We are a professional manufacturer and exporter of ASTM A453 Grade 665 Class A stud bolt,
ASTM A453 Grade 665 Class A Stainless Steel Bolting for High Temperature Applications
ASTM A453 Grade 665 Class A Stainless Steel Bolting size Scope:
SIze: from 3/8″ to 4″ in imperial and upto M100 in metric sizes.
Larger size bolts can be made to order as per request
EN 10204 Type 3.1 MTC. will be provided
The ASTM A453 specification covers standards for Grade 660 (Class A, B, C, and D), Grade 651 (Class A and B), Grade 662 (Class A and B), and Grade 665 (Class A and B) of bolting materials, with ten classes of yield strength ranging from 50 to 120 KSI [345 to 827 MPa], for use in high-temperature service such as fasteners, pressure vessels and flanges.
Bolting materials in ASTM A453 are covered rolled, forged, or hot-extruded bars, and also bolts, nuts, screws, washers, studs, and stud bolts.
Materials shall adhere to specified contents of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, tungsten, titanium, columbium, aluminum, vanadium, boron, and copper.
According to ASTM A453 materials shall be subjected to tension, stress-rupture, and hardness tests. Materials shall conform to yield strength, tensile strength, elongation, reduction of area, Brinell hardness, and Rockwell hardness requirements.
Hardening and solution treatment requirements for each material class are also given. The most common grades under ASTM A453 are..
ASTM A453 Grade 665 Stud bolt composition
Chemical Composition
| ELEMENT | ASTM A453 Grade 660 | ASTM A453 Grade 651 | ASTM A453 Grade 662 | ASTM A453 Grade 665 | ASTM A453 Grade 668 |
| % | % | % | % | % | |
| Carbon | 0.08 max | 0.28-0.35 | 0.08 max | 0.08 max | 0.08 max |
| Manganese | 2.00 max | 0.75-1.5 | 0.40-1.00 | 1.25-2.00 | 2.00 max |
| Phosphorus | 0.040 max | 0.040 max | 0.040 max | 0.040 max | 0.040 max |
| Sulfur, max | 0.030 max | 0.030 max | 0.030 max | 0.030 max | 0.030 max |
| Silicon | 1.00 max | 0.30-0.80 | 0.40-1.00 | 0.1-0.80 | 1.00 max |
| Nickel | 24.0-27.0 | 8.0-11.0 | 24.0-28.0 | 24.0-28.0 | 17.5-21.5 |
| Chromium | 13.5-16.0 | 18.0-21.0 | 12.0-15.0 | 12.0-15.0 | 13.5-16.0 |
| Molybdenum | 1.00-1.50 | 1.00-1.75 | 2.0-3.50 | 1.25-2.25 | 1.50 max |
| Tungsten | – | 1.00-1.75 | – | – | – |
| Titanium | 1.9-2.35 | 0.1-0.35 | 1.80-2.10 | 2.70-3.30 | 2.20-2.80 |
| Columbium * | – | 0.25-0.6 | – | – | – |
| Aluminum | 0.35 max | 0.35 max | 0.25 max | 0.50 max | |
| Vanadium | 0.10-0.50 | – | – | 0.50 max | |
| Boron | 0.001-0.010 | 0.001-0.010 | 0.01-0.07 | 0.001-0.010 | |
| Copper | 0.50 max | 0.50 max | 0.25 max | – |
ASTM A453 Stud Bolts Mechanical Properties
| ASTM A453 Grade | Class | Tensile, Mpa | Yield, Mpa | Elong. %, min | RA %, min |
| ASTM A453 Grade 660 | A, B C | 895 min | 585 min | 15 | 18 |
| D | 895 min | 725 min | 15 | 18 | |
| ASTM A453 Grade 651 | A | 690 min | 485 min | 18 | 35 |
| 415 min | |||||
| B | 655 min | 415 min | 18 | 35 | |
| 345 min | |||||
| ASTM A453 Grade 662 | A | 895 min | 585 min | 15 | 18 |
| B | 860 min | 550 min | 15 | 18 | |
| ASTM A453 Grade 665 | A | 1170 min | 830 min | 12 | 15 |
| B | 1070 min | 830 min | 12 | 15 | |
| ASTM A453 Grade 665 | A & B | 895 min | 858 min | 15 | 18 |
ASTM A453 Stud Bolts: Heat Treatments Requirements
| ASTM A453 | Class | Solutiona Treatment | Hardening Treatment |
| 660 | A | 1650 +/- 25 °F [900 +/-14 °C], hold 2 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool |
| B | 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool | |
| C | 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and oil quench | 1425 +/- 25 °F [775 +/- 14 °C] hold 16h, air cool followed by 1200 +/- 25 °F [650 +/- 14 °C], hold 16h, air cool | |
| D | 1650 +/- 25 °F [900 +/-14 °C], hold 2 h, min and liquid quench OR | 1325 +/- 25 °F [720 +/- 14 °C] hold 16h, air cool followed by 1200 +/- 25 °F [650 +/- 14 °C], hold 16h, air cool if necessary to achieve properties, second age : 1200 +/- 25 °F [650 +/- 14 °C] hold 16h, air cool | |
| 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and liquid quench | |||
| 651 | A | hot-cold worked at 1200 °F[650] min with 15% min reduction in cross-sectional area, stress-relief anneal at 1200 °F [650 °C] min or 4h, min | |
| B | hot-cold worked at 1200 °F[650] min with 15% min reduction in cross sectional area, stress-relief anneal at 1350 °F [730 °C] min or 4h, min | ||
| 662 | A | 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and liquid quench | 1350 to 1400 °F [730 to 760 °C], hold 20h, furnace cool to 1200 +/- 25 °F [650 +/- 14 °C], hold 20h, air cool |
| B | 1950 +/- 25 °F [1065 +/-14 °C], hold 2 h, min and liquid quench | 1350 to 1400 °F [730 to 760 °C], hold 20h, furnace cool to 1200 +/- 25 °F [650 +/- 14 °C], hold 20h, air cool | |
| 665 | A | 1800 +/- 25 °F [980 +/-14 °C], hold 3 h, min and liquid quench | 1350 to 1400 °F [730 to 760 °C], hold 20h, furnace cool to 1200 +/- 25 °F [650 +/- 14 °C], hold 20h, air cool |
| B | 2000 +/- 25 °F [1095 +/-14 °C], hold 3 h, min and liquid quench | 1350 to 1400 °F [730 to 760 °C], hold 20h, furnace cool to 1200 +/- 25 °F [650 +/- 14 °C], hold 20h, air cool | |
| 668 | A | 1650 +/- 25 °F [900 +/-14 °C], hold 2 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool |
| B | 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool |