Manufacture of SA 453 Grade 660 Class A/B/C/D Stud Bolts for chemical, marine, oil and gas industry
ASTM A453 Grade 660 Stud Bolts are meant for temperature applications. The fasteners of this grade are classified into class A, B, C and D. The material has carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, titanium, aluminum, vanadium and boron. The ASTM A453 Grade 660 bolts get the strength and corrosion resistance from the material combination.
The 24% nickel and 13% chromium in the composition makes the material strong and corrosion resistance. The ASTM A286 Bolts have 895MPa minimum tensile strength for all classes. The classes A, B and C have minimum yield strength of 585MPa and the class D has 725MPa minimum yield strength. The elongation rate of the astm a453 660 nuts is 15% and the hardness ranges from 248 to 341 BHN. The material is heat treated and is made to have much tensile strength and hardness. The material and the fasteners are used in high temperature applications.
The A453 Gr 660 Class A/B/C/D Stud Bolts are used in nuclear power plants, thermal power generation plants, heat exchangers, boilers and in super heater elements. The ASTM A453 Gr 660 Stainless Steel Bolt is also used in engine parts, exhausts, manifolds and other high temperature applications. As a leading manufacturer and supplier of the different types of A286 Fasteners, we supply all types, shapes and sizes of the fasteners. Please feel free to contact us for more information and pricing.
Table Of Content
A453 Grade 660 Fasteners |
Price |
ASTM A453 Grade 660 Cl.A Stud bolts |
FOB Price:US $800-1600 / Ton |
High quality a453 Grade 660 stud bolts |
FOB Price:50 Sets (Min. Order) |
Incoloy A286 A453 660 ISO9001 DIN933 Hex Bolts |
FOB Price:US $0.05-20 / Piece |
Grade 660 Bolts Element |
Content % |
|---|---|
| Grade 660 UNS S66286 | |
| Carbon | 0.08 max |
| Manganese | 2.00 max |
| Phosphorus | 0.04 max |
| Sulfur | 0.03 max |
| Silicon | 1.00 max |
| Nickel | 24.00 - 27.00 |
| Chromium | 13.50 - 16.00 |
| Molybdenum | 1.00 - 1.50 |
| Titanium | 1.90 - 2.35 |
| Aluminum | 0.35 max |
| Vanadium | 0.10 - 0.50 |
| Boron | 0.001 - 0.010 |
Standards |
Designation |
|---|---|
ASTM |
A453 |
Melt Origin |
East Europe/South America/Korea/Japan |
|---|---|
Dimensions |
ASME B18.2.1, B18.3 |
Grade 660 Bolts Product Origin |
Made in India |
Certification |
Dual Certified As per ASTM & ASME Codes |
Grade 660 Bolts Threads Configuration |
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
Additional Requirements |
NACE MR0103 / MR0175 / ISO 15156 Compliance |
Additional Certifications |
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Mandatory Requirements |
Free from Mercury & Radioactive Contamination |
We Keep Bulk Stock of astm a453 660 Nuts at our stockyard, contact us for A286 bolts Free Sample & stock list
ASTM A453 Grade 660 Bolts
SA 453 Grade 660 Class A Stud Bolt
astm a453 660 nuts
ASTM A286 Bolts
| 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 Bolts | 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 |
AISI |
UNS |
BS |
Wr No. |
En Name |
DIN EN |
JIS |
AMS |
ASTM |
other names |
Additional Requirements |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
Grade 660 Bolts |
S 66286 |
HR 51 |
1.4944 |
X6NiCrTiMoV26-15 |
10269 |
SUS 660 |
5726 |
ASTM A453 GRADE 660A |
incoloy a286 |
NACE MR-0175 |
|
| Grade | Class | Solution Treatment | Hardening Treatment |
|---|---|---|---|
