ASTM A320 Bolts SUPPLIER, STOCKISTS

The A320 Grade L7 Stud material is to be evaluated in the following parameters: impact testing, tension testing, and hardness testing, in accordance with the technical specifications of the A320 Grade L7 Bolts. Several grades of stainless steel, including those of the austenitic and ferritic grades, are covered by the A320 Gr L7 Hdg specification. India-based producer of ASTM A320 bolts.

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ASTM A320 Grade L7 Nuts, Supplies a full range of ASTM A320 L7 Stud Bolts, ASTM A320 Stainless Steel Bolts at Factory price in India

The minimum Charpy impact value for ASTM A320 Bolts at -150° F is 20 ft-lbf. This material is designed for low-temperature use. High temperature or high pressure & corrosion resistant steels must be durable and used in ASTM A320 Hex Bolts. A320 Stud Bolts come in a variety of sizes and designs. Due to their unique features & specifications, our superior grade ASTM A320 Grade L7 AS Bolts are in high demand in the market.

astm A320 Grade L7 Material, ASTM A320 Grade L7m Bolts, carries a complete line of ASTM A320 Grade L7 Studs, astm a320 l7m stud bolts in mumbai, India

ASTM A320 Nuts
ASTM A320 Nuts
ASTM A320 Bolts
ASTM A320 Bolts
ASTM A320 Stud Bolts
ASTM A320 Stud Bolts

 

Both alloy steel and stainless steel bolting materials for use in low temperature applications are covered by the ASTM A320 Grade L7m Material specification. The uses for the ASTM A320 L7 Stud Bolts include environments with temperatures as low as -150oF. At this temperature, the ASTM A320 Grade L7m Bolts and ASTM A320 Bolts both have a minimum Charpy impact value of 15 ft-lb.

The fittings covered by Standard ASTM A320 Grade L7 Stud Bolts include bars, bolts, screws, studs, and stud bolts made of alloy that has been rolled, forged, or strain-hardened. These ASTM A320 Gr L7 Stud Bolt have been applied to pressure vessels, valves, flanges, and fittings, among other things. The 8UN thread series is specified on the A320 Gr L7 Material fastener, which is known to measure larger than 1" in diameter, similarly to the ASTM A193 standard. Standard ASTM A320 Grade L7 Nuts require alloy steel to go through AISI 4140/4142 Quenching and Tempering.

Price of Astm A320 Bolts
ASTM A320 Bolts
Price
alloy steel types astm a320 l7/a193 b7 stud bolts
US$ 1.35-US$ 1.45 / Piece
manufacture astm a320 l7/a193 b7 stud bolts
US$ 0.005-US$ 0.10 / Piece
ASTM A320 / A320M Heavy Hex Bolt M38
US$ 0.30-US$ 0.50 / Piece
A320 l7 l7m stud bolt m16
US$ 0.01-US$ 0.05 / Piece
heavy hex bolts ASTM A320 Grades L7 L43
US$ 0.02-US$ 0.50 / Piece
supplier astm a320 stud
US$ 0.01-US$ 0.05 / Piece
A320 L7M 3 3/4″ ZP/ZL Threaded bar and bolts
US$ 1,500.00-US$ 1,900.00 / Metric Ton
astm a320 l7m stud bolt
US$ 0.01-US$ 1.00 / Piece
Good quality heavy hex bolts ASTM A320 Grades L7 L43
US$ 0.01-US$ 0.10 / Piece
astm a320 grade L7 bolts
US$ 0.15-US$ 6.59 / Set

 

Astm A320 Bolts Specification
Standards
Designation
ASTM A320 : Grade L7M, L7, B8, B8M
Thread Requirements of Astm A320 Bolts UNC & UNF, ASME B1.1, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge)
Astm A320 Bolts Manufacturing Process Cold Heading, Wire Drawing, Heat Treatment, Insert tapping, Inspection, Surface Plating, Packing
Astm A320 Bolts Delivery time custom product will according to special requirement, Regular product is about 7-15 days
ASTM A320 L7M Bolts Coatings Cadmium, Black Oxide, Teflon, Galvanized, Zinc, Xylan, Others Upon Request
Astm A320 Bolts Head Square, Hex, Hex flange, Round, T-head, Flat & Triangular etc
ASTM A320 L7M Bolts Neck type Square, Hex, Oval, Triangular & Knurled etc
Astm A320 Bolts Dimensions
ASME B18.3, B18.2.1
Melt Origin
South America/East Europe/Japan/Korea
Product Origin
Made in India
Astm A320 Bolts Threads Configuration
B1.13M 6h Metric Coarse Threads and ASME B1.1 2A/3A Inch Unified Threads
Astm A320 Bolts Certification
Dual Certified As per ASME & ASTM Codes
Additional Certifications
Merkblatt AD 2000 W2 Certified, PED 97/23/EC Certified
Mandatory Requirements
Free from Radioactive & Mercury Contamination
Additional Requirements
NACE MR0175 / MR0103 /ISO 15156 Compliance
Astm A320 Bolts Samples Yes
Payment Terms Western Union, T/T, Paypal, Trade Assurance 30% deposit & balance before shipping or L/C

