42CrMo Hot Rolled Steel Round Bar SAE 1045 4140 4340 8620 8640

Hot Rolled Forged Steel Bar 42CrMo SAE 1045 4140 4340 8620 8640 Alloy Steel Round Bars

Martensitic stainless steel is a kind of stainless steel that can be adjusted by heat treatment (quenching and tempering). Generally speaking, it is a kind of hardened stainless steel This feature determines the steel must have two basic conditions: one is the equilibrium phase diagram area exists, must have the austenite phase in the temperature range in the area for a long time heating, make the carbide after solid solution in steel, for quenching martensite formation, is the chemical composition must be controlled in gamma or gamma + alpha phase zone, the second is to make the alloy corrosion and oxidation resistance of passivation film formation, containing chromium The quantity must be above 10.5% according to the difference of alloy elements, can be divided into martensitic chromium stainless steel and martensitic chromium nickel stainless steel

Material certification

Forging is a very traditional industry with thousands of years of history. But at the same time forging is a very exquisite technology, need rich production experience and skilled industrial workers to produce enough quality products.Forging is also very important, not only related to the safety of equipment operation, but also directly affects the service life of equipment

DRACHMA (ZHANGJIAGANG) MATERIAL CO.LTD has two main production plants. Zhangjiagang plant is responsible for the rough forming of workpieces, mainly forging process; While Hangzhou plant is mainly responsible for precision machining, welding and inspection of products. We implement this layout mainly to use the industrial advantages of each region to achieve maximum economic benefits.

Traditional processing enterprises often do not have such ability, the lack of blank forming ability is unable to achieve the optimal use of materials, resulting in excessive processing allowance, long cycle, high cost. Zhangjiagang is located in the southern jiangsu province, which has the strongest forging capacity in China. It has a good supporting industry and can realize the diversified production of forging and pressing blanks. Thanks to this, the product cycle of our company is faster, the cost performance is higher, and the forging products have better mechanical properties than the products directly processed by rod or plate.

In addition, our company has strong welding ability, which can weld and assemble parts to achieve system delivery. We adopt the mode of automatic robot welding and manual precision welding to achieve flexibility and high quality.