AISI 8620 Fasteners

AISI 8620 Equivalent Grades

AISI 8620 Fasteners

BoltPort is a manufacturer and supplier of AISI 8620 fasteners in metric and imperial sizes. These alloy steel fasteners are used for high tensile applications in sectors of marine engineering, shipbuilding and repair, structural construction, automotives and oil & gas extraction platforms. Unlike AISI 4140 and 4340, 8620 is not quite common choice for regular bolting. However AISI 8620 is still on list of bolting material for some service critical applications. Most of consigment of 8620 alloy steel bolting are hot forged or bar machined. AISI 8620 fasteners are not available ex-stock and must be made to order with minimum lead time of 3 weeks.

AISI 8620 alloy steel is a general purpose carburizing steel. This alloy steel grade can be improvised for case/core hardening properties during heat treatment. Alloy 8620 when thermally heat treated develops a hard outer case with soft ductile core. Carefully controlled proportions of chromium, nickel and molybdenum are responsible for the extensive use as a carburizing alloy steel, with valuable features including extreme surface hardenability and good internal strength.

Find information on this alloy steel grade such as chemical composition, mechanical properties, feasible fastener products, related material specifications and applications.

AISI 8620 Fasteners

  • Inconel 600 Bolts
    Bolts
  • Inconel 600 Screws
    Screws
  • Inconel 600 Stud Bolts
    Stud Bolts
  • Inconel 600 Threaded Rods
    Threaded Rods
  • Inconel 600 Nuts
    Nuts
  • Inconel 600 Washers
    Washers
  • Inconel 600 Accessories
    Accessories
  • Inconel 600 Components
    Components

AISI 8620 Properties

Chemical Composition

Carbon Manganese Sulphur Phosphorus Silicon Molybdenum Chromium Iron
0.38 - 0.43 % 0.75 - 1.00 % 0.04 % max 0.035 % max 0.15 - 0.30 % 0.15 - 0.25 % 0.80 - 1.10 % 96.78 - 97.77%

Mechanical Properties

Tensile Strength Yield Strength Hardness, Rockwell Hardness, Brinell
655 MPa (Min.) 415 MPa (Min.) 25 - 70 197 (Min.)

Specifications for AISI 8620 Fasteners

Specification Grade Products
ASTM A29 AISI 8620/UNS G86200 Bolts, Screws, Stud Bolts, Nuts, Bar Components
ASTM A108 AISI 8620/UNS G86200 Bolts, Screws, Stud Bolts, Nuts, Bar Components
ASTM A322 AISI 8620/UNS G86200 Bolts, Screws, Stud Bolts, Nuts, Bar Components
ASTM A331 AISI 8620/UNS G86200 Bolts, Screws, Stud Bolts, Nuts, Bar Components
ASTM A506 AISI 8620/UNS G86200 Washers, Sheet Metal Components
ASTM A574 Grade 8 Socket Head Cap Screws
ASTM A829 AISI 8620/UNS G86200 Washers, Sheet Metal Components
SAE J404 AISI 8620/UNS G86200 Chemical Composition Requirements
SAE J1397 AISI 8620/UNS G86200 Chemical Composition Requirements

Coating Option For AISI 8620 Fasteners

PTFE (Teflon) Hot Dip Galvanizing Aluminum Zinc Flake
Zinc Phosphating Manganese Phosphating Metallic Zinc
Nickel Plating Chrome Plating Cadmium Plating
Silver Plating Tin Plating

Applications for AISI 8620 Fasteners

Automotives Railways Structurals
Shipbuilding & Repairs Marine & Offshore Power Industry
Chemical Processing