Carpenter’s alloy is a premium quality alloy used for several purposes. This alloy has high nickel content which goes up to 32% of the whole alloy. It also contains chromium, carbon, copper, molybdenum, manganese, columbium, silicon, iron, and molybdenum in the alloy. The small portion of columbium in its chemical structure is highly beneficial for the stabilization of the alloy. This helps in the smooth welding of the alloy and has a good thermal resistance. Alloy 20 is also reputed for its simple fabrication. This also reduces the possibility of intergranular corrosion. Alloy 20 stud bolts are produced by the either method of cold or hot forming.

Alloy 20 Stud Bolt
Table of Content

Incoloy® Alloy 20 Tap End Stud Bolts, Alloy 2.4660 Stud Bolts, Type Nickel Alloy 20 Double End Stud Bolts At Best Price In India, Alloy 20Cb-3® Stud Bolts, Alloy 20 Stud Bolts, Alloy 20 Stud Bolts Manufacturers, Inconel 20 Stud Bolts, Ped Approved Manufacturer of Alloy 20 Industrial Stud Bolts, UNS N08020 Stud Bolts, Alloy 20 Stud Bolts Supplier in Mumbai, India.

The major purpose of Alloy 20 stud bolts is to fix two components together in an industrial appliance by the use of stud protrusion. Alloy 20 stud bolts are used in procedures that happen in the presence of chlorides. Alloy 20 is pretty much immune to chloride stress cracking and provides a good amount of resistance in such cases. Alloy 20 stud bolts are highly resistant to strong acids mainly sulfuric acid. They are also very ductile and have a long life. Alloy 20 stud bolts have this unique feature, they do not lose their shape if they come in contact with liquid nitrogen. They are easily usable in appliances which work in elevated temperatures. Alloy 20 stud bolts are used in various industries like chemicals for desulfurization of flue-gas, petroleum, pharmaceutical, metal cleaning, synthetic fiber, plastics, process piping, food processing, industrial fluid handling, and many others.

Zeon Fasteners LLP is one of the top Mumbai-based stockists of Alloy 20 stud bolts. We have a huge capacity for stocking industrial products. This capacity reaches up to 500 tons at once. We have been progressing at a good speed over the years. Our client base is wide as we assure them good quality goods and services. We partnered with Larsen & Turbo in 2006, and began with, our Duplex steel stocking program.

Alloy 20 Stud Bolts

Specification For Alloy 20 Bolts

Standard: ASTM B473
Size : Cold Forming process: M2-M24 Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg CNC Machining for M100 / 4” Dia, up to 1500mm lg Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Hex Nuts
Nuts Size Metric: Dia: M10 – M110 / Length: 12 – 1200MM
Nuts Size Inch: Dia: 1/2″ – 4.0″ / Length: 1/2″ – 52″
Length: 3 to 200 mm
Standard: ISO, IS, ANSI, ASME, UNI, ASTM, DIN, JIS, IS, GB, BS, CSN, EU, IFI, PN, and all International Standards
DIN Standard : DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315
Threads: METRIC, BSW, UNC, UNF, BSF or as required
Nuts Forming: Hot Forged Nuts & Cold Forged Nuts
UTS – Unified Thread Standard: UNC, UNF, NPT, UNS, UNEF, NPTF
ASME Standard: ASME B18.2.2 / ASME B18.16.6 /ASME B18.16.4 / ASME B18.2.2
Certification: Dual Certified As per ASTM & ASME Codes

Equivalent Grades Of Alloy 20 Stud Bolts

STANDARD WERKSTOFF NR. UNS EN AFNOR
Alloy 20 2.4660 N08020 NiCr20CuMo Z2NCUD31-20AZ

ASTM F593 Alloy 20Cb-3® Stud Bolts Chemical Composition

Grade C Mn Si S Cu Ni Cr Fe Mo P
Alloy 20 0.07 max 2.00 max 1.00 max 0.035 max 3.00 – 4.00 32.00 – 38.00 19.00 – 21.00 29.85 min* 2.00 – 3.00 0.045 max

