With the exploration and innovation of company people, gradually formed four major advantageous products: steel plate, steel pipe, stainless steel, special steel.
Forging of 4340 Alloy Steel Preheat the steel 4340 first, heat up to 1150C 1200C maximum for forging, hold until temperature is uniform throughout the section. Do not forge below 850 C. 4340 has good forging characteristics but care must be taken when cooling as the steel shows susceptibility to cracking.
Steel of the alloy 4340 can be heat treated (heated to a set temperature for the particular material and then quenched) using an oil quench to increase the alloy's strength. 4340 can also be annealed (heated to a set point and then allowed to cool, which realigns the internal molecular structure to make the metal stronger) which imbues this steel with excellent durability.
Hardening. A temperature range of 1500 1550 F (815 845 C) is the normal austenitizing temperature for direct hardening of 4340 grade. Oil quenching is normally used for 4340 as the alloys hardenability is suited to this quenching method.
SAE-AISI 4340 (SNCM439, G43400) Ni-Cr-Mo Steel SAE-AISI 4340 steel is an alloy steel formulated for primary forming into wrought products. 4340 is the designation in both the SAE and AISI systems for this material.
AISI 4340 is defined as a heat treatable and low alloy steel which has 0.8% Cr, 0.2% Mo and 1.8% Ni as strengthening alloy elements.Compared with AISI 4140,it has higher strength and toughness,also it has very good fatigue resistance, wear resistance and atmospheric corrosion resistance.AISI 4340 is generally supplied in hardened and tempered condition with the tensile range of 930 - 1080 Mpa forged lower price alloy steel 4340 steel hardness
4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel - generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa (condition U) - (Rc 28 - 36).. Characterised by high strength and toughness in relatively large sections.
Through-Hardening Low Alloy Steel Bar 4340 Colour code: Jade (Band) - Marigold Introduction Atlas 4340 is a nominally 1.8 percent Nickel Chromium Molybdenum low alloy steel of high hardenability, with high strength and toughness in relatively large sections achieved with a "quench-and-temper" heat treatment.
Stainless Steel, Special Steel, Compressor Blading, Turbine Blading, Superalloy Supplier. SAE 4340 can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
AISI 4340 alloy steel is heat treated at 830C (1525F) followed by quenching in oil. Forging. AISI 4340 alloy steel is forged at 427 to 1233C (1800 to 2250F). Cold Working. AISI 4340 alloy steel can be cold worked using all conventional methods in the annealed condition. It has high ductility. Annealing
Forged Connecting Steel Rod 4340 , Find Complete Details about Forged Connecting Steel Rod 4340,Steel Rod 4340,Forged Rod 4340,Forged 4340 from Steel Round Bars Supplier or Manufacturer-Sichuan Liaofu Special Steel Trading Co., Ltd.
6.Forged of AISI 4340 Oil and Gas industry Steel material metal. Forged AISI 4340 steel at 1150-1200 C. no forging when below 850 C.
Forged Alloy Round Steel Bar En24 En19 4340 42CrMo4 4150. China Forged Alloy Round Steel Bar En24 En19 4340 42CrMo4 4150, Find details about China Forged Shafts, Roller Shaft from Forged Alloy Round Steel Bar En24 En19 4340 42CrMo4 4150 - Shandong Dajin Metal Material Co., Ltd.
Forging Parts, Forging Shaft, Forging Bars manufacturer / supplier in China, offering SAE4130 4140 4150 4340 Forging Alloy Steel Bar/Forging Shaft, 1215 Free-Cutting Steel for Machining Gears, 1215 Round Steel for Easily Machined Valves and so on.
Evaluation of Toughness in AISI 4340 Alloy Steel Austenitized at Low and High Temperatures ROBERT O. RITCHIE, BENJAMIN FRANCIS, AND WILLIAM L. SERVER It has been reported for as-quenched AISI 4340 steel that high temperature austenitizing treatments at 1200~ instead of conventional heat-treatment at 870~ result in a two- forged lower price alloy steel 4340 steel hardness
Alloy 4340 AMS 6414 is a heat treatable, low alloy steel containing nickel, chromium The carbon content is nominally 0.30% and with this relatively low carbon content the Its chromium content provides good hardness penetration, and the
AISI 4340 is stocked in the heat treated and stress-relieved condition at approximately 150,000 psi (1034 N/mm2) and in the annealed condition at HB 235 max. Typical Applications High strength machine parts, heavy-duty shafting, high tensile bolts and studs, gears, axle shafts, crankshafts, boring bars and down-hole drilling components
Leoscor Alloys is a known stockist and manufacturer of AISI 4340 Round Bars, which has good shock and impact resistance as well as wear and abrasion resistance in the hardened condition. Alloy Steel DIN 1.6565 Round Bars is a nickel-chromium-molybdenum alloy steel known for its toughness and its ability to attain high strengths in the heat-treated condition.
4340, Flat Steel Bars, Alloy Steel manufacturer / supplier in China, offering  Steel Plate, Square Forged Bar, Forged Alloy Steel Round Bars 4140 Black Surface, Forged Round Bar, Tool Steel in Low Price Grade 1.2714+Q/T and so on.
AISI 4340 Alloy Steel AISI 4340 steel stockholders and suppliers, delivering to the whole of the UK. AISI 4340 is a nickel chromium molybdenum alloy steel specification widely used in the oil and gas sectors. 4340 steel offers toughness and high strength in the heat treated condition, with good fatigue strength. Available in round bar
4340 grade steel is a through hardening steel which in the quenched and tempering condition is capable of high strengths. Its hardenability is excellent, allowing large section sizes to be heat treated with maintained through hardness. While 4340 is normally oil quenched, due to the high hardenability, small sections may be air hardened.
4340 Annealed HOT ROLLED & COLD FINISHED. PACIFIC 4340 is available in two conditions: heat treated (quenched and tempered) to high strength or annealed for ease of machining and subsequent heat treatment. It is a nickel-chromium-molybdenum medium carbon alloy steel with deep hardenability. It can be through hardened in large sections.
AISI/SAE 4130 Forged Alloy Steel Round Bar(id:10827573). forged lower price alloy steel 4340 steel hardness (1230 and 950 C.) The lower the finishing temperature from forging, the finer will be the grain size. If the alloy is forged at too low a temperature, there is a risk of the formation of a non-uniform structure in certain areas of the forged part, necessitating a normalizing forged lower price alloy steel 4340 steel hardness
Capital Steel & Wire is a leading supplier of cold drawn 4340 square bar stock. We are a mill quality producer and distributor of steel bar and wire products. 4340 steel is known as an ultra high strength grade of steel alloy that has excellent toughness, strength and ductility characteristics when compared to other lower carbon steels.
Jiangsu Zhuhong Forging Co., Ltd. 4340 SAE4340 AISI4340, Flat Steel Bars, Alloy Steel manufacturer / supplier in China, offering [4340, SAE4340 AISI4340] Steel Forged Round Shafts in Good Price Alloy Steel Bar, DIN 1.2344 ESR+Efs Forged Die Steel, 42CrMo +Q/T+Turned Steel Rollers, Bright Surface, and so on.
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