 

Related ASTM A320 Bolts Specifications
  • ASTM A193 / A193M – 16 : Specifications for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
  • ASTM A1082 / A1082M – 16 : Specifications for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
  • ASTM F2281 : Specifications for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications Designation
  • ASTM A1014 / A1014M – 16 : Specifications for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
  • ASTM A962 / A962M – 16a : Specifications for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
  • ASTM A638 / A638M : Specifications for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service

 

A320 Heavy Hex Bolts Dimensions
ASTM A320 Heavy Hex Bolt Dimension
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.

 

India’s Largest Manufacturer of A320 B8 Stud, A320 Gr L7 Stud, A320 Gr L7 Material, A320 Gr L7 Hdg, ASTM A320 Gr L7 Stud Bolt in mumbai, India

 

ASTM A320 Bolt Dimensions

ASTM A320 Hex Bolt Dimension

**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

 

ASTM A320 Bolts Type
SA320 Hex Bolts
SA320 Hex Bolts
A320 Grade L7 Heavy Hex Bolts
A320 Grade L7 Heavy Hex Bolts
A320 Anchor Bolts
A320 Anchor Bolts
ASTM A320 Lag Bolts
ASTM A320 Lag Bolts
ASTM A320 Carriage Bolts
ASTM A320 Carriage Bolts
ASTM A320 Allen Cap Bolt
ASTM A320 Allen Cap Bolt
A320 B8 Gr Class 1 Flange Bolts
A320 B8 Gr Class 1 Flange Bolts
ASTM A320 Gr L7 Countersunk Bolts
ASTM A320 Gr L7 Countersunk Bolts
ASME SA320 Hex Head Bolts
ASME SA320 Hex Head Bolts
ASTM A320 Square Bolts
ASTM A320 Square Bolts
ASTM A320 L7 Grade Eye Bolts
ASTM A320 L7 Grade Eye Bolts
ASME SA320 U Bolts
ASME SA320 U Bolts

 

A320 Gr L7 Stud Bolts Types
ASTM A320 L7 Double Ended Studs
ASTM A320 L7 Double Ended Studs
A320 L7 Grade Stud Bolts
A320 L7 Grade Stud Bolts
ASTM A320 Gr. L7 Threaded Rod
ASTM A320 Gr. L7 Threaded Rod
SA320 Tie Bars
SA320 Tie Bars
ASME SA320 Tie Rods
ASME SA320 Tie Rods

 

ASTM A320 Nuts Types
ASTM A320 Gr L7 T Nuts
ASTM A320 Gr L7 T Nuts
A320 Acorn Nuts
A320 Acorn Nuts
ASTM A320 Nyloc Nuts
ASTM A320 Nyloc Nuts
L7M Serrated Flange Nuts
L7M Serrated Flange Nuts
ASTM A320 Panel Nuts
ASTM A320 Panel Nuts
SA320 Wing Nuts
SA320 Wing Nuts
ASME SA320 Dome Nuts
ASME SA320 Dome Nuts
SS A320 Coupling Nuts
SS A320 Coupling Nuts
ASME SA320 Square Nuts
ASME SA320 Square Nuts
ASTM A320 Gr L7 Hex Head Nuts
ASTM A320 Gr L7 Hex Head Nuts
ASME SA320 Eye Nuts
ASME SA320 Eye Nuts
A320 Hex Nuts
A320 Hex Nuts
ASTM A320 Grade L7 Lock Nut
ASTM A320 Grade L7 Lock Nut
SA320 Heavy Hex Nuts
SA320 Heavy Hex Nuts
L7M Nylon Insert Nuts
L7M Nylon Insert Nuts
A320 Grade L7 Self Locking Nuts
A320 Grade L7 Self Locking Nuts

 

ASTM A320 Bolt Torque Chart
BOLTS
DIA
Torque FT-LBS
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2
16
36
52
9/16
23
53
75
5/8
31
73
104
3/4
55
129
184
7/8
71
166
237
1
107
249
356
1.1/8
127
297
424
1.1/4
179
417
596
1.3/8
186
435
622
1.1/2
246
574
821
1.9/16
168
392
560
1.5/8
191
445
636
1.3/4
240
561
801
1.7/8
298
696
994
2
366
853
1219
2.1/4
529
1234
1762
2.1/2
733
1709
2442
2.3/4
986
2300
3285
3
1289
3008
4297

 