Alloy 20 Stud Bolts Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Alloy 20 8.1 g/cm3 1443 °C (2430 °F) Psi -80,000, MPa -551 Psi – 35,000, MPa – 241 30 %

Weight Chart of Alloy 20 Stud Bolts

Weight Imperial

STUD BOLT LENGTH (in inches) 1/2 5/8 3/4 7/8 1 1 1/8 1 1/4 1.3/8 1 1/2 1.5/8 1.3/4 1 7/8
2.1/2 10.8
2.3/4 11.6 19.8
3.1/4 12.4 21 32.4
3.1/2 13.2 22.2 34.3 50
4 14 23.4 36.2 52.6 71.8
4.1/2 14.8 24.6 38.1 55.2 75.2 102
4.3/4 15.6 25.8 40 57.8 78.6 106 137
5 16.4 27 41.9 60.4 82 111 142 179
5.1/2 17.2 28.2 43.8 63 85.4 115 147 186 234
6 18 29.4 45.7 65.6 88.8 119 153 193 242 289
6.1/4 18.8 30.6 47.6 68.2 92.2 123 158 200 250 298 263
6.1/2 19.6 32.3 49.5 70.8 95.6 128 164 206 258 308 374 437
7 20.4 33.5 50.8 73.4 99 132 169 213 266 317 385 449
7.1/2 21.2 34.8 52.7 75.5 103 136 174 220 275 326 396 462
8 22 36.1 54.5 78 106 141 180 226 283 336 407 475
8.1/4 37.3 56.3 80.5 108 145 185 233 291 345 418 488
8.3/4 38.6 58.1 83.1 112 149 191 240 299 354 429 500
9 39.8 60 85.6 115 153 196 246 307 364 440 513
9.1/2 41.1 61.8 88.2 118 158 201 253 316 373 451 526
10 63.7 90.7 122 162 206 260 324 382 463 538
10/1.4 93.3 125 166 212 267 332 391 474 551
1.0.1/2 128 171 217 273 340 401 485 564
11 132 175 223 279 345 410 496 576
11.1/2 135 179 228 285 350 419 507 589
12 138 184 233 292 358 429 518 602

Weight Of Metric Studs Bolts

STUD BOLT LENGTH (in mm) M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39
60 5,6 8,1 12 15,6
70 6,1 8,9 13 16,9 23,7
80 6,6 9,6 14 18,2 25,4 32,5
90 7,1 10,3 15 19,6 27,1 34,5 45,5
100 7,6 11 16 21 28,8 36,7 47,2 54,2
110 8,1 11,7 17 22,2 30,4 38,7 48,3 58,2 80
120 8,6 12,4 18 23,6 32,1 40,7 50,9 60,2 84,7 107
130 9,1 13,2 19 24,9 33,7 42,8 53,4 63,2 88,6 111 141
140 9,6 14,2 20 26,2 35,4 44,9 55,9 66,2 92,4 116 147 185
150 10,1 14,9 20,8 27,5 36,9 46,9 58,5 69,2 96,3 121 153 192 237
160 10,6 15,6 21,8 29,1 38,6 49 61 72,2 100,1 126 159 199 245
170 16,4 22,8 30,4 40,2 51,1 63,5 75,2 104 130 165 206 253
180 23,8 31,8 41,9 52,3 66,1 78,1 108 135 171 213 261
190 33,1 43,5 54,4 68,4 81,1 112 140 176 219 269
200 34,5 45,2 56,2 71 84 116 144 182 226 278
210 35,8 46,8 58,5 73,5 88,4 120 149 188 233 286
220 37,1 48,4 60,6 76,1 91,4 124 154 194 240 294
230 38,5 50,1 62,6 78,6 94,4 127 159 201 247 302
240 39,8 51,7 64,7 81,2 97,4 130,9 164 208 253 310
250 41,1 53,4 66,8 83,7 100,4 134,8 172 214 260 319
260 55 68,8 86,3 103,4 138,6 177 220 267 327
270 56,6 70,9 88,8 106,4 142,5 182 224 274 335
280 58,3 73 91,4 109,4 146,3 187 230 281 343
290 75 93,9 112,4 150,1 192 236 291 360
300 77,1 96,5 115,4 154 196 241 298 368
320 101,6 121,3 161,7 206 253 312 380
340 127,3 169,4 215 265 326 395
360 133,3 177,1 224 276 340 411
380 184,8 234 288 353 428
400 192,5 243 299 367 444
420 252 311 381 460
440 262 322 394 477
460 271 334 408 493
480 281 345 422 509
500 290 357 436 526

