ID is between 0.18"-0.19" OD is between 0.24"-0.25" wall thickness 0.03"

Would you be able to use this for food grade applications? Im thinking of a cooling loop for beer.

Copper has better thermo properties. I’ve used coiled lines for the operation but ran ice water through it in a loop:easy to clean the outside of the line and easy to keep your beer from getting contaminated. Copper would be ideal though.

Is it annealed stainless?

I would have to say it is annealed judging from the good workability during bending and inverted flaring.

Is this suitable for nitrous hard lining?

Yes it will be fine due to the working pressure is 3k psi and your nitrous pressure should be around 800-1k.

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4LIFETIMELINES 1/4 (6.35 mm) x 25 ft 316L Marine Grade Stainless Steel Brake Line Tubing Coil

4LIFETIMELINES 1/4 (6.35 mm) x 25 ft 316L Marine Grade Stainless Steel Brake Line Tubing Coil

Product ID: 317409285

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Details

Brand
Material
Stainless
Colour
Coil Only
Nominal wall thickness
0.7
UPC
811701030186

💪Burst Pressure 11,070 psi

🔄Kink-Resistant & Shape-Retaining

🛡️316L Marine Grade Stainless Steel

Description

🚗 Drive with confidence—steel-strong brake lines that never quit!

UNMATCHED STRENGTH - With a burst pressure of 11,070 psi and tensile strength over 70,000 psi, this tubing handles extreme conditions effortlessly.
PRECISION ENGINEERING - Seamlessly drawn tubing meets SAE JI677 and ASTM A249 standards for reliable, professional-grade brake lines.
EFFORTLESS FLEXIBILITY - Advanced kink-proof technology lets you bend and shape the coil without compromising integrity or flow.
UNIVERSAL COMPATIBILITY - Perfect for Domestic, European, Japanese, and British brake line systems—adapt with confidence.
ULTIMATE RUST RESISTANCE - 316L stainless steel with molybdenum ensures marine-grade corrosion protection for lasting performance.

4LIFETIMELINES 1/4" x 25 ft brake line tubing is crafted from premium 316L marine-grade stainless steel with molybdenum for superior rust and corrosion resistance. Engineered to withstand burst pressures up to 11,070 psi and tensile strengths of 70,343 psi, this kink-resistant coil meets rigorous SAE and ASTM standards, making it the go-to choice for professional-grade brake line fabrication across multiple vehicle types.

Specifications

Manufacturer	4LifetimeLines
Part number	LTSC425
Item Weight	748 g
Product Dimensions	34.29 x 33.02 x 0.64 cm; 748 g
Manufacturer reference	LTSC425
Size	1/4" x 25 ft
Color	Coil Only
Material	Stainless Steel
Item Package Quantity	1
Special Features	corrosion proof, easy bend, kink proof, rust proof
Batteries Included?	No
Batteries Required?	No