ASTM A453 Grade 660 Stud Bolts is a precipitation hardening stainless steel fastener. Austenitic alloy astm a453 grade 660 nuts are known for its impressive tensile strength properties even when exposed to high temperatures. Therefore these stainless steel ASTM A453 Grade 660 bolts could be used up to a temperature of up to 700°C.
China’s Largest ASTM A453 Grade 660 bolts, ASTM A286 Bolts, astm a453 grade 660 nuts, A286 Stainless Steel Fasteners suppliers

ASTM A453 Grade 660 Stud Bolts

A286 Bolts

ASTM A453 Grade 660 bolts
Keep a bulk stock of A453 Gr 660 Nut, A453 Grade 660 Class A, A453 Gr 660 Class A/B/C/D Stud Bolts, a286 metric socket head cap screws
The UNS 66286 Threaded Rod is sold under other trade names such as UNS S66286, A-286 alloy and Alloy 660. The alloy gains its high tensile strength from a high degree of uniformity. The ASTM A286 Bolts has an impressive minimum yield strength of 105,000 psi. Since the SA 453 Grade 660 Material is able to maintain its high strength even at elevated temperatures, these fasteners and bolts are commonly used in high temperature settings such as Jet engines, Turbocharger components as well as gas turbines.
Apart from conforming to the chemical composition requirements of the ASTM A453 specification, the mechanical properties of the ASTM A453 Gr 660 Stainless Steel Bolt are also to adhere to the specification. This is why, the A286 Stainless Steel Fasteners have to be subjected to several tests such as tension test, stress rupture test, and hardness test. Materials produced under this specification, including the ASTM A453 Gr 660 Cl.A Stud bolt has to conform to elongation, reduction of area, yield strength, tensile strength in addition to the Brinell hardness, and Rockwell hardness requirements. Hardening and solution treatment requirements for each material class i.e. A453 Gr 660 Class A/B/C/D Stud Bolts are also specified.
Grade
|
Class A
|
Class B
|
Class C
|
Class D
|
---|---|---|---|---|
Grade 660
|
BPF 660A
|
BPF 660B
|
BPF 660C
|
BPF 660D NR
|
view astm a286 grade 660 specification, Are You Looking For A453 Gr. 660 A Bolts, ASTM A453 Gr 660 Cl.A Stud bolt, A453 660 Class D and Class C bolts manufacturer
Standards
|
Designation
|
---|---|
ASTM
|
A453 / A638
|
Dimensions
|
ASME B18.2.1, B18.3
|
---|---|
Melt Origin
|
East Europe/South America/Korea/Japan
|
Product Origin
|
Made in China
|
Threads Configuration
|
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
|
Certification
|
Dual Certified As per ASTM & ASME Codes
|
Additional Certifications
|
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
|
Mandatory Requirements
|
Free from Mercury & Radioactive Contamination
|
Additional Requirements
|
NACE MR0103/MR0175/ISO 15156 Compliance
|
Check ASTM a453 grade 660 material equivalent, Reliable SA 453 Grade 660 Material, ASTM A453 Gr 660 Stainless Steel Bolt Exporter
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
|
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
|
Element
|
Grade 660
|
---|---|
Carbon
|
0.08 max
|
Manganese
|
2.00 max
|
Phosphorus, max
|
0.040 max
|
Sulfur, max
|
0.030 max
|
Silicon
|
1.00 max
|
Nickel
|
24.0-27.0
|
Chromium
|
13.5-16.0
|
Molybdenum
|
1.00-1.50
|
Tungsten
|
…
|
Titanium
|
1.9-2.35
|
Columbium *
|
…
|
Aluminum
|
0.35 max
|
Vanadium
|
0.10-0.50
|
Boron
|
0.001-0.010
|
Copper
|
–
|
- ASTM A453 Gr 660 Cl.A Stud bolt: Price US $800-1600 / Ton
- best quality Astm A453-660 Stud Bolt With Heavy Hex Price 10 Kilograms (Min. Order)
- Stainless Steel DIN 975 Gr 4.8 Full Thread Stud Bolt: Price US $0.06-30 / Piece
- special alloy A453 gr 660 nut: Price:50 Sets (Min. Order)
- Stainless Steel ASTM A193 B7M Full Thread Stud Bolt: Price:US $0.1-15 / Piece
- Incoloy A286 A453 660 ISO9001 DIN933 Hex Bolt: Price US $0.05-20 / Piece
- High quality astm a453 gr 660 stud bolt: Price US $0.015-0.68 / Piece
- ASTM A 453 GR.660 Bolts: Price US $0.015-0.68 / Piece
- A453 Gr. 660 A Bolts : Price US $0.001-0.005 /Piece
- High quality b7 b16 stud bolt: Price:US $0.015-0.68 / Piece

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
|
6.5
|

**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
|
a286 fasteners suppliers, buy ASTM A453 Grade 660 B bolts, A453-660 C and ASTM A453 Gr.660 Cl.B, Cl D stud bolt at lowest price
Grade | 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 neccessary 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 |
Grade
|
Class
|
Test Temperature
|
Stress, Min
|
Time to Rupture
|
Elongation
|
|
---|---|---|---|---|---|---|
Deg F [ Deg C ]
|
Ksi
|
Mpa
|
Min, h*
|
Min %
|
||
660
|
A, B & C
|
1200 [650]
|
56
|
385
|
100
|
5
|
- ISO 7089 Weight Chart (Plain Washer)
- ISO 4014 Weight Chart (Hexagon Head Bolt And Screw)
- ISO 4762 Weight Chart (Hexagon Socket Head Cap Screw)
- ISO 14583 Weight (Thread Forming Screw)
- DIN 938 Stud Dimensions (Stud And Stud Bolt)
- DIN 976 B Specification (Stud And Stud Bolt)
- ISO 4032 Weight Chart (Hexagon Nut)
- ISO 10642 Weight (Countersunk Screw)
|
|
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