Materials

Standard Materials

Parts made from these materials are usually in stock, are ready to ship, and tend to be the least expensive.

Stainless Steel 18-8 –
AISI Type 303

Offers excellent corrosion resistance.
Resists chemicals, most dyes, food and nitric acid.
Corrosion-resistant material used for screws, bushings, nuts, and hardware.
May be mildly magnetic.

Marine Grade AISI 316 Stainless Steel

Offers greater corrosion resistance than Type 303 stainless steel.
Resists salt water, acids, chlorides, alkalis and other industrial solvents.
Low-maintenance material used in commercial kitchens and food processing.
May be mildly magnetic.

Special-Performance Materials

In stock in our Tight Tolerance Smooth Head design, these materials span a range of desired properties, tending to higher strength, structural, or special applications.

AISI 416 Stainless Steel

Type 416 stainless can be hardened up to Maximum Rockwell C40 after heat treatment.
Resists acids, alkalis, fresh water and dry air.
Non-galling and hardenable material used for fittings, gears, shafts and screws.
Magnetic.

High Strength A286 Stainless Steel

Maintains superior corrosion resistance and strength at high temperatures, exceeding 17-4 PH performance.
Resists salt water, acids, chlorides, alkalis and other industrial solvents.
High-strength material used for fittings, valves, bolts and shafts.
Used in high heat/stress applications such as jet engines, gas turbines, and super-chargers.
Nonmagnetic.

Steel Carbon 12L14

12L14 steel is used in many general-purpose applications.
Material requires a finish to resist rust, such as black-oxide treatment or zinc plating.
Low-strength material used for bushings, washers, inserts, fittings, screws and nuts.
Magnetic.

Alloy Steel 4140/41L40

Thru-hardened to C24-32 per ASTM A108.
Used in high strength fasteners and components.
Common to Grade 8 designations in bolts and studs.
Requires a finish to resist rust, such as black-oxide treatment or zinc plating, but must be treated for hydrogen embrittlement.
High-strength material that exceed Grade 8 used for socket screws, studs and components, only after heat treatment.
Magnetic.

Brass

Softer material approximately two-thirds copper and one-third zinc.
Provides good resistance to rust and atmospheric corrosion.
Friction-resistant material used for gears, bearings, fasteners, and valves.
Sometimes used in anti-spark applications around flammable substances.
Yellow color desired in ornamental and decorative applications.
Nonmagnetic.

Mild Steel – Grade 2

Applies to an array of material designations, including AISI C1010; C1018: C1038 cold heading quality, or 12L14 for turned parts with cut threads.
Used in many general-purpose applications.
Requires a finish to resist rust, such as black-oxide or zinc plating.
Low-strength material used for bushings, washers, inserts, fittings, screws and nuts.
Used to manufacture our hex head product, which are often termed as “lawn mower bolts” due to their use as wheel axles.
Magnetic.

High-Performance Materials

Usually in stock and ready to ship, but overall a narrower line of inventory is maintained.

High Temperature AISI 17-4 PH Stainless Steel

Maintains excellent corrosion resistance and strength at high temperatures.
Used in automotive drive trains and heat exchangers.
Resists chemicals, most dyes, food and nitric acid.
High-strength material used for fittings, valves, bolts, and shafts.
Can be used in the petrochemical, petroleum, paper, dairy, and food processing industries, and in applications such as boat shafting.
Mildly magnetic.
Cond A

AMPG High Five® High Strength 316H5 Stainless Steel

Higher strength grade of AISI 316 marine grade stainless steel.
Resists salt water, acids, chlorides, alkalis and other industrial solvents.
Corrosion-resistance material with strength equivalent to Grade 5 steel materials.
May be mildly magnetic.
Registered trademark and patented material of Accurate Manufactured Parts Group of Indianapolis, Indiana, USA.

Light Weight Aluminum

Has the strength of mild steel with one third the weight.
Resists corrosion in wet environments.
Lightweight material used for fittings, hardware and fasteners.
Nonferromagnetic making it suitable for electrical and electronics industries.
Nonmagnetic and non-sparking.

AISI Nickel Alloy 405 Monel™ Super Duty

Also known as “nickel-copper alloy.”
Higher-strength corrosion and heat resistant material.
Excellent resistance in corrosive environments: sea water, some acids, alkalis.
Marine industry material used for propellers, heat exchangers, and valves.
May be mildly magnetic.

Titanium Grade 2 Aircraft Grade

Very strong, lightweight, and corrosion resistant.
Resists chlorides, hypochlorites, chlorates, perchlorates and chlorine dioxide.
Used for chemical-processing equipment, heat exchangers and fasteners.
Nonmagnetic.

Titanium Grade 5 High Strength Aircraft Grade

Also referred to as Titanium Gr5 (6AL-4V)
Two times stronger than Grade 2, and four times stronger than 316 stainless steel at nearly half the weight.
Resists chlorides, hypochlorites, chlorates, perchlorates and chlorine dioxide.
Lightweight material used for higher-strength fasteners, racing components and marine hardware.
Nonmagnetic.

*Material Certifications available upon request. See the list of specific material exceptions here.
**AMPG uses dual certified Type 316/316L stainless material. Meets all 316 stainless properties but has lower carbon content, making it more suitable for welding.