1.4303, 305, S30500, X4CRNI18-12
ASTM A194 Grade 8P Nuts are manufactured from 303 Stainless Steel in accordance with ASTM A194 specification. Torqbolt is a prominent A194 Gr.8P nut supplier in India.
Astm A193 Grade B8P Stud Bolts Astm A193 Grade B8Pa Bolts Astm A194 Grade 8P Nuts Astm A194 Gr. 8Pa Nuts Astm A320 Grade B8P Class 2 Bolts Astm A320 Grade B8Pa Bolts
Grade | Description and UNS Designation |
C | Mn | P | SE | Si | Cr | Ni | Mo | Ti | CbH | N | Cu | Se | V | Al |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ASTM A194/A194M Grade 8P | (305) S30500 | 0.12 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 11.0-13.0 | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
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 8P | 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 |