China Low Temperature Fasteners Supplier - Factory Direct Low-Temp Stability & Corrosion Resistance Products

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China Low Temperature Fasteners Supplier - Factory Direct Low-Temp Stability & Corrosion Resistance Products

Our factory specializes in manufacturing low-temperature fasteners that operate effectively within a temperature range of -270℃ to 0℃, with -196℃ being the most commonly utilized temperature for a variety of applications. As leading suppliers in China, we provide high-quality fasteners used in industries such as LNG, liquid oxygen, liquid nitrogen, cryogenic treatment equipment, as well as inspection and laboratory environments. Our products are primarily made from stainless steel and specialized alloys, ensuring durability and reliability in extreme conditions.

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Product Description

Products Features

❄️

Low Temperature Stability

It maintains high strength even below -60℃, preventing brittle fracture. It is suitable for equipment such as liquefied natural gas pumps and liquid nitrogen pumps.

Carbon steel or alloy steel (such as 35CrMoA/42CrMoA) with a body-centered cubic crystal structure can have its hardness and impact performance optimized through tempering heat treatment.

The preload force is positively correlated with temperature: For A-286 stainless steel screws, at -275℉ (-170℃), due to the thermal contraction effect, the thread friction increases, and the locking performance improves.

The glass fiber/epoxy resin composite material joints have a 15% higher load-bearing capacity at -40℃ compared to at room temperature, and the pre-tightening torque effect is even more significant.

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Resistance to Corrosion

Stainless steel fasteners (as per the ISO 3506-1 standard) possess both corrosion resistance and mechanical properties in low-temperature environments.

Wind turbine bolts (such as 10.9/12.9 grade) need to withstand multi-axis stress and dynamic loads, and should avoid brittle fracture at low temperatures.

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Ease of Installation

The low-friction coefficient design facilitates installation and disassembly in low-temperature environments.

Application Fields

🚀 Aerospace

Rocket fuel storage tanks, liquid hydrogen/liquid oxygen pipeline connections (such as in SpaceX's cryogenic propulsion system). The wind tunnel model employs a low-temperature locking device, which enhances the connection stability through the thermal contraction effect.

⛽ Liquefied Natural Gas (LNG) and Energy

LNG storage tanks, transport ships and pipeline flange connections (with working temperatures as low as -162°C). Liquid nitrogen/liquid helium storage equipment (such as for fixing superconducting magnets).

⚛️ Superconductivity and Quantum Technology

The cryogenic support structure of superconducting magnets (such as those in MRI equipment). The cryogenic thermostat of a quantum computer (close to absolute zero).

🧊 Food Freezing and Cold Chain Logistics

Fixed shelves for ultra-low temperature cold storage (-80°C). Liquid nitrogen quick-freezing equipment conveyor belt fasteners.

