China Low Temperature Fasteners Suppliers in China - Corrosion-Resistant, Stable from -270℃ to 0℃ Suppliers, Products

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China Low Temperature Fasteners Suppliers in China - Corrosion-Resistant, Stable from -270℃ to 0℃ Suppliers, Products

Introducing our premium low-temperature fasteners, designed to withstand extreme conditions ranging from -270℃ to 0℃, with -196℃ being the most frequently utilized temperature. As a leading factory in China, we specialize in manufacturing fasteners that are essential for applications in LNG, liquid oxygen, liquid nitrogen, cryogenic treatment equipment, and laboratory instrumentation. Our products are crafted primarily from high-quality stainless steel and specialized alloys, ensuring durability and reliability in critical environments. Partner with us, your trusted suppliers of low-temperature fasteners, for all your cryogenic needs

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Product Description

⚙ Products Features

1. 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.

2. 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.

3. Ease of Installation

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

🌐 Application Fields

🚀 1. 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.

🔥 2. 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).

⚛ 3. 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).

❄ 4. 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 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

Q What materials are commonly used for low temperature fasteners?

Low temperature fasteners are typically made from austenitic stainless steels (such as 316L, 321, 316Ti), nickel-based alloys (such as Alloy 718, Alloy 625), and special alloy steels (such as 34CrNiMo6, 30CrNiMo8). These materials maintain toughness and strength at extremely low temperatures, preventing brittle fracture.

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

Certain grades of low temperature fasteners — such as those made from Alloy 718 (2.4668), A-286 (1.4980), and 316LN (1.4429) — can withstand temperatures as low as -273℃, which is near absolute zero. This makes them suitable for quantum computing cryostats and superconducting magnet applications.

Q What standards govern low temperature fasteners?

Low temperature fasteners are governed by several international standards, including DIN EN 10269 (European standard for steels and nickel alloys for fasteners at elevated and low temperatures), ASTM B637 / B446 / B564 (American standards for nickel alloy bars and forgings), and DIN EN 10088/10272 for stainless steel products. ISO 3506-1 also covers stainless steel fastener mechanical properties.

Q Why are low temperature fasteners important in LNG applications?

In LNG (Liquefied Natural Gas) applications, operating temperatures can reach as low as -162°C. Standard carbon steel fasteners become brittle at such temperatures and risk sudden fracture under load. Low temperature fasteners made from materials like 316L or nickel alloys retain their ductility and impact resistance, ensuring safe and reliable flange and pipeline connections in LNG storage tanks and transport vessels.

Q How does thermal contraction affect the performance of low temperature fasteners?

At low temperatures, thermal contraction increases the friction between fastener threads, which actually enhances the locking performance and preload retention. For example, A-286 stainless steel screws at -170℃ demonstrate improved thread friction due to this effect. Additionally, glass fiber/epoxy composite joints show a 15% higher load-bearing capacity at -40℃ compared to room temperature.

Q Can low temperature fasteners also resist corrosion?

Yes. Many low temperature fasteners — particularly those made from austenitic stainless steel (e.g., 316L, 321) and nickel-based alloys (e.g., Alloy C22, Alloy 59) — offer excellent corrosion resistance in addition to low-temperature toughness. They comply with ISO 3506-1 standards and are widely used in marine, chemical, and energy environments where both cryogenic performance and corrosion resistance are required.

Product Detail

China Low Temperature Fasteners Suppliers in China - Corrosion-Resistant, Stable from -270℃ to 0℃ Suppliers, Products

Product Description