Alloy 20 Stud Bolts Size Chart

 Class 150 Flanges ASME B16.5 (Stud bolt sizes) Length of Stud Bolts 
NPS
Outside Diameter of Flange
The diameter of Bolt Circle
The diameter of Bolt Holes
Number of Bolts
Diameter of Bolts
Raised Face
0.06 in
Ring Joint
1/2
3 1/2
2 3/8
5/8
4
1/2
2 1/4
–
3/4
3 7/8
2 3/4
5/8
4
1/2
2 1/2
–
1
4 1/4
3 1/8
5/8
4
1/2
2 1/2
3
1 1/4
4 5/8
3 1/2
5/8
4
1/2
2 3/4
3 1/4
1 1/2
5
3 7/8
5/8
4
1/2
2 3/4
3 1/4
2
6
4 3/4
3/4
4
5/8
3 1/4
3 3/4
2 1/2
7
5 1/2
3/4
4
5/8
3 1/2
4
3
7 1/2
6
3/4
4
5/8
3 1/2
4
3 1/2
8 1/2
7
3/4
8
5/8
3 1/2
4
4
9
7 1/2
3/4
8
5/8
3 1/2
4
5
10
8 1/2
7/8
8
3/4
3 3/4
4 1/4
6
11
9 1/2
7/8
8
3/4
4
4 1/2
8
13 1/2
11 3/4
7/8
8
3/4
4 1/4
4 3/4
10
16
14 3/4
1
12
7/8
4 1/2
5
12
19
17
1
12
7/8
4 3/4
5 1/4
14
21
18 3/4
1 1/8
12
1
5 1/4
5 3/4
16
23 1/2
21 1/4
1 1/8
16
1
5 1/4
5 3/4
18
25
22 3/4
1 1/4
16
1 1/8
5 3/4
6 1/4
20
27 1/2
25
1 1/4
20
1 1/8
6 1/4
6 3/4
24
32
29 1/2
1 1/4
20
1 1/4
6 3/4
7 1/4

Class 300 Flanges ASME B16.5
Length of Stud Bolts 
NPS
Outside Diameter of Flange
The diameter of Bolt Circle
The diameter of Bolt Holes
Number of Bolts
Diameter of Bolts
Raised Face
0.06 in
Ring Joint
1/2
3 3/4
2 5/8
5/8
4
1/2
2 1/2
3
3/4
4 5/8
3 1/4
3/4
4
5/8
3
3 1/2
1
4 7/8
3 1/2
3/4
4
5/8
3
3 1/2
1 1/4
5 1/4
3 7/8
3/4
4
5/8
3 1/4
3 3/4
1 1/2
6 1/8
4 1/2
7/8
4
3/4
3 1/2
4
2
6 1/2
5
3/4
8
5/8
3 1/2
4
2 1/2
7 1/2
5 7/8
7/8
8
3/4
4
4 1/2
3
8 1/4
6 5/8
7/8
8
3/4
4 1/4
4 3/4
3 1/2
9
7 1/4
7/8
8
3/4
4 1/4
5
4
10
7 7/8
7/8
8
3/4
4 1/2
5
5
11
9 1/4
7/8
8
3/4
4 3/4
5 1/4
6
12 1/2
10 5/8
7/8
12
3/4
4 3/4
5 1/2
8
15
13
1
12
7/8
5 1/2
6
10
17 1/2
15 1/4
1 1/8
16
1
6 1/4
6 3/4
12
20 1/2
17 3/4
1 1/4
16
1 1/8
6 3/4
7 1/4
14
23
20 1/4
1 1/4
20
1 1/8
7
7 1/2
16
25 1/2
22 1/2
1 3/8
20
1 1/4
7 1/2
8
18
28
24 3/4
1 3/8
24
1 1/4
7 3/4
8 1/4
20
30 1/2
27
1 3/8
24
1 1/4
8
8 3/4
24
36
32
1 5/8
24
1 1/2
9
10

