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ASTM A325 (F3125) Heavy Hex Bolts
Item No.：
A-003
Category：
Summary
We passed the ISO9001:2000 quality management system certification in 2019, and organized and trained an elite team of professional production, inspection, sales and distribution.
Tel: +86-574-86520006
E-mail: info@nbasme.com，sales@nbasme.com
Description
ASTM A325 (F3125)
Note: In 2016, specification A325 was officially withdrawn by ASTM and replaced by ASTM F3125. Though the standard has changed to F3125, a few basic things remain the same. Bolt head markings will remain as they were, and Type 1 and Type 3 remain the same way to distinguish the makeup of the steel. The new F3125 specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852, and F2280.
This specification covers two types of quenched and tempered steel heavy hex structural bolts having a minimum tensile strength of 120 ksi for sizes 1.0 “ and less and 105 ksi for sizes over 1.0” to 1-1⁄2 “, inclusive.
Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 1-1⁄2 “. but with similar mechanical properties.
A325 Type Description
|
Type 1 |
Medium carbon, carbon boron, or medium carbon alloy steel. |
|
Type 2 |
Withdrawn in November 1991. |
|
Type 3 |
Weathering steel. |
Tensile Strength Requirements for Specimens Machined from Bolts
|
Size |
Tensile Strength, min, psi (MPa) |
Yield Strength, min, psi (MPa |
Elongation, in 4D, min, % |
Reduction of Area, min, % |
|
1/2 to 1 inch |
120 000 (825) |
92 000 (635) |
14 |
35 |
|
Over 1 inch to 1-1/2 |
105 000 (725) |
81 000 (560) |
14 |
35 |
A325 Type 1 Chemical Properties(%)
|
Carbon Steel |
||
|
Element |
Heat Analysis |
Product Analysis |
|
Carbon |
0.30-0.52 |
0.28-0.55 |
|
Manganese, min |
0.60 |
0.57 |
|
Phosphorus, max |
0.040 |
0.048 |
|
Sulfur, max |
0.050 |
0.058 |
|
Silicon |
0.15-0.30 |
0.13-0.32 |
|
Carbon Boron Steel |
||
|
Carbon |
0.30-0.52 |
0.28-0.55 |
|
Manganese, min |
0.60 |
0.57 |
|
Phosphorus, max |
0.040 |
0.048 |
|
Sulfur, max |
0.050 |
0.058 |
|
Silicon |
0.10-0.30 |
0.08-0.32 |
|
Boron |
0.0005-0.003 |
0.0005-0.003 |
|
Alloy Steel |
||
|
Carbon |
0.30-0.52 |
0.28-0.55 |
|
Manganese, min |
0.60 |
0.57 |
|
Phosphorus, max |
0.035 |
0.040 |
|
Sulfur, max |
0.040 |
0.045 |
|
Silicon |
0.15-0.35 |
0.13-0.37 |
|
Alloy Boron Steel |
||
|
Carbon |
0.30-0.52 |
0.28-0.55 |
|
Manganese, min |
0.60 |
0.57 |
|
Phosphorus, max |
0.035 |
0.040 |
|
Sulfur, max |
0.040 |
0.045 |
|
Silicon |
0.15-0.35 |
0.13-0.37 |
|
Boron |
0.0005-0.003 |
0.0005-0.003 |
A325 Chemical Requirements for Type 3 Heavy Hex Structural Bolts
|
Type 3 Bolts |
||||||
|
Element |
A |
B |
C |
D |
E |
F |
|
Carbon |
|
|
|
|
|
|
|
Heat Analysis |
0.33-0.40 |
0.38-0.48 |
0.15-0.25 |
0.15-0.25 |
0.20-0.25 |
0.20-0.25 |
|
Product Analysis |
0.31-0.42 |
0.36-0.50 |
0.14-0.26 |
0.14-0.26 |
0.18-0.27 |
0.19-0.26 |
|
Manganese |
|
|
|
|
|
|
|
Heat Analysis |
0.90-1.20 |
0.70-0.90 |
0.80-1.35 |
0.40-1.20 |
0.60-1.00 |
0.90-1.20 |
|
Product Analysis |
0.86-1.24 |
0.67-0.93 |
0.76-1.39 |
0.36-1.24 |
0.56-1.04 |
0.86-1.24 |
|
Phosphorus |
|
|
|
|
|
|
|
Heat Analysis |
0.035max |
0.06-0.12 |
0.035max |
0.035max |
0.035max |
0.035max |
|
Product Analysis |
0.040max |
0.06-0.125 |
0.040max |
0.040max |
0.040max |
0.040max |
|
Sulfur |
|
|
|
|
|
|
|
Heat Analysis |
0.040max |
0.040max |
0.040max |
