Overview

HASTELLOY C-2000® alloy (UNS N06200) is a nickel-chromium-molybdenum materials with exceptional resistance to sulfuric acid. It has deliberate copper addition so it greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

Like other nickel alloys, it is ductile, easy to form and weld, and possesses exceptional resistance to stress corrosion cracking in chloride-bearing solutions (a form of degradationto which the austenitic stainless steels are prone). It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.

Limiting Chemical Composition, %

Nickel.........................................................................................................................................................................................Balance 

Molybdenum......................................................................................................................................................................15.00--17.00 

Ferrum......................................................................................................................................................................................3.00 max.

Chromium...........................................................................................................................................................................22.00--24.00

Carbon.....................................................................................................................................................................................0.01 max.

Manganum..............................................................................................................................................................................0.50 max.

Phosphorus ..........................................................................................................................................................................0.025 max.

Aluminum.................................................................................................................................................................................0.50 max.

Cobalt.......................................................................................................................................................................................2.00 max.

Silicon.......................................................................................................................................................................................0.08 max.

Sulfur.........................................................................................................................................................................................0.01 max.

Copper.......................................................................................................................................................................................1.30-1.90

Physical Constants

Below are some physical constants and thermal properties of

Mechanical properties

Tensile-properties

Average Tensile Data

Corrosion Resistance

The nickel-chromium-molybdenum (Ni-Cr-Mo) C-type alloys have a long history of use in the Chemical Process Industries and are known for their versatility. Not only do they resist all acids (especially hydrochloric, sulfuric, and hydrofluoric) over large temperature ranges, but they also resist the insidious types of attack induced by chlorides and other halide solutions, specifically pitting, crevice attack, and stress corrosion cracking. The technical objective during the design of HASTELLOY® C-2000® alloy* was even greater versatility, as compared with the traditional Ni-Cr-Mo alloys. This was accomplished by use of a high chromium content (23 wt.%), a high molybdenum content (16 wt.%), and a small but effective addition of copper (1.6 wt.%). The copper was found to provide enhanced temperature capability in sulfuric acid, hydrofluoric acid, and dilute hydrochloric acid.

Heat Treatment

Solution annealing: 1,120 – 1,149 °C, duration depending on thickness of semi-finished product Cooling: water, compressed air or protective gas

Available Forms

We provide you with a variety of product forms, including but not limited to

● Bar & Rod

● Pipe & Tube

● Coil & Strip

● Plate & Sheet & Circle

● Wire & Welding

● Fitting (Flange, Elbow, Tee...)

● Customize