Quench And Temper Martensitic Stainless Steel Bearing Bush , Pallet

Martensitic Stainless Steel Castings And Forgings Bearing Bush, Pallet

1. Martensite castings and forgings treatment process and use

Martensitic stainless steel, martensitic precipitation hardening stainless steel, martensitic heat resistant steel and maraging steel are different according to the composition, heat treatment process performance and application.

(1) Martensitic stainless steel with chromium content of 13% ~ 18%, used in quenching and tempering state, used for turbine blades (with low carbon), medical and surgical tools, measuring tools, springs, etc. (with high carbon).

(2) Martensite precipitation hardening stainless steel, chromium nickel content is higher than the former, after high temperature solution, quenching, and aging treatment at 400 ~ 500℃, in the martensite matrix precipitated a large number of the second phase and the matrix of the structure of the structure of chemical pressure vessels, aircraft, etc.

(3) Martensitic heat-resistant steel contains 7.5% ~ 20.5% chromium, 0.15% ~ 0.85% carbon and a variety of alloying elements. It is tempered at 650 ~ 700℃ to form fine carbides dispersed in the matrix. It is mainly used in valves, turbine blades, nozes and bolts of automobile engines.

(4) The maraging steel, containing 18% ~ 25% nickel, 5% molybdenum, 8% cobalt and a small amount of titanium and aluminum, is aged at 480℃ after solid solution and air cooling.

Because of the high cost, it is generally used in important structural parts of aviation, aerospace and ocean technology, such as rocket engine shells, aircraft landing gear, important molds, etc.

2. Martensite castings and forgings stiffness correlation parameters

FQA

Q: Why we believe in luoyang zhongtai industries co., ltd:

A: 1. More than 30 years experience.

2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts.

3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.

Q:Delivery time :

A: Parts lead time 1-2months, machines 2-3months.

Q:Payment terms :

A: Accept payment type: T/T, L/C, Western union,Cash. 30% deposit when signed contract. Full payment paid before shipping.

Q: Quality warranty?

A: Guarantee time: one year for main machinery. If something wrong we will provide the technical advice and find solution immediately. For those wearing parts we guarantee high quality parts for long-term supply.

Q: After sales service?

A: We can supply technical guide for machines running test and parts maintenance if end user needs.

Luoyang Zhongtai Industries Co., Ltd. The company was founded in 1981 and finished joint stock reform in 2005. There are eight subsidiaries and it's an independent legal entity with the qualifications of operating import & export trade.

With a garden-like industrial park and modern standard plant covering 80,000 square meters, ZTIC possesses advanced equipments, technologies and detecting methods. After more than 30 years development, the company has developed into a collectivized one with product designing, manufacture, installation and technical services as a whole. The products comprise all the equipments used in mining, cement, metallurgy, construction as well as the related accessories with high power reducer and large-sized castings & forgings, etc.

ZTIC has acquired ISO 9001:2008 Certification of conformity of Management System Certification, Mine Product Safety Authentication, Recognition for BV Mode Ⅱ Survey Scheme in France, Mining Electrical Equipment KY Certification, etc.
The company has also acquired "Fully Quality Management Achievement Award", "Top 50 Enterprises", "Henan Outstanding Innovative Enterprise” and “The Most Powerful Enterprises of Henan" in 2010.

Quality product performance and good reputation, our products have been exported to mnay countries and regions in the world, including: Russia, Serbia, Australia, Mongolia, Indonesia, Bangladesh and other countries, the products are subject to a great welcome and praise.