0.040max |
0.040max |
0.040max |
|
Product Analysis |
0.045max |
0.045max |
0.045max |
0.045max |
0.045max |
0.045max |
|
Silicon |
|
|
|
|
|
|
|
Heat Analysis |
0.15-0.35 |
0.30-0.50 |
0.15-0.35 |
0.25-0.50 |
0.15-0.35 |
0.15-0.35 |
|
Product Analysis |
0.13-0.37 |
0.25-0.55 |
0.13-0.37 |
0.20-0.55 |
0.13-0.37 |
0.13-0.37 |
|
Copper |
|
|
|
|
|
|
|
Heat Analysis |
0.25-0.45 |
0.20-0.40 |
0.20-0.50 |
0.30-0.50 |
0.30-0.60 |
0.20-0.40 |
|
Product Analysis |
0.22-0.48 |
0.17-0.43 |
0.17-0.53 |
0.27-0.53 |
0.27-0.63 |
0.17-0.43 |
|
Nickel |
|
|
|
|
|
|
|
Heat Analysis |
0.25-0.45 |
0.50-0.80 |
0.25-0.50 |
0.50-0.80 |
0.30-0.60 |
0.20-0.40 |
|
Product Analysis |
0.22-0.48 |
0.47-0.83 |
0.22-0.53 |
0.47-0.83 |
0.27-0.63 |
0.17-0.43 |
|
Chromium |
|
|
|
|
|
|
|
Heat Analysis |
0.45-0.65 |
0.50-0.75 |
0.30-0.50 |
0.50-1.00 |
0.60-0.90 |
0.45-0.65 |
|
Product Analysis |
0.42-0.68 |
0.47-0.83 |
0.37-0.53 |
0.45-1.05 |
0.55-0.95 |
0.42-0.68 |
|
Vanadium |
|
|
|
|
|
|
|
Heat Analysis |
|
|
0.020min |
|
|
|
|
Product Analysis |
|
|
0.010min |
|
|
|
|
Molybdenum |
|
|
|
|
|
|
|
Heat Analysis |
|
0.06max |
|
0.10max |
|
|
|
Product Analysis |
|
0.07max |
|
0.11max |
|
|
|
Titanium |
|
|
|
|
|
|
|
Heat Analysis |
|
|
|
0.05max |
|
|
|
Product Analysis |
|
|
|
0.06max |
|
|
A325 Recommended nuts & washers
|
Nuts |
Washers |
|||
|
Type 1 |
Type 3 |
Type 1 |
Type 3 |
|
|
Plain Nuts |
Galvanized |
Plain |
||
|
A563C,C3,D,DH,DH3 |
A563DH |
A563C3,DH3 |
F436-1 |
F436-3 |
About Us
We will provide you with high-quality and satisfactory consulting services, and provide you with professional fastener solutions. The use of fasteners is determined according to the specific environment. Specific situations require specific analysis. Our fastener engineers with over 20 years experience are always available to help you. The distance between you and our factory is only a phone call or an email. Let us solve professional problems.
Bolts and nuts are always closely connected with the world. The use of the A325 is ubiquitous. Products rely on technology, and products achieve technology. The development of the world is integrated, and we also hope that our products can develop further towards globalization.
FAQ
1.Q: Can I visit your factory on site?
A: Sure. Our factory is in Ningbo, China. There is Ningbo Lishe International Airport in our city. The transportation here is very convenient. Please contact us in advance so we can better arrange for you.
2.Q: How about your product quality?
A: Our factory is equipped with its own testing room, and our products can also be tested by third-party testing agencies. The production process of the products is strictly carried out in accordance with the standards, and is inspected by the QC department before leaving the factory.
3.Q: How long is your lead time?
A: The production capacity of our factory can produce 60 containers a month, and the estimated cargo weight is about 1500 tons.
Online Message
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SERVICE HOTLINE:
Address：No. 100, Tianshen Road, Tiangu Industrial Zone, Jiulonghu Town, Zhenhai District, Ningbo, Zhejiang, China.
M.T.：+86-18967865853
TEL：+86-574-86520006
E-mail：info@nbasme.com，sales@nbasme.com
+86-18967865853
+86-574-86520006
info@nbasme.com
sales@nbasme.com
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