| Grade 660 Bolts | 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 |
| Grade | Class A | Class B | Class C | Class D |
|---|---|---|---|---|
| Grade 660 Bolts | 660A | 660B | 660C | 660D NR |
| Grade | Class | Test Temperature | Stress, Min | Time to Rupture, min, hA | Elongation, min, % | ||
|---|---|---|---|---|---|---|---|
| °F | °C | Ksi | Mpa | ||||
| Grade 660 Bolts | A, B and C | 1200 | 650 | 56 | 385 | 100 | 5 |
| Property | Description |
|---|---|
| Class A Bolts | ... |
| Class B Bolts | ... |
| Class C Bolts | ... |
| Class D Bolts | ... |
Take the reference of our quality and timely delivery from our clients in following cities
| Belgium, Dammam -KSA, Indonesia, Philippines | Fasteners Alloy 286 ASTM A453 Grade 660 Stud Bolts/ Full Threaded Rod |
| Thailand, Qatar, France, Europe | A453 Grade 660, A453 grade 660 Stud Bolts, ASTM A453 Grade 660 Class a/B/C/D Stud Bolts |
| Malaysia, Czechia, Germany, Thailand | A286 A453 Grade 660 B638 Stainless Steel tensile Class a/B/C/D Stud Bolts Full Thread Rod |
| Finland, Malaysia, USA, Bangladesh | Heat Treatment Stainless Steel ASTM A286 A453 Grade 660 Stud Bolts / Full Threaded Rod |
| Brazil, South Africa, Saudi Arabia (KSA), Kuwait | Stainless Steel ASTM A286 A453 B638 Grade 660 grade a B C D Stud Bolts/ Full Threaded with Two Nuts |
| Singapore, Bahrain, South Africa | Stud Bolts Hex Bolts ASTM A453 Grade 660 Alloy Steel C/W Hex Nuts |
| Nigeria, Philippines, Australia, UK | A453 Grade 660 Stainless Steel Bolts and Nuts fasteners |
| UAE, Oman, Malaysia, Hong Kong | Steel A286 Custom Made Black Hexagon Bolts |
| Singapore, Chile, Italy, Iran | A286 Duplex Stainless Steel Wood Screw |
| Malaysia, United Arab Emirates (UAE), Turkey, Norway | CNC Turning Machining A286 660 Alloy 12-Point Flange Self Drilling Screw |
| Dubai, Netherlands, Malaysia, Russia | A286 Duplex Stainless Steel Hex Flange Nut |
| UK, Egypt, Spain, Mexico | Stainless Steel A286 A453 660 grade a B C D Stud Bolts with Two Nuts |
| UAE, United Kingdom -UK, Europe, Malaysia | Fully Threaded Stud Bolts Incoloy A286 C/W 2 X Heavy Hex Nut |
| Ellington -United States, UK, Canada, Poland | M6 M8 Duplex A286 Stainless Steel Stud Bolts |
| Product | DIN | ISO | ASME | UNI | |
| Imperial | Metric | ||||
| Studs | 976 | -- | B18.31.2 | B18.31.1M | 6610 |
| Hex Bolts | 931 | 4014 | B18.2.1 | B18.2.3.5M | 5737 |
| Heavy Hex Bolts | 6914 | 7412 | B18.2.1 | B18.2.3.7M | 5712 |
| Hex Cap Screws | 933 | 4017 | B18.2.1 | B18.2.3.1M | 5739 |
| Socket Head Cap Screws | 912 | 4762 | B18.3 | B18.3.1M | 5931 |
| Set Screws | 916 | 4029 | B18.3 | B18.3.1M | 5929 |
| Countersunk Screws | 7991 | 10642 | B18.3 | B18.3.1M | 5933 |
| Hex Nuts | 934 | 4032 | B18.2.2 | B18.2.4.1M | 5588 |
| Heavy Hex Nuts | 6915 | 4775 | B18.2.2 | B18.2.4.6M | 5713 |
Grade 660 Bolts Diameter (D) |
Body Diameter (D) |
Across the Flats (F) |
Across the Corners © |
Head Height (H) |
Thread Lengths (T) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
MAX |
MIN |
MAX |
MIN |
MAX |
MIN |
MAX |
MIN |
< 6” |
> 6” |
|
1/2 |
0.515 |
0.482 |
0.875 |
0.85 |
1.01 |
0.969 |
0.364 |
0.302 |
1.25 |
1.5 |
5/8 |
0.642 |
0.605 |
1.062 |
1.031 |
1.227 |
1.175 |
0.444 |
0.378 |
1.5 |
1.75 |
3/4 |
0.768 |
0.729 |
1.25 |
1.212 |
1.443 |
1.383 |
0.524 |
0.455 |
1.75 |
2 |
7/8 |
0.895 |
0.852 |
1.438 |
1.394 |
1.66 |
1.589 |
0.604 |
0.531 |
2 |
2.25 |
1 |
1.022 |
0.976 |
1.625 |
1.575 |
1.876 |
1.796 |
0.7 |
0.591 |
2.25 |
2.5 |
1 1/8 |
1.149 |
1.098 |
1.812 |
1.756 |
2.093 |
