321S31, BS2337, 1.4541, 321, S32100, X6CRNITI18-10
ASTM A194 Grade 8TA Nuts are manufactured from 305 Stainless Steel in accordance with ASTM A194 specification. Torqbolt is a prominent A194 Gr.8TA nut supplier in India.
321 Stainless Bolts Type 321 Stainless Fasteners Type 321 Stainless Steel Rings 321 Stainless Steel Hex Nuts Type 321 Stainless Steel Screws Type 321 Stainless Threaded Rod Type 321 Stainless Steel Washers Astm A193 Grade B8T Class 1 Bolts Astm A193 Grade B8Ta Bolts Astm A194 Gr. 8T Nuts Astm A194 Grade 8Ta Heavy Hex Nuts Astm A320 Grade B8T Bolts Astm A320 Grade B8Ta Bolts 1.4541 Screws
Grade | Description and UNS Designation |
C | Mn | P | SE | Si | Cr | Ni | Mo | Ti | CbH | N | Cu | Se | V | Al |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ASTM A194/A194M Grade 8TA | (321) S32100 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | . . . | 5 x (C+N) min - 0.70 max | . . . | 0.10 | . . . | . . . | . . . | . . . |
Grade and Type | Completed Nuts | Sample Nut after Treatment | |||
---|---|---|---|---|---|
Brinell Hardness | Rockwell Hardness | Brinell Hardness, min | Rockwell Hardness B Scale, min | ||
C Scale | B Scale | ||||
ASTM A194/A194M Grade 8TA | 126 to 300 | 32 max | 60 min | ... | ... |
Nominal Size, in. | Threads per Inch | Stress Area in. 2 | Proof Load, lbf A | |
---|---|---|---|---|
All Types of Grade 8 | ||||
Heavy HexH | HexI | |||
1/4 | 20 | 0.0316 | 2 540 | 2 380 |
5/16 | 18 | 0.0524 | 4 190 | 3 930 |
3/8 | 16 | 0.0774 | 6 200 | 5 810 |
7/16 | 14 | 0.1063 | 8 500 | 7 970 |
1/2 | 13 | 0.1419 | 11 350 | 10 640 |
9/16 | 12 | 0.182 | 14 560 | 13 650 |
5/8 | 11 | 0.226 | 18 080 | 16 950 |
3/4 | 10 | 0.334 | 26 720 | 25 050 |
7/8 | 9 | 0.462 | 36 960 | 34 650 |
1 | 8 | 0.606 | 48 480 | 45 450 |
11/8 | 8 | 0.790 | 63 200 | 59 250 |
11/4 | 8 | 1.000 | 80 000 | 75 000 |
13/8 | 8 | 1.233 | 98 640 | 92 450 |
11/2 | 8 | 1.492 | 119 360 | 111 900 |
Nominal Size, mm | Threads Pitch | Stress Area mm 2 | Proof Load, kNA | |
---|---|---|---|---|
All Types of Grade 8 | ||||
Heavy HexH | HexI | |||
M6 | 1.0 | 20.1 | 11.1 | 10.4 |
M8 | 1.25 | 36.6 | 20.1 | 18.8 |
M10 | 1.50 | 58.0 | 31.9 | 29.9 |
M12 | 1.75 | 84.3 | 46.4 | 43.4 |
M14 | 2.0 | 115.0 | 63.3 | 59.2 |
M16 | 2.0 | 157.0 | 86.4 | 80.9 |
M20 | 2.5 | 245.0 | 134.8 | 126.2 |
M22 | 2.5 | 303.0 | 166.7 | 156.0 |
M24 | 3.0 | 353.0 | 194.2 | 181.8 |
M27 | 3.0 | 459.0 | 252.5 | 236.4 |
M30 | 3.5 | 561.0 | 308.6 | 288.9 |
M36 | 4.0 | 817.0 | 449.4 | 420.8 |
Proof Load, kNA | ||||
---|---|---|---|---|
NominalSize, mm | ThreadPitch | Stress Area,mm2 | All Typesof Grade 8(strain hardened) | All Typesof Grade 8(strain hardened) |
Heavy HexC | HexB | |||
1/4 | 20 | 0.0316 | 3 950 | 3 480 |
5/16 | 18 | 0.0523 | 6 550 | 5 760 |
3/8 | 16 | 0.0774 | 9 675 | 8 510 |
7/16 | 14 | 0.1063 | 13 290 | 11 690 |
1/2 | 13 | 0.1419 | 17 740 | 15 610 |
9/16 | 12 | 0.182 | 22 750 | 20 020 |
5/8 | 11 | 0.226 | 28 250 | 24 860 |
3/4 | 10 | 0.334 | 41 750 | 36 740 |
7/8 | 9 | 0.462 | 53 130 | 46 200 |
1 | 8 | 0.606 | 69 690 | 60 600 |
11/8 | 8 | 0.790 | 82 950 | 75 050 |
11/4 | 8 | 1.000 | 105 000 | 95 000 |
13/8 | 8 | 1.233 | 123 300 | 110 970 |
11/2 | 8 | 1.492 | 149 200 | 134 280 |
Proof Load, kNA | ||||
---|---|---|---|---|
Nominal Size, mm | Thread Pitch | Stress Area,mm2 | All Types of Grade 8(strain hardened) | All Types of Grade 8(strain hardened) |
Heavy HexC | HexB | |||
M6 | 1.0 | 20.1 | 17.3 | 15.3 |
M8 | 1.25 | 36.6 | 31.3 | 27.8 |
M10 | 1.50 | 58.0 | 49.9 | 44.1 |
M12 | 1.75 | 84.3 | 72.5 | 64.1 |
M14 | 2.0 | 115.0 | 98.9 | 87.4 |
M16 | 2.0 | 157.0 | 135.0 | 119.3 |
M20 | 2.5 | 245.0 | 210.9 | 186.2 |
M22 | 2.5 | 303.0 | 240.9 | 209.0 |
M24 | 3.0 | 353.0 | 280.6 | 243.5 |
M27 | 3.0 | 459.0 | 332.7 | 300.6 |
M30 | 3.5 | 561.0 | 406.7 | 367.5 |
M36 | 4.0 | 817.0 | 563.7 | 506.5 |