Manufacture of SA 453 Grade 660 Class B/C/D Nuts 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 grade 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 Stainless Steel Fasteners, we supply all types, shapes and sizes of the fasteners. Please feel free to contact us for more information and pricing.
Price List of ASTM A453 Grade 660 Stud Bolts
ASTM A453 Grade 660 Fasteners |
Price |
ASTM A453 Gr 660 Cl.A Stud bolt |
FOB Price:US $800-1600 / Ton |
High quality astm a453 gr 660 stud bolt |
FOB Price:50 Sets (Min. Order) |
Incoloy A286 A453 660 ISO9001 DIN933 Hex Bolt |
FOB Price:US $0.05-20 / Piece |
High quality b7 b16 stud bolt |
FOB Price:US $0.015-0.68 / Piece |
Stainless Steel ASTM A193 B7M Full Thread Stud Bolt |
FOB Price:US $0.1-15 / Piece |
Chemical Formula Of ASTM A453 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 |
Specification List Of ASTM A286 Bolts
Standards |
Designation |
|---|---|
ASTM |
A453 |
Melt Origin |
East Europe/South America/Korea/Japan |
|---|---|
Dimensions |
ASME B18.2.1, B18.3 |
Product Origin |
Made in India |
Certification |
Dual Certified As per ASTM & ASME Codes |
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 Gr 660 Cl.A Stud bolt at our stockyard, contact us for Free Sample & stock list
Mechanical Behaviour Of astm a453 grade 660 nuts
| 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 |
A453 Gr 660 Nut Equivalent Grade
AISI |
UNS |
BS |
Wr No. |
En Name |
DIN EN |
JIS |
AMS |
ASTM |
other names |
Additional Requirements |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
660 |
S 66286 |
HR 51 |
1.4944 |
X6NiCrTiMoV26-15 |
10269 |
SUS 660 |
5726 |
ASTM A453 GRADE 660A |
incoloy a286 |
NACE MR-0175 |
|
Heat Treatment Requirements of ASTM A453 Grade 660 Class A/B/C/D
| 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 |
Marking Requirements of ASTM A453 Grade 660 Class A/B/C/D
| Grade | Class A | Class B | Class C | Class D |
|---|---|---|---|---|
| Grade 660 | 660A | 660B | 660C | 660D NR |
Stress Rupture Requirements of ASTM A453 Grade 660 Class A/B/C/D
| Grade | Class | Test Temperature | Stress, Min | Time to Rupture, min, hA | Elongation, min, % | ||
|---|---|---|---|---|---|---|---|
| °F | °C | Ksi | Mpa | ||||
| Grade 660 | A, B and C | 1200 | 650 | 56 | 385 | 100 | 5 |
Tensile Class of ASTM A453 Grade 660
| Property | Description |
|---|---|
| Class A | ... |
| Class B | ... |
| Class C | ... |
| Class D | ... |
A453 Gr. 660 A Bolts Standards
| 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 |
Dimensions table of A453 Gr 660 Heavy Hex 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. |
A453 Gr. 660 A Bolts Size Chart
We stock and supplies ASTM A453 Gr.660 Cl.B and D as per international standards & specifications
Dimensions Standard of ASTM A453 Gr 660 Cl.A Stud bolt
**All measurements in millimeters**
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 SA 453 Grade 660 Material at an affordable price in India
Most Common Types Of ASTM A453 Gr 660 Stainless Steel Bolt
ASTM A453 GR 660 Class A Anchor Bolt |
ASTM A453 660 Stud Bolts |
ASTM A 453 GR 660 Heavy Hex Bolts |
Grade 660 Shoulder Bolt |
ASTM A 453 Eye Bolt |
ASTM A 453 GR 660 Class B Stud Bolt |
ISO Approved ASTM A453 U Bolts |
SS Grade 660 Plow Bolt |
Grade 660 Step Bolt |
Stainless Steel GR 660 Studs |
Class D Nuts |
GR 660 Grub Screw |
ASTM A453 stud bolts |
A453 Grade 660 Hex Nut |
Stainless Steel GR 660 Threaded Rod |
ASTM A453 J Bolt |
ASTM A 453 GR 660 Class B Lag Bolt |
ASTM A453 stud bolts |
ASTM A 453 Tie Rod |
ASTM A 453 GR 660 Class D Studs |
Stainless Steel Gr 660 Draw Bolt |
Grade 660 Hanger Bolt |
GR 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