Custom Low Temperature Fasteners from China Suppliers - Corrosion Resistant & Stable at -270℃ to 0℃ Exporter, Product

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Custom Low Temperature Fasteners from China Suppliers - Corrosion Resistant & Stable at -270℃ to 0℃ Exporter, Product

Our company, a leading factory and suppliers in China, specializes in low-temperature fasteners designed for extreme conditions, operating effectively within a temperature range of -270℃ to 0℃. The most common low temperature application is at -196℃. These fasteners are essential in various industries, including LNG, liquid oxygen, liquid nitrogen, cryogenic treatment equipment, and laboratory inspections. We primarily utilize high-quality stainless steel and specialized alloys to ensure durability and performance in cryogenic environments.

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Product Description

Product 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) & 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 & Quantum Tech

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 & Cold Chain

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

Main Types of Low Temperature Fasteners

Low Temperature Fasteners Available Types
Digital Grade	Material	Executive Standard	Withstand Temperature
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 / Alloy625	NiCr22Mo9Nb	ASTM B446/B564/E112	-196℃
2.4610 / UNS N06455 / Alloy C4	NiMo16Cr16Ti	ASTM B574/B564	-196℃
2.4605 / UNS N06059 / Alloy59	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 / Alloy31	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 / AISI316Ti	X6CrNiMoTi17-12-2	DIN EN10088/10272	-273℃
1.4541 / AISI321	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

QWhat are low temperature fasteners and why are they needed?

Low temperature fasteners are specially designed bolts, nuts, screws, and other connecting components engineered to maintain mechanical integrity and performance in cryogenic environments (typically below -40℃). They are required in industries such as LNG, aerospace, superconducting technology, and cold chain logistics where standard fasteners would become brittle and fail.

QWhat is the lowest temperature that low temperature fasteners can withstand?

Certain grades such as Alloy 718 (2.4668), A-286 (1.4980), and austenitic stainless steels like X2CrNiMoN17-13-3 (1.4429) can withstand temperatures as low as -273℃, approaching absolute zero. These are used in quantum computing cryostats and superconducting magnet applications.

QWhich materials are most commonly used for low temperature fasteners?

The most common materials include austenitic stainless steels (e.g., 316L, 321, 316Ti), nickel-based superalloys (e.g., Alloy 625, Alloy 718, Alloy C22), and specialized alloy steels such as 34CrNiMo6 and 42CrMo4. The choice depends on the required temperature range, corrosion resistance, and mechanical load requirements.

QWhat executive standards apply to low temperature fasteners?

Low temperature fasteners are manufactured and tested according to internationally recognized standards including DIN EN 10269 (European standard for fastener steels at elevated and low temperatures), ASTM B637, ASTM B446/B564, ASTM B574/B564, and DIN EN10088/10272. These standards ensure consistent material composition, mechanical properties, and testing procedures.

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

At cryogenic temperatures, thermal contraction causes the fastener material to shrink, which increases thread friction and generally improves locking performance. For example, A-286 stainless steel screws at -170℃ exhibit enhanced locking due to this thermal contraction effect. Glass fiber/epoxy composite joints show approximately 15% higher load-bearing capacity at -40℃ compared to room temperature.

QAre low temperature fasteners also corrosion resistant?

Yes. Most low temperature fasteners, particularly those made from austenitic stainless steels and nickel-based alloys, offer excellent corrosion resistance in addition to their cryogenic performance. Stainless steel fasteners conforming to ISO 3506-1 provide both corrosion resistance and the necessary mechanical properties required for low-temperature service environments.

Product Detail

Custom Low Temperature Fasteners from China Suppliers - Corrosion Resistant & Stable at -270℃ to 0℃ Exporter, Product

Product Description