One of the Most Stable & Creep Resistant Alloys at High Temperature

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  Ideal material for the lowest creep resistance at high temperature
• Extremely oxidation & nitriding resistant
• Great mechanical strength at elevated temperatures
• Stabile up to 2100°F (1149°C)
• Alloy 230 chemistry & specifications
• Rupture strength and mechanical strength charts
• Alloy 230 datasheet
• Availability and lead times
• Haynes® 230 fastener styles

Haynes® 230 fasteners such as bolts, screws, nuts and threaded rods are ideally suited for high temperature environments where creep strength and oxidation resistance are the primary concern. This material really stands out when your operating at temperature is above 1200°F (650°C). Alloy 230 bolts are even capable of surviving at temperatures up to 2100°F (1150°C). These unique capabilities are due to its chemical make up as a nickel-chromium-tungsten-molybdenum alloy.

When comparing the stress-rupture strength of alloy 230 to other high temperature materials, like Inconel 625, Hastelloy X, Incoloy 800H or RA330, Alloy 230 bolts exceed them all when operating at temperatures above 1600F. Click here for a material comparison of Alloy 230's high temperature, stress-rupture strength.

Furthermore, alloy 230 screws can maintain their ductility after long exposures to high temperatures. This demonstrates that this material retains it elongation and does not become brittle, which is a common mode of failure for other alloys when exposed to the effects of high temperature oxidation. Click here to learn more about ductility retention after long term exposure to high temperature.

Resources: Torque Specifications

Haynes 230 Fastener Availability

Availability
Alloy 230 fasteners are available in a large variety of screw styles, as well as other fastener products. Extreme Bolt & Fastener has a minimum line quantity of appoximately 15 pieces for most fasteners. The standard lead time is around 5-6 weeks, depending on the complexity of the request. 

• Diameter sizes:  Standard #4 – 4” in diameter / Metric M4 – M48
• Threads: UNC, UNF, UNJ, UNR in both Rolled, and Cut thread
• Custom per print fasteners available.
• ASTM, ASME, DFAR and Domestic available

Expediting Options
Many critical applications require expedited lead times. Though not all orders can be expedited due to material supply and other parameters, please let us know your requirements when requesting a quote so that we can do our best to accomodate you.

