Polishing Forged Shaft 4340 Stainless Steel Square Rod Cold Drawn

1. 4340 Steel Introduction
AISI 4340 steel is a medium carbon, low alloy steel known for its toughness and strength in relatively large sections. AISI 4340 is also one kind of nickel chromium molybdenum steels. 4340 alloy steel is generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa. Pre hardened and tempered 4340 steels can be further surface hardened by flame or induction hardening and by nitriding. The 4340 steel has good shock and impact resistance as well as wear and abrasion resistance in the hardened condition. AISI 4340 steel properties offer good ductility in the annealed condition, allowing it to be bent or formed. Fusion and resistance welding is also possible with our 4340 alloy steel. AISI 4340 material is often utilized where other alloy steels do not have the hardenability to give the strength required. For highly stressed parts it is excellent choice. AISI 4340 alloy steel can also be machined by all customary methods.

2. 4340 Steel Equivalent

3. 4340 Steel Chemical Composition

4. 4340 Steel Available Sizes

3. Product show

Wuxi Chengjiu Metal Products Co., Ltd. 

We are founded in March 2014 and located in Wuxi, Jiangsu Province near Taihu Lake. We are a comprehensive high-tech enterprise integrating R & D, production, sales and service.

We have areas of 21000 square meters, covering more than 30 acres. and We have more than 100 employees, including 13 senior technical managers and 3 senior engineers. We also have many advanced equipment, including: one broaching machine with an outer diameter of 1080, seven broaching machines of various models, 10 rolling mills, one gas generator and annealing furnace, one large-scale automatic solid solution annealing furnace, testing equipment, spectral instruments, wall thickness testing, CS analytical instruments, ultrasonic flaw detection, eddy current flaw detection, water pressure testing, crystal testing, etc.

We attach importance to technological innovation and brand building, and have three patents. Our products have passed ISO9001 and gb/t24001-2016idt iso14001:2015 standards. We have special equipment type test certificate and its number is tsx7100270200299.

Our main products: stainless steel hot rolled plate, stainless steel cold rolled plate, stainless steel cold rolled coil, stainless steel hot rolled coil, stainless steel pipe, stainless steel pipe fittings, stainless steel bar, stainless steel flat steel, stainless steel angle steel, stainless steel channel steel, stainless steel forgings.

Our main materials(stainless steel materials):

201 202 301 303 304 304L 321 316L 316Ti 317L 347H 309S 310S 2205 2507 17-4PH 15-5PH 410 420 430 ,etc.

Our products are widely used in petroleum, chemical industry, chemical fiber, medical equipment, smelting, aerospace, papermaking, food, shipbuilding, environmental protection, boilers, heat exchangers, pressure vessels, condensers, water conservancy, electricity and other industries.