40HNMA, 40NiCrMo7, AISI 4340 - Destination and specification. Structural alloy steel with very good strength properties and particularly high hardening properties, used for thermal improvement on highly stressed machine parts exposed to impact, twisting and vibration, where suitable impact strength is AISI 4340 Steel, oil quenched 855°C (1570°F), 230°C (450°F alloy steels, UNS G43400, AMS 5331, AMS 6359, AMS 6414, AMS 6415, ASTM A322, ASTM A331, ASTM A505, ASTM A519, ASTM A547, ASTM A646, MIL SPEC MIL-S-16974, SAE J404, SAE J412, SAE J770, DIN 1.6565, JIS SNCM 8, IS 1570 40Ni2Cr1Mo28, IS 1570 Carbon Steel; Medium Carbon Steel. Material Notes:AISI 4340 has a favorable response to heat treatment
AISI 4340 Steel, oil quenched 855°C (1570°F), 230°C (450°F) temper for 4 hrs., tested at 26°C. Subcategory:AISI 4000 Series Steel; Ferrous Metal; Low Alloy Steel; Medium Carbon Steel; Metal Key Words:alloy steels, UNS G43400, AMS 5331, AMS 6359, AMS 6414, AMS 6415, ASTM A322, ASTM A331, ASTM A505, ASTM A519, ASTM A547, ASTM A646, MIL SPEC MIL-S-16974, B.S. 817 M 40 Alloy Steel 4340 Forging Metal Ministry Inc.4340 Alloy Steel has high quality, predominant strength and great flexibility. AISI 4340 steel properties offer good ductility in the annealed condition and thus finds the applications in diverse sectors such as aircraft, automotive systems, forged hydraulic and other Alloy Steel Grade 4340 (UNS G43400) Compare, Review Grade 4340 (UNS G43400) is available in the following forms - Bar Beam Castings Coil Cylinder Disc Drill Rod Extrusions Flats (Flat Bar) Foil Forging Pipe Plate Ring Rod Rounds Sheet
4340 alloy steel (also known as AISI 4340) is a low alloy steel with high toughness in an annealed state. 4340 alloy steel is characterized by its outstanding ductility, formability, and weldability rendering it an excellent metal for a variety of structural applications and components including power transmission gears and shafts, aircraft parts, and machinery. 4340 steel is mainly iron based SAE-AISI 4340 Steel vs. S17400 Stainless Steel For each property being compared, the top bar is SAE-AISI 4340 steel and the bottom bar is S17400 stainless steel. SAE-AISI 4340 (SNCM439, G43400) Ni-Cr-Mo Steel UNS S17400 (17-4 PH, Alloy 630) Stainless Steel UNS G43400 - Equivalent MaterialsThere are 6 equivalent materials for UNS G43400 Alloy Steel. See the equivalents for DIN, BS, AISI, SAE and EN.
Additionally, 4340 can be cold worked easily in the annealed state. This material is typically used in military aircraft, automotive systems, hydraulic parts, machine tools, and a steel crankshafts. Common Trade Names. UNS G43400, AISI 4340, Alloy Steel . Other Resources. Weight Calculator Mill Test Reports . Products. 4340 Round Bar | eFunda:Properties of Alloy Steel AISI 4340Category :Steel:Class :Alloy steel:Type :Standard:Common Names :Nickel-chromium-molybdenum steel:Designations :Germany:DIN 1.6565 Japan:JIS SNCM 8 United AISI 4340/SAE 4340/UNS G43400 - Structural steel for DIN AISI 4340/SAE 4340/UNS G43400. This is alloy and high strength steel of structural steel in the United States, we can produce plate, flat, belt, sheet, wire coil, square bar, round rod, pipe,forged valve body,forged rings, forged multidiameter shafts etc for this steel. Because alloy structural steel is the permeability steel, after appropriate metal heat treatment, the microstructure is homogeneous sorbite,