Alloy Steel
Alloy steel is steel combined with a variety of other metals or minerals such as chromium, cobalt, copper, manganese, molybdenum, nickel, tungsten or vanadium to obtain desirable physical and chemical properties such as higher strength and durability. Alloy steel is also more resistant to corrosion.
Grades
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300M
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C300
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4130
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4140/4142
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41L40
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4150
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4340
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A514
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5160
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E52100
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8620
300M Very High-Strength Alloy Steel
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Modified 4340 Steel for high yield strength
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Applications include torsion bars and drive shafts
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Normalized for consistent hardening and machining
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Hardness: Rockwell C23
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Can be heat treated to Rockwell C54
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Meets ASTM A579
41L40 Easy-To-Machine
Alloy Steel
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Lead added for fast machining
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Cold drawn
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Smooth finish
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Medium hardness (Rockwell B96)
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Can be heat treated to Rockwell C34
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Meets ASTM A108
C300 Ultra Impact-Resistant Alloy Steel
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Also known as Maraging Steel and VascoMax
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Excellent impact and compression resistance
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Used for die and tooling applications
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Hardness: Rockwell C30
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Can be heat treated to Rockwell C55
4150 Wear-Resistant
Alloy Steel
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Includes more carbon than 4140/4142 Alloy Steel making it more wear resistant
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Applications include gears, shafts & ball screws
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Medium hardness (Rockwell B90)
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Can be heat treated to Rockwell C63
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Meets ASTM A29, A108
4130 Easy-To-Weld
Alloy Steel
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Low carbon for good weldability
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Abrasion and impact resistant
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Applications include gears, fasteners & structural applications
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Medium hardness (Rockwell B85)
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Can be heat treated to Rockwell C55
4340 High-Strength Impact-Resistant Alloy Steel
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Use for applications involving extreme impact, heat and wear
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Hardness: Rockwell C27
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Can be heat treated to Rockwell C53
4140/4142 Multipurpose Alloy Steel
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Also known as Chrom-Moly Steel
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Applications include gears, axles, shafts, collets and dieholders
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Fracture resistant
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Abrasion and impact resistant when hardened
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Available annealed (Rockwell B90) or heat treated (Rockwell C 28/32)
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Can be heat treated to Rockwell C60
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Meets ASTM A29, A108
Shapes
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Round
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Flat
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Square
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Hex
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Sheet
A514 High-Strength
Alloy Steel Sheets
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Also known as High-Strength Low-Alloy (HSLA) Steel
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High yield strength
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Suitable for structural applications
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Supports heavy loads
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Heat treated for enhanced strength and harness
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Meets ASTM A514
5160 Stress-Resistant
Alloy Steel
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Extremely stress-resistant
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Applications include flat springs
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Hardness: Rockwell C24
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Can be heat treated to Rockwell C63
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Meets ASTM A689
E52100 Bearing Quality Alloy Steel
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Also known as Chrome Steel
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Extremely hard and wear resistant
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Applications include bearings, bushings and punches
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Meets ASTM A108, A295
8620 Easy-To-Weld
Wear-Resistant Alloy Steel
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Low carbon for good weldability
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Contains nickel, chromium and molybdenum for abrasion resistance
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Hardness: Rockwell B85
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Can be heat treated to Rockwell C60
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Meets ASTM A29, A108