The Following Is the Main Types of Low Temperature Fasteners

Digital Grade	Material	Executive Standard	Withstand Temperature
Low Temperature Fasteners Available Types
1.1133	20Mn5	—	-20℃
1.6582	34CrNiMo6	DIN EN 10269	-40℃
1.6580	30CrNiMo8	DIN EN 10269	-40℃
1.5523	19MnB4	—	-60℃
1.7218	25CrMo4	—	-60℃
1.7219	26CrMo4	—	-60℃
1.7225	42CrMo4	—	-100℃
1.6583	41NiCrMo7-3-2	—	-100℃
1.5680	X12Ni5	DIN EN 10269	-120℃
2.4952	NiCr20TiAI	DIN EN 10269	-196℃
2.4669	NiCr15Fe7TiAI	—	-196℃
1.4980	X6NiCrTiMoVB25-15-2	DIN EN 10269	-196℃
1.5662	X8Ni9	—	-196℃
1.4401	X5CrNiMo17-12-2	—	-196℃
1.4404	X2CrNiMo17-12-2	—	-196℃
1.4403	X4CrNi18-12	DIN EN 10269	-196℃
1.4301	X4CrNi18-10	—	-196℃
1.4948	X6CrNi18-10	—	-196℃
1.4307	X2CrNi18-9	—	-196℃
1.4919	X6CrNiMoB17-12-2	—	-196℃
1.4941	X6CrNiTiB18-10	—	-196℃
2.4856 / UNS N06625 / Alloy 625	NiCr22Mo9Nb	ASTM B446/B564/E112	-196℃
2.4610 / UNS N06455 / Alloy C4	NiMo16Cr16Ti	ASTM B574/B564	-196℃
2.4605 / UNS N06059 / Alloy 59	NiCr23Mo16AI	ASTM B574/B564	-196℃
2.4602 / UNS N06022 / Alloy C22	NiCr21Mo14W	ASTM B574/B564	-196℃
1.6909wk	X5CrMnNiN18-9	—	-196℃
1.4562 / UNS N08031 / Alloy 31	X1NiCrMoCu32-28-7	ASTM B581/B649	-196℃
HiMo88	A4-80 / A4L-80 / 316L	—	-200℃
1.4429	X2CrNiMoN17-13-3	—	-270℃
1.4910	X3CrNiMoBN17-13-3	—	-270℃
2.4668 / UNS N07718 / Alloy 718	NiCr19Fe19Nb5Mo3	DIN EN 10269 / ASTM B637	-273℃
1.4980 / Alloy 286 / 660A/B/C/D	X6NiCrTiMoVB25-15-2	DIN EN 10269 / ASTM 453	-273℃
1.4910	X3CrNiMoBN17-13-3	DIN EN 10269	-273℃
1.4571 / AISI 316Ti	X6CrNiMoTi17-12-2	DIN EN10088/10272	-273℃
1.4541 / AISI 321	X6CrNiTiB18-10	DIN EN10088/10272	-273℃
1.4436 / AISI 316L	X3CrNiMo17-13-3	DIN EN10088/10272	-273℃
1.4435 / AISI 316L	X2CrNiMo18-14-3	DIN EN10088/10272	-273℃
1.4429 / AISI 316LN	X2CrNiMoN17-13-3	DIN EN10269/10272	-273℃
1.4306 / AISI 306	X2CrNi19-11	DIN EN10088/10272	-273℃

Frequently Asked Questions (FAQ)

Q What is the lowest temperature that low temperature fasteners can withstand?

Certain grades of low temperature fasteners, such as those made from materials like 1.4429 (X2CrNiMoN17-13-3), Alloy 718 (2.4668), and A-286 (1.4980), are capable of withstanding temperatures as low as -273℃ — approaching absolute zero. These are commonly used in quantum computing cryostats and superconducting magnet systems.

Q What materials are commonly used for low temperature fasteners?

Common materials include austenitic stainless steels (e.g., 316L, 321, 316Ti), nickel-based alloys (e.g., Alloy 625, Alloy 718, Alloy C22), and low-alloy steels such as 34CrNiMo6 and 30CrNiMo8. These materials maintain toughness and strength at cryogenic temperatures without becoming brittle.

Q Why are standard carbon steel fasteners not suitable for cryogenic applications?

Standard carbon steel fasteners have a body-centered cubic (BCC) crystal structure, which becomes brittle at sub-zero temperatures. This can lead to sudden brittle fracture under load. Specially selected and heat-treated alloys are required to maintain impact resistance and ductility in cryogenic environments.

Q In which industries are low temperature fasteners most widely used?

Low temperature fasteners are widely used in aerospace (rocket propulsion, wind tunnels), LNG and energy (storage tanks, pipeline flanges), superconductivity and quantum technology (MRI machines, quantum computers), and food cold chain logistics (ultra-low temperature freezers, liquid nitrogen equipment).

Q What executive standards apply to low temperature fasteners?

Low temperature fasteners are manufactured and tested according to international standards including DIN EN 10269, DIN EN 10088/10272, ASTM B446/B564/B637, ASTM B574/B564, ISO 3506-1, and ASTM B581/B649, depending on the material grade and application requirements.

Q How does low temperature affect the preload and locking performance of fasteners?

At low temperatures, thermal contraction increases thread friction, which generally improves locking performance. For example, A-286 stainless steel screws at -170℃ show enhanced preload retention due to this effect. Additionally, glass fiber/epoxy composite joints exhibit up to 15% higher load-bearing capacity at -40℃ compared to room temperature, making pre-tightening torque even more effective in cryogenic conditions.

Product Detail

China Low Temperature Fasteners Supplier - Factory Direct Low-Temp Stability & Corrosion Resistance Products

Product Description