BOLTS
DIA
Torque Nm
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2
22
49
71
9/16
31
72
102
5/8
42
99
141
3/4
75
175
249
7/8
96
225
321
1
145
338
483
1.1/8
172
403
575
1.1/4
243
565
808
1.3/8
252
590
843
1.1/2
334
778
1113
1.9/16
228
531
759
1.5/8
259
603
862
1.3/4
325
761
1086
1.7/8
404
944
1348
2
496
1157
1653
2.1/4
717
1673
2389
2.1/2
994
2317
3311
2.3/4
1337
3118
4454
3
1748
4078
5826

 

ASME SA320 Chemical Composition
Element
L7 (AISI 4140)
L43 (AISI 4340)
B8 (AISI 304)
B8M (AISI 316)
Carbon
0.37 - 0.49%
0.38 - 0.43%
0.08% max
0.08% max
Manganese
0.65 - 1.10%
0.75 - 1.00%
2.00% max
2.00% max
Phosphorus, max
0.035%
0.035%
0.045%
0.045%
Sulfur, max
0.040%
0.040%
0.030%
0.030%
Silicon
0.15 - 0.35%
0.15 - 0.35%
1.00% max
1.00% max
Chromium
0.75 - 1.20%
0.70 - 0.90%
18.0 - 20.0%
16.0 - 18.0%
Nickel
1.65 - 2.00%
8.0 - 11.0%
10.0 - 14.0%
Molybdenum
0.15 - 0.25%
0.02 - 0.30%
2.00 - 3.00%

 

ASTM A320 Equivalent Grade
L7
AISI 4140/4142 Quenched and tempered
L7M
AISI 4145 Quenched and tempered
L43
AISI 4340 Quenched and tempered
B8 Class 1
AISI 304, carbide solution treated
B8 Class 2
AISI 304, carbide solution treated, strain hardened
B8M Class 1
AISI 316, carbide solution treated
B8M Class 2
AISI 316, carbide solution treated, strain hardened

 

ASTM A320 Grade L7 Mechanical Properties
Bolts Grade
Bolts Size
Bolts Tensile ksi, min
Bolts Yield, ksi, min
Bolts Elong, %, min
Bolts RA % min
Charpy Impact
20-ft-lbf
@ temp
L7
Up to 2-1/2
125
105
16
50
-150° F
L43
Up to 4
125
105
16
50
-150° F
B8 Class 1
All
75
30
30
50
N/A
B8 Class 2
Up to 3/4
125
100
12
35
N/A
7/8 - 1
115
80
15
35
N/A
1-1/8 - 1-1/4
105
65
20
35
N/A
1-3/8 - 1-1/2
100
50
28
45
N/A
B8M Class 1
All
75
30
30
50
N/A
B8M Class 2
Up to 3/4
110
95
15
45
N/A
7/8 - 1
100
80
20
45
N/A
1-1/8 - 1-1/4
95
65
25
45
N/A
1-3/8 - 1-1/2
90
50
30
45
N/A

 

A320 Bolts and Nuts Application
  •  ASTM A320 Bolts uses in Spiral Welded tube for burner pipes and flues
  •  ASTM A320 Fasteners uses in Pharmaceuticals
  •  ASME SA320 Nuts uses in Power Generation
  •  SS A320 Hex Nuts uses in Heat Exchangers
  •  A320 Bolts uses in Sea Water Equipment
  •  A320 Grade L7 Bolts uses in Petrochemicals
  •  ASTM A320 Bolts uses in Aircraft Exhaust fastenersonline
  •  A320 Bolts uses in Pharmaceutical Equipment
  •  SA320 Studs uses in Off-Shore Oil Drilling Companies
  •  SA320 Stud Bolts uses in Specialty Chemicals
  •  A320 Heavy Hex Bolts uses in Gas Processing

 

ASTM A320 Bolts and Nuts Other Types

ISO Approved ASTM A320 U Bolts
ASTM A320 J Bolt
ASTM A 320 Eye Bolt Supplier
ASME SA320 L7M Grub Screw
ASTM A320 Anchor Bolt
ASTM A 320 L7 Studs Manufacturer
ASTM A 320 L7 Heavy Hex Bolts
A320 L7M Nuts Manufacturer
ASTM A320 L7 Lag Bolt Exporter
ASTM A320 Stud Bolt
ASTM A 320 L7 Step Bolt
A320 Gr L7 Stud Bolts
ASTM A320 L7M Tie Rod
A320 L7 Hex Nut
ASTM A320 Gr. L7 Threaded Rod
L7M Hanger Bolt
SA320 Nuts Exporter
ASTM A320 L7M Stud Bolts
ASTM A320 Grade L7 Stud Bolt
A320 Gr L7 Stud Bolts Supplier
A320 L7M Stainless Steel bolts
A 320 Plow Bolt Distributor
A320 L7 Hex Nut Supplier
A320 L7M Shoulder Bolt

 

View ASTM A320 Bolt Dimensions & weight, ASTM A320 L7M Bolt Specification and Equivalent.
Buy ASTM A320 Grade L7 Stud Bolts, A320 Grade L7 Bolts, ASTM A320 Grade L7m Material at factory price in India

 

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