Alloy 20 Stud Bolts Torque Chart

Flange
Size
B16.5 Class 150 RF/ Ring Gaskets
B16.5 Class 150 FF/ Full Face Gaskets
Torque / Round (ft-lbs)
Stud Bolts Tighten Sequence
Torque / Round (ft-lbs)
Stud Bolts Tighten Sequence
1st
2nd
Final
Dwg/No.
Bolt Size
1st
2nd
Final
Dwg*/No.
Bolt Size
1/2″
10
20
30
4-bolt
1/2″
20
40
60
4-bolt
1/2″
3/4″
13
27
40
4-bolt
1/2″
20
40
60
4-bolt
1/2″
1″
15
30
50
4-bolt
1/2″
20
40
60
4-bolt
1/2″
1-1/4″
20
40
60
4-bolt
1/2″
20
40
60
4-bolt
1/2″
1-1/2″
20
40
60
4-bolt
1/2″
20
40
60
4-bolt
1/2″
2″
40
80
120
4-bolt
5/8″
40
80
120
4-bolt
5/8″
2-1/2″
40
80
120
4-bolt
5/8″
40
80
120
4-bolt
5/8″
3″
40
80
120
4-bolt
5/8″
40
80
120
4-bolt
5/8″
3-1/2″
40
80
120
8-bolt
5/8″
40
80
120
8-bolt
5/8″
4″
40
80
120
8-bolt
5/8″
40
80
120
8-bolt
5/8″
5″
60
120
200
8-bolt
3/4″
60
120
200
8-bolt
3/4″
6″
60
120
200
8-bolt
3/4″
60
120
200
8-bolt
3/4″
8″
60
120
200
8-bolt
3/4″
60
120
200
8-bolt
3/4″
10″
95
190
320
12-bolt
7/8″
95
190
320
12-bolt
7/8″
12″
95
190
320
12-bolt
7/8″
95
190
320
12-bolt
7/8″
14″
147
294
490
12-bolt
1″
147
294
490
12-bolt
1″
16″
147
294
490
16-bolt
1″
147
294
490
16-bolt
1″
18″
213
426
710
16-bolt
1-1/8″
213
426
710
16-bolt
1-1/8″
20″
213
426
710
20-bolt
1-1/8″
213
426
710
20-bolt
1-1/8″
24″
300
600
1,000
20-bolt
1-1/4″
300
600
1,000
20-bolt
1-1/4″

