Stud bolts, a term used for cut-to-length all thread rod, are used for: bolting together flanges, anchor bolting, as well as general fastening.
C&N is offering stud bolts in carbon, stainless, along with several special alloys. With stud bolt diameters ranging from 1/2” to 4″.
Stud bolts are most commonly available with a plain finish, which is also referred to as Black. However, there are also numerous applications that call for coating/plating, with the most common Teflon Blue coating. Teflon, or Xylan, coating provides for increased corrosive resistance.
Stud bolt Material:
ASTM A193/A320 – B6, B7, B7M, L7, L7M, B16, L43, B8, B8M, B8T, B8C, B8R, B8S
ASTM A453, A286 – 660A, 660B, 660C, 660D
UNS S32760 / ASTM A182 F55
Alloy 718 ,UNS N07718 bolt,Inconel 718 bolt
Alloy 601 UNS N06601 bolt,Inconel 601 bolt
Alloy 625 UNS N06625 bolt,Inconel 625 bolt
Alloy 925 UNS N9925 bolt,Inconel 925 bolt
MONEL 400
MONEL 500
DUPLEX
SUPERDUPLEX
ASTM F467
ASTM 468
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
|---|---|
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
| B16 | A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service. |
Mechanical Properties
Bolt -Grade Identification Markings
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 – 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 – 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 | |
| B16 | Up to 2-1/2 | 125 | 105 | 18 | 50 |
| 2-5/8 – 4 | 110 | 95 | 17 | 45 | |
| 4-1/8 – 7 | 100 | 85 | 16 | 45 |
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