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

  • 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.

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.

AMPG Material Certifications

Certifications Available Upon Request
Manufacturer Certificate of Compliance
Material Certification Detailed Pack List (included in every order)

AMPG Material Certificates