Flange Size
B16.5 Class 300 RF/ Ring Gaskets
Torque / Round (ft-lbs)
Stud Bolts Tighten Sequence*
1st
2nd
Final
Dwg/No.
Stud Bolts Size
1/2″
10
20
30
4-bolt
1/2″
3/4″
15
30
50
4-bolt
5/8″
1″
21
42
70
4-bolt
5/8″
1-1/4″
30
60
100
4-bolt
5/8″
1-1/2″
45
90
150
4-bolt
3/4″
2″
33
66
110
8-bolt
5/8″
2-1/2″
42
84
140
8-bolt
3/4″
3″
60
120
200
8-bolt
3/4″
3-1/2″
60
120
200
8-bolt
3/4″
4″
60
120
200
8-bolt
3/4″
5″
60
120
200
8-bolt
3/4″
6″
60
120
200
12-bolt
3/4″
8″
95
190
320
12-bolt
7/8″
10″
147
294
490
16-bolt
1″
12″
213
426
710
16-bolt
1-1/8″
14″
195
390
650
20-bolt
1-1/8″
16″
273
546
910
20-bolt
1-1/4″
18″
300
600
1,000
24-bolt
1-1/4″
20″
300
600
1,000
24-bolt
1-1/4″
24″
465
930
1,550
24-bolt
1-1/2″

Various Types of Alloy 20 Stud Bolts

Alloy 20 Full Threaded Stud Bolts

Alloy 20 Full Threaded Stud Bolt

  • ASTM F593 Nickel Alloy 20 Full Threaded Stud Bolt
  • UNS N08020 Full Threaded Stud Bolts
  • Alloy N08020 Full Threaded Stud Bolts
  • Alloy 20Cb-3® Full Threaded Stud Bolts
  • Nickel Alloy 20 Full Threaded Stud Bolts
  • Alloy 20 Fully Threaded Stud Bolts
  • Alloy 20 Full Threaded Stud Bolts
  • Alloy 2.4660 Fully Threaded Stud
  • ASTM F593 Alloy 20 Full Threaded Stud Bolts
Alloy 20 Reduced Shank Stud Bolts

Alloy 20 Reduced Shank Stud Bolt

  • Alloy 20 Reduced Shank Stud
  • ASTM F593 Nickel Alloy 20 Reduced Shank Stud Bolt
  • Alloy 2.4660 Reduced Shank Stud
  • Alloy N08020 Reduced Shank Stud Bolts
  • Nickel Alloy 20 Reduced Shank Stud Bolts
  • ASTM F593 Alloy 20 Reduced Shank Stud Bolts
  • Alloy 20Cb-3® Reduced Shank Stud Bolts
  • UNS N08020 Reduced Shank Stud Bolts
Alloy 20 Double End Stud Bolts

Alloy 20 Double End Stud Bolt

  • Alloy 20 Double End Stud Bolts
  • Alloy 20Cb-3® Double End Stud Bolts
  • ASTM F593 Alloy 20 Double End Stud Bolts
  • Alloy 2.4660 Double Ended Stud
  • ASTM F593 Inconel 20 Double End Stud Bolt
  • UNS N08020 Double End Stud Bolts
  • Alloy N08020 Double End Stud Bolts
  • Alloy 20 Double End Threaded Stud Bolts
  • Alloy 20 Double End Stud

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  • Alloy 20Cb-3® Tap End Stud Bolts
  • Alloy 20 Full Thread Stud Bolts
  • Alloy 20 Metric Stud Bolts
  • Alloy 20 Welding Stud Bolts
  • Alloy 20 Industrial Stud Bolts
  • Inconel 20 Reduced Shank Stud Bolts
  • Alloy 20 Reduced Shank Stud Bolts
  • Alloy N08020 Stud Bolts
  • Alloy 20 Double Tap End Stud Bolt
  • Alloy 20 Threaded Rods
  • Nickel Alloy 20 Flange Stud Bolts
  • Inconel 20 Double End Stud Bolts with Reduced Shank
  • Alloy 20Cb-3® Fully Threaded Stud Bolt Sized in Inches
  • Carpenter 20 Stud Bolts
  • ASTM F593 Alloy 20 Stud Bolt
  • Alloy 20 Stud Bolts Weight Chart
  • Alloy 20 Continuous Threaded Stud Bolts
  • Type of Alloy 20 Stud Bolts

ASTM F593 Alloy 20 Stud Bolts Applications and Uses

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