DP2781 Alloy 188 Powder (UNS R30188)

Catalog No. DP2781
Appearance Gray metallic powder
Grade GH5188, H188

Alloy 188 (UNS R30188) Powder is on sale at Stanford Advanced Materials (SAM). Equipped with rich experience and knowledge in the metals industry, SAM is a global manufacturer of high-quality Alloy 188 Powder.

Related Products: Hastelloy X Powder, Inconel 625 Powder, Inconel 718 Powder, Waspaloy Powder

 

Alloy 188 Powder Description

Alloy 188 (UNS R30188) is a cobalt-based superalloy with a unique combination of high-temperature strength and oxidation resistance up to 1093°C, along with good post-aging. The alloy maintains its ductility after prolonged exposure to high temperatures. Alloy 188 is also particularly resistant to sulfate-deposit hot corrosion. Alloy 188 is readily fabricated, being welded by both manual and automatic methods including electron beam, gas tungsten arc, and resistance welding.

Stanford Advanced Materials is a worldwide supplier of high-quality Alloy 188 Powder who has over two decades of experience in the manufacture and sale of Alloy 188 Powder.

 

Alloy 188 Powder Specifications

Product Name

Alloy 188 (UNS R30188) Powder

Alloy Grade

GH5188, H188

Related Grades

/

Composition

Cr 20.0-24.0
Ni 20.0-24.0
Co Bal
W 13.0-16.0
La 0.02-0.12
B 0.015 max

C 0.05-0.015
Fe 3.0 max
Mn 1.25 max
Si 0.2-0.5
P 0.02 max
S 0.015 max

Size Grades

-105+45micron

-53+15micron

ASTM

/

AMS Specification

5608, 5801, 5772

 

Alloy 188 Powder Applications

Alloy 188 Powder has good forming and welding characteristics. It may be forged or other hot-worked, providing that it is held at 2150°F (1175°C) for a time sufficient to bring the entire piece to temperature. As a consequence of its good ductility, alloy 188 is also readily formed by cold working. The alloy does work-harden rapidly, however, so frequent intermediate annealing treatments may be needed for complex component forming operations. All hot- or cold- worked parts should be annealed and rapidly cooled in order to restore the best balance of properties.

Wrought alloy 188 is furnished in the solution heat treated condition, unless otherwise specified. The alloy is normally solution heat-treated at 2125-2175°F (1163-1191°C) and rapidly cooled or water quenched for optimal properties. Annealing at temperatures less than the solution heat-treating temperature will produce some carbide precipitation in alloy 188, which may affect the alloy’s properties.

Alloy 188 Powder combines properties that make it suitable for a variety of fabricated component applications in the aerospace industry. It is widely used in established military and commercial gas turbine engines for combustion cans, transitions ducts, and afterburner components.

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