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Non-Magnetic Fasteners--suitable for precision machinery and aerospace applications, avoiding magnetic interference to the equipment

Special Material Bolts--include super stainless steel, titanium alloys, nickle-based alloys, copper-nickle alloys, cobalt alloys, NASA AMS high-performance materials, etc.

Plastic Fasteners---It is lightweight and corrosion resistance

Classification Society Fasteners---used in ships and marine engineering

High-End Special Raw Material Spring Wire---with high tensile strength

Precision Machined Parts --Ultra High Precision,used in precision electronics, medical equipment, semiconductor equipment, inspection instrument, optical equipment and other fields.

Low Temperature Fasteners-- low Temperature stability, resistance to corrosion

High Temperature Fasteners-- maintain high strength under high temperatures

High Strength Alloy Fasteners--high temperature resistant and Ultra-high strength

High-Strength Stainless Steel Fasteners Inconel Bolts

0102030405

Special Material Bolts Supplier in China - Super Stainless Steel, Titanium, Nickel Alloys, and More from Our Factory

Discover our premium range of special materials, specifically designed for high-performance applications. As a leading supplier in China, we offer an extensive selection of super stainless steel, titanium alloys, nickel-based alloys, copper-nickel alloys, cobalt alloys, and NASA AMS high-performance materials. Our factory utilizes advanced manufacturing techniques to ensure the highest quality products that meet stringent industry standards. Trust our expertise and innovation to provide you with the best materials for your projects

Product Detail

Products Features

1

Carbon Steel Bolt
Low cost, high strength, and performance can be enhanced through heat treatment. It is usually applied to non-corrosive environments such as construction engineering and mechanical manufacturing.
2

Stainless Steel Bolt
Stainless steel bolts have strong corrosion resistance. Austenitic stainless steel (such as 304 and 316) also possesses high temperature resistance and weldability. It is usually applied in corrosive environments such as those in the chemical industry, shipping, and food processing.
3

Alloy Steel Bolt
Alloy steel is added with elements such as chromium and molybdenum to enhance its strength, high-temperature resistance and fatigue resistance.
4

Ultra-high-strength Bolt (UHS)
The performance grade is marked as 14.8U, 15.8U, etc. It is formed into bainite structure through isothermal quenching, and it is lightweight with high clamping force. It is usually used in key weight-reduction scenarios such as engines and chassis.
5

Other Special Materials
Copper and copper alloy fasteners: With good conductivity (such as T2 brass), used in electronic equipment. Titanium alloy fasteners are lightweight and highly durable, but they are costly. They are used in medical devices or aerospace applications.

Application

Special material bolts, due to their unique material properties and processing requirements, are widely used in high-demand industrial sectors.

Corrosion-resistant Environment

In acidic or high-pressure conditions (as per NACE MR0175 standards), use duplex stainless steel (such as 2205) or nickel-based alloys (such as Inconel 718) for bolts to ensure the sealing performance of the flange connection.

High-temperature and High-pressure Pipelines

The flange bolts of the heat exchanger must comply with the TEMA standard. In some scenarios, the insulation design needs to be adjusted to accommodate high-strength materials.

Extreme Environmental Adaptability

Aviation titanium fasteners must pass a -196℃ low-temperature test to ensure the reliability of key components such as LNG storage tanks.

Fatigue Resistance

The bolts of the high-speed train bogie need to pass a temperature shock test ranging from -40℃ to 120℃. The material is carburized steel 20CrMnTi.

High-strength Lightweight

The hot stamping steel B1500HS bolts are used in automotive safety components, with tensile strength exceeding 1500 MPa, enhancing the collision energy absorption capability.

Miniaturization Requirement

Precision bolts of M3-M48 specifications (such as in accordance with ISO 4014 standard) are suitable for assembly of semiconductor equipment.

Offshore Wind Power

The foundation ring bolts must meet the ISO 4014 tolerance grade and have a shear strength of ≥ 600 MPa.

Insulation and Low Magnetic Interference

PEEK material bolts are used for fixing PCB boards, featuring both high-temperature resistance (260℃) and electrical insulation properties.

The Following Is the Main Types of Special Material Bolts

Special Material Bolts Available Types
Material Classification	Material Grade
Ultra High Strength Stainless Steel	XM-19、904L、254SMO、317L、347H、1.4529、25-6MO
Duplex Stainless Steel	F51、F53、F55、F60、329、2205、2507、S31803、S32760、1.4460、1.4462
Titanium Alloy	TA 1 — TA 19 TB 2 — TB 8 TC 1 — TC 17
Pure Nickel Material	Nickel200 (UNS N02200) Nickel201 (UNS N02201) Nickel270
Non-magnetic Stainless Steel	0Cr21Ni6Mn9N、0Cr16Ni22Mn9Mo2、1.4436
Hastelloy	C276、C22、C59、C4、C2000、B2、B3、B4、G35、X
Monel	400、404、K500、R405
Inconel	601、617、625、686、690、718、725、X750、804、840
Incoloy	20、800、800H、800HT、801、810、825、890、901、925、926
Nimonic	75、80A、86、90、95、100、105、115
Aerospace Material Specification	4676、5510、5528、5542、5592、5646、5651、5716、5726、5651、5662、5643

Frequently Asked Questions (FAQ)

Q What is the difference between carbon steel bolts and stainless steel bolts?

Carbon steel bolts offer low cost and high strength, making them suitable for non-corrosive environments such as construction and mechanical manufacturing. Stainless steel bolts, on the other hand, provide superior corrosion resistance and are ideal for use in chemical, marine, and food processing environments where exposure to moisture or chemicals is common.

Q What are ultra-high-strength (UHS) bolts and where are they used?

Ultra-high-strength bolts are graded as 14.8U, 15.8U, etc., and are formed into a bainite structure through isothermal quenching. They are lightweight yet provide extremely high clamping force. They are commonly used in weight-critical applications such as automotive engines and chassis components.

Q Which bolt materials are recommended for high-temperature and high-pressure pipeline applications?

For high-temperature and high-pressure pipelines, such as heat exchanger flange bolts, materials compliant with TEMA standards are recommended. Alloy steel bolts containing chromium and molybdenum, as well as nickel-based alloys like Inconel 718 or Incoloy 800H, are commonly selected for their excellent thermal stability and pressure resistance.

Q What special material bolts are suitable for corrosive environments?

For acidic or high-pressure corrosive environments (per NACE MR0175 standards), duplex stainless steel grades such as 2205 or 2507, as well as nickel-based alloys such as Hastelloy C276 or Inconel 718, are recommended. These materials ensure long-term sealing performance and structural integrity in demanding conditions.

Q Are titanium alloy bolts suitable for aerospace and medical applications?

Yes. Titanium alloy bolts (ranging from TA1 to TC17 grades) are highly valued in aerospace and medical fields due to their excellent strength-to-weight ratio, biocompatibility, and corrosion resistance. They must pass stringent low-temperature tests (down to -196℃) to ensure reliability in extreme conditions, such as LNG storage tanks and aircraft structures.

Q What is the advantage of PEEK material bolts in electronic applications?

PEEK (Polyether Ether Ketone) material bolts offer excellent electrical insulation and high-temperature resistance up to 260℃. They are widely used for fixing PCB boards and other electronic components where both thermal stability and non-magnetic, non-conductive properties are required, making them ideal for sensitive electronic assemblies.