Haynes 188 Bars and Rods

Luois Metals is a leading distributor of Haynes 188 rods and bars, offering high-performance cobalt alloys for extreme temperature use throughout Houston and the USA. Haynes 188 provides exceptional oxidation resistance, thermal stability, and strength, which makes it a perfect application within aerospace, gas turbine engines, and heat-intensive industry environments. Our Haynes 188 rods and bars are produced to AMS and ASTM specifications and in a broad variety of sizes. With fast turnaround, technical assistance, and precision machining capabilities, Luois Metals is the go-to supplier of high-temperature alloy solutions.

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Haynes 188 Round Bars

Haynes Alloy 188 Square Bars

Haynes 188 Hex Bars

What is Haynes 188 Bars and Rods?

Haynes 188 is a cobalt-nickel-chromium-tungsten alloy with the following typical composition: 39 cobalt, 22 nickel, 22 chromium, 14 tungsten, with trace lanthanum. It has good oxidation resistance up to 2000°F (1093°C), high strength at high temperatures, and good formability. Tensile strength is approximately 1000 MPa, yield strength approximately 450 MPa, and elongation approximately 40%. Brinell hardness is 180–210 HB. Haynes 188 conforms to specifications like AMS 5608 and ASTM B818, making it ideal for thermal–stress and oxidation service components.

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Haynes 188 Bars and Rods Specification

Standards :	ASTM 5772, ASME S5772
Dimensions :	EN, DIN, JIS, ASTM, BS, ASME, AISI
Wire :	Thickness starting from 0.05mm
Round bar size :	Diameter: 3-~800mm
Hex Bar size :	2-100mm A/F
Flat bar size :	Thickness: 2 -100mm / Width: 10 to 500mm
Square bar size :	4 to 100mm
Rectangular Bars Size :	33 x 30mm to 295 x 1066mm
Hollow Bar :	32mm OD x 16mm ID to 250mm OD x 200mm ID
Tolerance :	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Finish :	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Chemical Compositions of Haynes 188 Bars and Rods

Grade	C	Mn	P	S	Si	Ni	Cr	Fe	W	B	La
Haynes 188	.05 – .15	1.25 max	.020 max	.015 max	.20 – .50	20.0 – 24.0	21.0 -23.0	3.0 max	13.0 -15.0	.015 max	.03 – .15

Haynes 188 Bars and Rods Mechanical Properties

Tensile Strength	Yield Strength (0.2%Offset)	Elongation
ksi – 65 , MPa – 446	ksi – 140 , MPa – 963	55 %

Haynes 188 Bars and Rods Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS
Haynes 188	2.4683	R30188

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Haynes 188 Bars and Rods Types

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Frequently Asked Questions (FAQ)

How Do Haynes 188 Bars and Rods Perform in High-Temperature Environments?

Haynes 188 bars and rods exhibit excellent high-temperature strength and oxidation resistance, maintaining structural integrity up to 2000°F (1093°C), making them ideal for aerospace, turbine, and high-performance engine applications.

How Do I Maintain Haynes 188 Bars?

To maintain Haynes 188 bars, regularly inspect for corrosion or wear, avoid excessive temperature fluctuations, clean with non-abrasive methods, and store in a dry, cool environment to prevent degradation.

Can Haynes 188 Rods be Customized in Size and Length?

Yes, Haynes 188 rods can be customized in size and length according to specific requirements. Manufacturers can provide tailored solutions based on customer specifications for industrial applications.

Haynes 188 Bars and Rods Uses

Haynes 188 bars and rods are in extensive use in the aerospace sector in the production of combustor cans, afterburners, transition liners, and other hot-section gas turbine parts. Their high oxidation and thermal fatigue resistance ensures that they can be used for extended periods in harsh temperature conditions. In industrial use, Haynes 188 is applied in heat exchangers, high-temperature ducting, and chemical reactors. It is also utilized in power generation and propulsion systems in land-based gas turbines. Its suitability from the combination of high strength, corrosion resistance, and thermal stability leads to durability and reliability of mission-critical operations.

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