• Specification：80*5mm--430*20mm
• Transport Package：Bundle and Bare or According to Customer Inquire
• Length：6m-12m
• Dimensions：25*25-250*250mm
• Delivery：Average 30 Days
• High Quality：Low Price
• Model NO.：12#
• Trademark：Wghongxing
• Origin：China
• Production Capacity：5000tons,Month

4340 Steel Equivalent gradesGBDINAISIJIS 40CrNiMoA1.6582 4340SNCM8 Chemical CompositionCSiMnCr MoNiPS 0.38-0.430.15-0.350.60-0.800.70-0.90.20-0.301.65-2.000.03max0.03max Available sizeRound BarDiameterLength70-600mm2000-6000mmFlat BarThicknessWidthLength25-400mm200-800mm2000-6000mmSurface conditionBlack surface/ Grinded/ MachinedAnnealed hardnessHBS≤248Characteristicsspecial alloy steel, supplied in quenched and tempered conditions. High strength and tenacity, good hardenability.Applicationsheavily loaded parts for mechanical engineering and motor construction. Heat TreatmentForgingHeat to 1150ºC Hold till uniform.Minimum forging temperature 850ºC.Cool slowly in ashes or sand etc.AnnealingHeat to 830ºC-850ºC.Cool infurnace.Stress RelievingAnnealed: Heat to 600ºC-650ºC.Hardened: Heat to 500ºC-550ºC.Cool in still air.HardeningHeat to 830ºC-880ºC.Quench in oil or polymer.TemperingHeat to 450ºC-660ºC cool in still air NB. Tempering within the range 250ºC-450ºC will result in temper brittleness and should be avoided.Company Profiled

Wugang Hongxing Metal Material Co., Ltd. Is located in Wuyang City and is specialized in manufacturing Steel Plates. With an experienced and professional team, we have exported our products to many countries and regions all over the world, especially Southeast Asia, the Middle East and Eastern Europe. Our products enjoy a good reputation among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.

ITEM	DESCRIPTION
Payment Items	L/C at sight or T/T.
Deliver Conditions	average 30 days
Supply Ability	10,00MT per month
Certificate	ISO9001
1. We can supply you with reasonable and competitive price and good quality products.	2. If you are interested in any of products,please contact us for more information.

Wugang Chang Yu Long Industry and Trade Co., Ltd. was established in 2002,the Guangzhou LongShengHing Trading Co.,Ltd and Hongkong Chang Yu Long Trade Co.,Limited was establish in 2008.(The founder Mr.yan, the charge of the production department of the Hesteel Group Co.,Ltd.Hesteel is the world's second largest and China largest iron&steel maker and integrated service provider measured by the production capacity.he has been in steel industry for more than thirty years).

The Wugang Chang Yu Long Industry and Trade Co., Ltd. develop high-end product at first,like military steel and heavy plate,and gradually develop a more wide range of product.now the product contain steel plate,hot rolled steel coils,colded rolled steel coil,PPGI,galvanized steel coil,round bar,steel rebar,wire rod,etc.

Our product reach the specification of ASTM,JIS,BS,DIN and othe international standard and our shipbuilding plate get certificate of nine country classification society.

If you have any needs of steel products, can contact me, welcome to inquiry.