Hastelloy G-30 (UNS N06030) Supplier | Bar, Tube, Plate - Hangbo Alloy

Hangbo Alloy Group offers a diverse range of materials, including round bars, steel plates, strips, seamless pipes, forged products, and wire. Below is a detailed overview of HASTELLOY G-30:

Detailed Introduction to Hastelloy G-30

Hastelloy G-30 is a nickel-chromium-molybdenum alloy designed for exceptional resistance to pitting and stress corrosion cracking in a variety of corrosive environments. It is particularly effective in handling strong oxidizing media, including nitric acid and various chlorides, making it ideal for chemical processing applications.
This alloy's unique composition allows it to withstand harsh conditions, including high temperatures and the presence of chloride ions, providing enhanced durability compared to many other alloys. Hastelloy G-30 is often used in environments where other materials may fail, due to its superior resistance to both localized and general corrosion.
Equivalent Grades by Country:
• ASTM: UNS N06030
• DIN: NiCrMo-30 W.Nr.2.4603

Overview

Hastelloy G-30 (UNS N06030) is a nickel-chromium-iron-molybdenum alloy with tungsten and copper additions, developed for outstanding resistance to commercial phosphoric acid, nitric acid and sulfuric acid service. The high chromium content (28.0–31.5%) provides excellent resistance to oxidizing media, while molybdenum and tungsten contribute resistance in reducing conditions, giving G-30 one of the best overall corrosion profiles of the nickel-chromium alloy family. It is particularly valued in wet-process phosphoric acid production, where it outperforms stainless steels and many nickel alloys in both general and localized corrosion. Hangbo supplies G-30 as round bar (ASTM B581), plate, sheet and strip (ASTM B582), seamless pipe and tube (ASTM B622), and forgings and fittings (ASTM B462), each heat supplied with full mill test certification and EN 10204 3.1 documentation.

Chemical Composition (ASTM B581/B582)

Chemical composition (wt%) of Hastelloy G-30 (UNS N06030) per ASTM B581 (round bar) and ASTM B582 (plate, sheet, strip):

Mechanical Properties (ASTM B581/B582)

Room-temperature mechanical properties (minimum values) of solution-annealed Hastelloy G-30 (UNS N06030):

Applications

Hastelloy G-30 is the material of choice for evaporator tubes, heat exchanger bundles, agitators, pumps and valves in wet-process phosphoric acid plants and fertilizer production. It is also used in nitric acid and mixed-acid pickling operations, sulfuric acid coolers, and flue gas desulfurization (FGD) systems. Chemical processing equipment such as reactors, columns, piping and storage tanks for aggressive oxidizing chloride environments benefit from its resistance to pitting, crevice corrosion and stress-corrosion cracking. Additional applications include dye and pigment production, nuclear fuel reprocessing equipment, and pharmaceutical industry components requiring resistance to hot acids and halides.

International Standards for Hastelloy G-30 Products

The following table outlines the applicable standards for Hastelloy G-30 in various forms:

Product Form ASTM Standard