2.002 |
0.78 |
0.658 |
2.5 |
2.75 |
1 1/4 |
1.277 |
1.223 |
2 |
1.938 |
2.309 |
2.209 |
0.876 |
0.749 |
2.75 |
3 |
1 3/8 |
1.404 |
1.345 |
2.188 |
2.119 |
2.526 |
2.416 |
0.94 |
0.81 |
3 |
3.25 |
1 1/2 |
1.531 |
1.47 |
2.375 |
2.3 |
2.742 |
2.622 |
1.036 |
0.902 |
3.25 |
3.5 |
1 3/4 |
1.785 |
1.716 |
2.75 |
2.662 |
3.175 |
3.035 |
1.196 |
1.054 |
3.75 |
4 |
2 |
2.039 |
1.964 |
3.125 |
3.025 |
3.608 |
3.449 |
1.388 |
1.175 |
4.25 |
4.5 |
2 1/4 |
2.305 |
2.214 |
3.5 |
3.388 |
4.041 |
3.862 |
1.548 |
1.327 |
4.75 |
5 |
2 1/2 |
2.559 |
2.461 |
3.875 |
3.75 |
4.474 |
4.275 |
1.708 |
1.479 |
5.25 |
5.5 |
2 3/4 |
2.827 |
2.711 |
4.25 |
4.112 |
4.907 |
4.688 |
1.869 |
1.632 |
5.75 |
6 |
3 |
3.081 |
2.961 |
4.625 |
4.475 |
5.34 |
5.102 |
2.06 |
1.815 |
6.25 |
6. |
We stock and supplies ASTM A453 Gr.660 Cl.B and D Material and a286 fasteners as per international standards & specifications
**Grade 660 Bolts All measurements in millimeters**
Grade 660 Bolts NOMINAL SIZE (D) |
BODY DIAMETER |
HEAD THICKNEASTM A193 |
ACROASTM A193 THE FLATS |
ACROASTM A193 CORNERS |
||||
|---|---|---|---|---|---|---|---|---|
D (MAX) |
D (MIN) |
H (MAX) |
H (MIN) |
F (MAX) |
F (MIN) |
C (MAX) |
C (MIN) |
|
m10 |
10.00 |
9.78 |
6.63 |
6.17 |
17.00 |
15.73 |
18.48 |
17.77 |
m12 |
12.00 |
11.73 |
7.76 |
4.24 |
19.00 |
17.73 |
20.78 |
20.03 |
m14 |
14.00 |
13.73 |
9.09 |
8.51 |
22.00 |
20.67 |
24.25 |
23.35 |
m16 |
16.00 |
15.73 |
10.32 |
9.68 |
24.00 |
23.67 |
27.71 |
26.75 |
m20 |
20.00 |
19.67 |
12.88 |
12.12 |
30.00 |
29.16 |
34.64 |
32.95 |
m24 |
24.00 |
23.67 |
15.44 |
14.56 |
36.00 |
35.00 |
41.57 |
39.55 |
m30 |
30.00 |
29.67 |
19.48 |
17.92 |
46.00 |
45.00 |
53.12 |
50.85 |
m36 |
36.00 |
35.61 |
23.38 |
21.63 |
55.00 |
53.80 |
63.51 |
60.79 |
m42 |
42.00 |
41.38 |
26.97 |
25.03 |
65.00 |
62.90 |
75.06 |
71.71 |
m48 |
48.00 |
47.38 |
31.07 |
28.93 |
75.00 |
72.60 |
86.60 |
82.76 |
m56 |
56.00 |
55.26 |
36.2 |
33.80 |
85.00 |
82.20 |
98.15 |
93.71 |
m64 |
64.00 |
63.26 |
41.32 |
38.68 |
95.00 |
91.80 |
109.70 |
104.65 |
m72 |
72.00 |
71.26 |
46.45 |
43.55 |
105.00 |
101.40 |
121.24 |
115.60 |
m80 |
80.00 |
79.26 |
51.58 |
48.42 |
115.00 |
111.00 |
132.72 |
126.54 |
m90 |
90.00 |
89.13 |
57.74 |
54.26 |
130.00 |
125.50 |
150.11 |
143.07 |
m100 |
90.00 |
99.13 |
63.9 |
60.10 |
145.00 |
140.00 |
167.43 |
159.60 |
Always refer ASTM A453 Gr 660 Stainless Steel Bolt torque table, buy a286 screws at an affordable price in India
Most Common Types Of a286 fasteners
ASTM A453 Grade 660 Class A Anchor Bolts |
ASTM A453 660 Stud Bolts |
ASTM A 453 Grade 660 Heavy Hex Bolts |
Grade 660 Shoulder Bolts |
ASTM A 453 Eye Bolts |
ASTM A 453 Grade 660 Class B Stud Bolts |
ISO Approved ASTM A453 U Bolts |
SS Grade 660 Plow Bolts |
Grade 660 Step Bolts |
Stainless Steel Grade 660 Studs |
Class D Nuts |
Grade 660 Gradeub Screw |
ASTM A453 stud Bolts |
A453 Grade 660 Hex Nut |
Stainless Steel Grade 660 Threaded Rod |
ASTM A453 J Bolts |
ASTM A 453 Grade 660 Class B Lag Bolts |
ASTM A453 stud Bolts |
ASTM A 453 Tie Rod |
ASTM A 453 Grade 660 Class D Studs |
Stainless Steel Grade 660 Draw Bolts |
Grade 660 Hanger Bolts |
Grade 660 Stainless Steel Stud Bolts |
ASTM A453 660 Class D Stud Bolts |
check A286 AISI 660 Stainless Steel Fasteners Specification and Chemical Composition chart online
| Tensile Class | Brinell Hardness Number | Approximate Rockwell Hardness B & C | |
| min | max | ||
| A, B and C | 248 - 341 | 24 HRC | 27 HRC |
| D | 248 - 321 | 24 HRC | 35 HRC |