Alloy 230 Fastener Styles

Alloy 230 Chemistry & Specifications

Specifications: UNS N06230, AMS 5891, SB 572/B 572 B, AMS5878, SB 435/B

Alloy 230 Screws  

12 Point Screws	Alloy 230 12-point screws are ideally used when higher torque is required than a socket head screw can offer. The only drawback is they are less economical and require higher minimum quantities due to the complexity of design. Alloy 230 12 point screws are available in 1/4" or larger sizes.	•  IFI-115 •  MIL SPEC •  DIN 34822 •  DIN 34821
Button Head Cap Screws	Alloy 230 button head screws are typically used to provide a wide clamping area. In addition, they are used when a low profile fastener is needed. Button head cap screws in Alloy 230 are often used for fastening a material that is too thin to counter bore.	• ASME B18.3 • ASME 18.3.4M • DIN 7380 / ISO 7380
Flat Head Screws	Typically Alloy 230 flat head screws have an 82° countersink angle. Custom angles from 60° to 120° are also available upon request. Alloy 230 flat heads are designed to be flush with the surface and can be made with a slotted and socket drivers. Phillips, torx and tamperproof drivers are also available.	•  ASME B18.3 •  ASME B18.3.6 •  DIN 963 / ISO 2009 •  DIN 965 / ISO 7046 •  DIN 7991 / ISO 10642
Hex Head Cap Screws	Alloy 230 hex head cap screws are a commonly used style and feature an added washer face that isn't part of a hex head bolt. This washer face provides tighter dimensional tolerances. Alloy 230 hex head cap screws provide high clamping force and easy access.	• ASME B18.6.3 • DIN 931 / ISO 4014 • DIN 933 / ISO 4017 • DIN 961 / ISO 8676
Pan Head Screws	Alloy 230 pan head screws feature a rounded head style and are most commonly available with a slotted driver. They are best for small diameter fasteners and low torque applications.	• ASME B18.6.3 • DIN 7985 • DIN 921 • DIN 85 / ISO 1580 • DIN 84 / ISO 1207   (cheese head) • DIN 966 / ISO 7047   (raised counter sunk)
Security Screws	Alloy 230 security screws provide a solution to prevent tampering or unwanted removal. This is due to their unique designs that cannot be removed using common drivers. Tamper-proof Alloy 230 security screws can be made in a wide variety of driver styles, as well as custom per print.
Set Screws	Alloy 230 set screws are a headless fastener with a slotted or socket driver on one end and a special tip on the other. Alloy 230 set screws are available with a cup, cone, flat, full dog and half-dog point.	• ASME B18.3 • DIN 913 / ISO 4026 • DIN 914 / ISO 4027 • DIN 915 / ISO 4028 • DIN 916 / ISO 4029
Socket Head Cap Screws	For applications with little clearance, Alloy 230 socket head cap are a safe and secure fastening solution.	• ASME B18.3 • DIN 912 / ISO 4762 • DIN 7984
Vented Screws	Alloy 230 vented screws provide a way to out-gas application contaminents through a vertical hole drilled from the screw head through the threaded shaft. Vented screws are ideal for vacuums / high vacuums. Alloy 230 vented screws are available a variety of head styles.

 Alloy 230 Bolts 

Hex Head Bolts	Alloy 230 hex head bolts are the same as a hex head cap screw except that they don't have a washer face under the head. Alloy 230 hex bolts are ideal for high clamping force applications with easy access.	• ASME B18.2.1 • DIN 931 / ISO 4014 • DIN 933 / ISO 4017
Shoulder Bolts	Alloy 230 shoulder bolts consist of a head, smooth shoulder (for rotating parts) and botttom threaded segment. Nimonic shoulder bolts usually come with a socket driver.	• ASME • DIN 7379 / ISO 7379 • ISO 7370

Alloy 230 Nuts 

Hex Nuts	Alloy 230 hex nuts are available in finished hex nuts, jam nuts and heavy hex nuts.	• ASME B18.16.3 • ASME B18.2.2 • DIN 439 / ISO 4035 • DIN 934 / ISO 4032 • DIN 986
Lock Nuts	Alloy 230 lock nuts are available in all-metal (stover, flexloc, top lock, etc.) and polymer (nylon) insert styles. All-metal lock nuts are ideal for high temperatures and even load. Alloy 230 nylon insert lock nuts are an economic solution for temperatures under 350°F.	• ASME B18.16.3M • DIN 980 / ISO 7042 /     ISO 19513 • DIN 6923 / ISO 4161 • DIN 985 / ISO 10511 /   ISO 7040

Alloy 230 Studs & Threaded Rod 

Studs	Alloy 230 studs are available in fully-threaded or partially-threaded lengths of rod that are under 12" long. Available in any custom length.	• ASME B18.31.2 • DIN 976
Threaded Rod	Alloy 230 threaded rods are available in lengths greater than 1 foot. The minimum order quantity for a threaded rod is 6 feet of total length. Example quantity 1, 6ft rod or quantity 2, 3ft rods. Maximum shipment length is 6 feet.	• ASME B1.1 • DIN 975

Alloy 230 Washers 

Flat Washers	Alloy 230 washers are offered in SAE, USS, DIN, oversized, and custom sizes.	• ASME 18.21.1 • SAE / USS • DIN 125 / ISO 7089 /   ISO 7090 • DIN 126 / ISO 7091
Lock Washers	Alloy 230 lock washers are offering in the split lock washer style.	• ASME B18.21.1 • DIN 127 / ISO 7090 • DIN 6796 /  ISO 10690