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ASTM A449 Specification

astm-a449-boltsASTM A449 Covers Specification for medium alloy carbon Alloy Steel Hex Bolts,anchor bolts,threaded rods etc. intended for general Engineering Apllication.TorqBolt Manufactures , Stocks & Supply these Bolt Fasteners in various sizes & Coatings.

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Related Keywords for ASTM A449 Specification : Astm A449 Specification,A449 bolts,A449 threaded rod,A449 anchor bolts,astm A449 Bolts etc.

Grades

Type 1 Medium carbon, carbon boron, or medium carbon alloy steel.
Type 3 Weathering steel.

 

Mechanical Properties

Size Tensile, ksi Yield, ksi Elong. %, min RA %, min
1/4 - 1 120 min 92 min 14 35
1-1/8 - 1-1/2 105 min 81 min 14 35
1-5/8 - 3 90 min 58 min 14 35

 

Material Chemical Composition

Type 1 Bolts
Element Carbon Steel Carbon Boron Steel Alloy Steel Alloy Boron Steel
Carbon 0.30 - 0.52% 0.30 - 0.52% 0.30 - 0.52% 0.30 - 0.52%
Manganese, min 0.60% 0.60% 0.60% 0.60%
Phosphorus, max 0.040% 0.040% 0.035% 0.035%
Sulfur, max 0.050% 0.050% 0.040% 0.040%
Silicon 0.15-0.30% 0.15-0.30% 0.15-0.35% 0.15-0.35%
Boron   0.0005 - 0.003%   0.0005 - 0.003%

 

Material Chemical Composition

Type 3 Bolts, Class *
ELEMENT A B C D E F
Carbon 0.33 - 0.40% 0.38 - 0.48% 0.15 - 0.25% 0.15 - 0.25% 0.20 - 0.25% 0.20 - 0.25%
Manganese 0.90 - 1.20% 0.70 - 0.90% 0.80 - 1.35% 0.40 - 1.20% 0.60 - 1.00% 0.90 - 1.20%
Phosphorus, max 0.035% max 0.06 - 0.12% 0.035% max 0.035% max 0.035% max 0.035% max
Sulfur, max 0.040% 0.040% 0.040% 0.040% 0.040% 0.040%
Silicon 0.15 - 0.35% 0.30 - 0.50% 0.15 - 0.35% 0.25 - 0.50% 0.15 - 0.35% 0.15 - 0.35%
Copper 0.25 - 0.45% 0.20 - 0.4% 0.20 - 0.5% 0.30 - 0.50% 0.30 - 0.60% 0.20 - 0.40%
Nickel 0.25 - 0.45% 0.50 - 0.80% 0.25 - 0.50% 0.50 - 0.80% 0.30 - 0.60% 0.20 - 0.40%
Chromium 0.45 - 0.65% 0.50 - 0.75% 0.30 - 0.50% 0.50 - 1.00% 0.60 - 0.90% 0.45 - 0.65%
Vanadium   0.020% min      
Molybdenum   0.06% max   0.10% max    
Titanium     0.05% max    

 

Recommended Nuts & Washer

Nuts Washers
Plain Galvanized F436
1/4 - 1-1/2 1-5/8 - 3 1/4 - 3
A563B Hex A563A heavy hex A563DH heavy hex

 

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