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852 Big Sewickley Creek Road
Sewickley, PA, 15143
United States

724-266-3003

Baden Steelbar & Bolt Corporation is a family-owned manufacturer and distributor of fasteners based in Pittsburgh, Pennsylvania.  We provide both stocked and custom anchor bolts, anchor bolt assemblies, threaded rod, bolts, bent bolts, nuts, washers, turnbuckles, clevises and more.  CNC maching, welding, threading.

ASTM A325

A325 was a ASTM International specification for heavy hex structural bolts.

A325 had covered high strength heavy hex structural bolts 1/2" through 1-1/2" in diameter. It was withdrawn in 2016 and became a grade of F3125. However, A325 is still commonly referred to, so it is listed here for reference. 

ASTM A325

A325 was a ASTM International specification for heavy hex structural bolts.

 

A325 had covered high strength heavy hex structural bolts 1/2" through 1-1/2" in diameter. It was withdrawn in 2016 and became a grade of F3125. However, A325 is still commonly referred to, so it is listed here for reference. 

A325 TYPES

 

A325 Type 1:

Medium carbon, carbon boron, or medium carbon alloy steel.

 

A325 Type 3:

Weathering steel.

 

A325 Type T:

Fully threaded A325 (restricted to four times the diameter in length).

 

NOTE: There are other types of A325. Those listed here are the ones we receive the most requests for. For information on other types, please contact one of our salesmen.

A325 CONNECTION TYPES

 

SC:

Slip critical connection.

 

N:

Bearing type connection with threads included in the shear plane.

 

X:

Bearing type connection with threads excluded from the shear plane.

A325 MECHANICAL PROPERTIES
Size Tensile, ksi min Yield, ksi min Elong.% min RA% min
1/2" - 1" 120 92 14 35
1-1/8" - 1-1/2" 105 81 14 35

A325 TYPE 1 CHEMICAL PROPERTIES
Element Carbon Steel Carbon Boron Steel Alloy Steel Alloy Boron Steel
Carbon 0.30% - 0.52% 0.35% - 0.52% 0.20% - 0.52% 0.30% - 0.52%
Phosphorus, max 0.040% 0.040% 0.035% 0.035%
Sulfur, max 0.050% 0.050% 0.050% 0.050%
Manganese, min 0.60% 0.60% 0.60% 0.60%
Silicon 0.15 - 0.30% 0.10 - 0.30% 0.15 - 0.35% 0.15 - 0.35%
Boron - 0.0005 - 0.003% - 0.0005 - 0.003%

NOTE

Steel, as defined by the American Iron and Steel Institute, shall be considered to be alloy when the max range given for the content of alloying elements exceeds one of more of the following limits:

Manganese 1.65%

Silicon 0.6%

Copper 0.6%

Or in which a definite range or minimum quantity of any of the following elements is specified or required within the limits of the recognized field of constructional alloy steels.

Nickel

Titanium

Tungsten

Vanadium

Zirconium

Aluminum

Chromium (up to 3.99%)

Cobalt

Columbium

Molybdenum

Or any other alloying elements added to obtain a desired alloying effect.

.

A325 RECOMMENDED HARDWARE
TypeFinish Nut Washer
Type 1 plain A563 Grade C, C3, D, DH, DH3 F436 Type 1
galvanized A563 Grade DH F436 Type 1
Type 3 plain A563 Grade C3, DH3 F436 Type 3

Note: A194 Grade 2H nuts are suitable for use with A325 heavy hex structural bolts.