications for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
  • ASTM A193 / A193M – 16 : Specifications for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
  • ASTM F2281 : Specifications for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications Designation
  • ASTM A638 / A638M : Specifications for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
  • ASTM A962 / A962M – 16a : Specifications for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range

 

A193 B8 Class 2 Heavy Hex Bolts Head Style

A193 B8 Class 2 Heavy Hex Bolts Head Style

 

Hardness Chart of B8 Class 2 Stud
Grade and ClassDiameterTensile Strength Min KSIYield Strength 0.2% Offset KSIElongation in 4D, Min, %Reduction of Area Min, %Hardness Max BrinellHardness Max Rockwell
B5up to 4" incl100801650--
B6up to 4" incl110851550--
B6Xup to 4" incl90701650-C26
B7to 2-1/2"1251051650-C35
over 2-1/2 to 4"115951650-C35
over 4" to 7"100751850-C35
B7Mup to 4" incl100801850235B99
over 4" to 7"100751850235B99
B16to 2-1/2"1251051850321C35
over 2-1/2" to 4"110951745321C35
over 4" to 7"100851645321C35
Classes 1 and 1D: B8, B8M, B8P, B8LN, B8MLALL75303050223B96
Class 1: B8C, B8TALL75303050223B96
Class 1A: B8A, B8CA, B8MA, B8PA, B8TA, B8LNA, B8MLNA, B8NA, B8MNA, B8MLCuNAALL75303050192B90
Classes 1B & 1D: B8N, B8MN, B8MLCuNALL80353040223B96
Class 1C and 1D: B8RALL100553555271C28
Class 1C: B8RAALL100553555271C28
Classes 1C and 1D: B8SALL95503555271C28
Classes 1C: B8SAALL95503555271C28
Class 2: B8, B8C, B8P, B8T, B8Nto 3/4"1251001235321C35
over 3/4" to 1"115801535321C35
over 1" to 1-1/4"105652045321C35
over 1-1/4 to 1-1/2" incl100502845321C35
Class 2 B8M, B8MN, B8MLCuNto 3/4"110961545321C35
over 3/4" to 1"100802045321C35
over 1" to 1-1/4"95652545321C35
over 1-1/4 to 1-1/2" incl90503045321C35
Class 2B: B8, B8M2to 2" incl95752540321C35
over 2" to 2-1/2" incl90653040321C35
over 2-1/2 " to 3" incl80553040321C35
Class 2C: B8M3to 2" incl85653060321C35
over2"85603060321C35

 

A193 B8 Class 2 Studs Manufacturing Process
  • Stainless steel AISI 316 bars are straightforwardly moved by moving plants on our request.
  • These rods are synthetically tried for arrangement.
  • The crude material are additionally inspected for presence of blowholes and inside breaks.
  • When the material is endorsed, the go through our exclusive system of strain solidifying. This is the most basic cycle in evaluation B8 M class 2 Stud Bolts.
  • The material is then cut into the necessary sizes and stepped agreeing the endorsed ASTM.
  • The un-threaded threaded stud bolts are then roll threaded. This is again a cool mechanical cycle which improves the strain solidifying of the astm A193 grade B8M class 2 Stud Bolts.
  • The ASTM A193 grade B8m class 2 Stud Bolts are then quality checked for finish of threads and are confirmed against there required compound and mechanical properties.

 

SA193 B8 Class 2 Bolt Chemical Composition
Element B8 Class 2
Carbon 0 - 0.15%
Manganese 0 - 1.00%
Phosphorus, max 0 - 0.040%
Sulfur, max 0 - 0.03%
Silicon 0 - 1.00%
Chromium 11.5 - 13.5%
Nickel -
Molybdenum -

 

ASME SA193 B8 Class 2 Boltv Mechanical Properties
Mechanical Requirements, Inch Products
Class Diameter Tensile Strength, min, ksi Yield Strength, min, ksi Elongation in 4D min, % Reduction of Area, min, % Hardness, max
2 3/4 and under 125 100 12 35 321 HBW 35 HRC
Over ¾ to 1, incl. 115 80 15 35
Over 1 to 1-1/4, incl. 105 65 20 35
Over 1-1/4 to 1-1/2, incl. 100 50 28 45

 

Mechanical Requirements, Metric Products
Class Diameter Tensile Strength, min, ksi Yield Strength, min, ksi Elongation in 4D min, % Reduction of Area, min, % Hardness, max
2 M20 and under 860 690 12 35 321 HBW 35 HRC
Over M20 to M24, incl. 795 550 15 35
Over M24 to M30, incl. 725 450 20 35
Over M30 to M36, incl. 690 345 28 45

 

Ready Stock Of ASTM A193 B8 Class 2 Bolts
  • ASTM A193 B8 Class 2 Bolts
  • ASME SA193 Grade B8 Class 2 Bolts
  • B8 Class 2 Stud
  • astm a193 b8 class 2 bolts
  • ASTM A193 B8 Cl2
  • ASTM A193 Grade B8 Class 2 Bolts
  • ASTM A193 B8 Class 2 Fasteners
  • A193 B8 Class 2 Stud Bolts
  • B8 CL2 fasteners
  • A193 B8 Cl2 Strain Hardened Studs
  • A193 B8 Class 2 Material
  • SA193 B8 Class 2 Studs
  • ASME SA193 B8 Class 2 Nuts
  • A193 B8 Class 2 Heavy Hex Bolts

 

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