ASTM A453 GR.660 CLASS B STUD BOLT ASTM A453 GR.660 CLASS B HEAVY HEX NUTS
We are professional A453 Grade 660 Stud bolts and ASTM A453 Gr 660 Hex nuts，ASTM A453 GR.660 CLASS B STUD BOLT ASTM A453 GR.660 CLASS B HEAVY HEX NUTS manufacturer in China.
ASTM A453 GR.660 also known as “Super Alloy” or “A286” stainless steel, a precipitation-hardenable super-alloy based on iron. The material can be used in requiring high strength, paired with corrosion resistance up to 1300 °F (700 °C). Besides, the alloy has other favorable properties, including excellent fabrication characteristics, low-temperature conditions [down to -320 °F (-196 °C)]
We can supply ASTM A453 GR.660 CLASS STUD BOLT & HEAVY HEX NUTS with -196 °C Impatc Test
Hardening and solution treatment requirements for each material class are also given. The most common grades under ASTM A453 are.
- ASTM A453 660A STUD BOLT
- ASTM A453 660B STUD BOLT
- ASTM A453 660C STUD BOLT
- ASTM A453 660D STUD BOLT
ASTM A453 Grade 660 Class A/B/C/D Chemical Composition Limits |
||||||||||||||
| Weight% | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | V | Al | B | Co | Cu |
ASTM A453 GR.660 |
0.08 max | 2 max | 0.025 max | 0.025 max | 1 max | 13.5-16 | 24-27 | 1-1.5 | 1.9-2.35 | 0.10-0.50 | 0.35 max | 0.0003-0.010 | 1 max | 0.50 max |
ASTM A453 Grade 660 Class A/B/C/D Mechanical Properties
| Grade | Class | Tensile Strength | Yield Strength | Elongation in 4D, min, % |
Reduction of Area, min, % |
Brinell Hardness Number |
Approximate Rockwell Hardness, B & C |
|||
|---|---|---|---|---|---|---|---|---|---|---|
| Ksi | Mpa | Ksi | Mpa | min | max | |||||
| Grade 660 | A, B and C | 130 | 895 | 85 | 585 | 15 | 18 | 248-341 | 24 HRC | 37 HRC |
| Grade 660 | D | 130 | 895 | 105 | 725 | 15 | 18 | 248-341 | 24 HRC | 35 HRC |
ASTM A453 Grade 660 Class A/B/C/D Heat Treatment Requirements
| Grade | Class | Solution Treatment | Hardening Treatment |
|---|---|---|---|
| Grade 660 | A | 1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench | 1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool |
| Grade 660 | B | 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench | 1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool |
| Grade 660 | C | 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and oil quench | 1425 +/- 25° F [775 +/- 14°C], hold 16 hr, air cool, followed by 1200 +/- 25°F [650 +/- 14°C], air cool |
| Grade 660 | D | 1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench |
1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool, If required to achieve properties, second age: 1200 +/- 25°F [650 +/- 14°C], air cool |
astm-a453-2017
Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
Abstract
This 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 for use in high-temperature service such as fasteners, for pressure vessels and valve flanges. Bolting materials in this specification covers 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. 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.
NICKEL ALLOYS
| MATERIAL | UNS | ASTM |
|---|---|---|
| ASTM A453 Gr 660 Class A/B/C/D | S66286 | ASTM B649, A182, A276, A479, B688 |
| HASTELLOY C276 | N10276 | B574 , B622 |
| INCOLOY A286 / 800 / 800H / 825 / 925 | S66286, No8800, N08810, N08825, NO9925 | A453 , B407, B408, B564, B423, B425 , B805 |
| MONEL 400 / 5500 | N04400, N05500 | B164 , B865 |
| INCONEL 625/ 718/ 750 | N006625, N07718, N07750 | B446, B564 A1014 , B637 |
Looking for a reliable manufacturer and supplier of ASTM A453 Gr 660 Stud bolts ?
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How to order our ASTM A453 Gr 660 Stud bolts?
EXAMPLE#1
STUDBOLT, 1.1/4 IN DIA X 220MM LONG, FULLY THREADED, C/W 2 HEAVY HEXAGON NUTS, MATL STUDBOLTS & NUTS ASTM A453 GRADE 660 CLASS A OR B (DUPLEX STEEL), 8UN THREADS TO ANSI B1.1 & TOLERANCES TO B1.1 CL 2A FOR STUDBOLTS & ANSI B18.2.2 CL 2B FOR NUTS
EXAMPLE#2
SB2N,660CLB,660CLB,UNC,5/8in, 90mm 61.00 EA Studbolts, With nut
Mat spec, stud bolt(s) ASTM A453 GRADE 660 CLASS B BS 4882 GRADE L17BM
Mat spec, nut(s) ASTM A453 GRADE 660 CLASS B BS 4882 GRADE L17BM Service(s) LOW TEMPERATURE SOUR Design spec, stud bolt BS 4882
Design spec, nut ASME B18.2.2 BS 4882 Thread class symbol, stud bolt ASME B1.1 CLASS 2A Thread class symbol, nut ASME B1.1 CLASS 2B Type of thread ASME B1.1 SERIES UNC Type, nut HEAVY HEXAGONAL SEMI FINISHED Number, nuts per bolt 2 IMPACT TEST: BS4882 GR L17BM Inspection, certificate EN 10204-3.1/ISO 10474-3.1
We also can supply ASTM A453 Gr. 660 Stud bolt bolts with ASTM A194 Gr. 2HM nuts
BOLT 45 x 755 Stud Bolt A453‐660/2HM MR 0175
