Do these buckle at 425 degrees?

I don't recall if I've used mine at that high of a temp. I have used them under the broiler (gas) for 10 mins or so and they were fine. They are pretty thick and heavy-gauge aluminum...not your typical cheap "big box store" specials. I've had several of those that after a few minutes at a high temp you can actually hear them "pop" when they buckle. I would think these would hold up well at high temps just like most all Calphalon does. Regardless, they have a warranty from Calphalon so if they buckle, send them back. :)

What are these baking made out of? I wish to avoid aluminum.

Yup, they're steel. Work great, don't curl and clean up easy.

What are the interior and exterior dimensions?

Exterior 13 x 17 3/4 Interior 12 x 17

Do the pands have non stick coating?

There is a smooth coating on it. Cookies slide off easily after baking.

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Calphalon Premium Nonstick Baking Pans Set of 2, 12 x 17 inch, Silverware, Heavy Gauge Steel Core

Product ID: 279363080

Details

Brand
Calphalon
Colour
Silver
Material
Alloy Steel
Product dimensions
43.2L x 30.5W
Size
2-pc

📏Two versatile 12x17 inch pans

🔥2X better nonstick release

🛠️Heavy gauge steel core for warp-free baking

Description

🍪 Bake Like a Pro, Clean Like a Boss!

SPILL PROOF BAKING - Raised edges keep your creations contained—perfect for everything from sheet cakes to crispy cookies without mess.
LIFETIME CONFIDENCE - Backed by Calphalon’s full lifetime warranty, this set is built to last and impress for years to come.
WARP FREE PERFECTION - Heavy gauge steel core ensures even heating and prevents warping, so your bakeware stays flawless batch after batch.
DISHWASHER SAFE CONVENIENCE - Spend less time cleaning and more time enjoying your culinary masterpieces with hassle-free dishwasher safe design.
EFFORTLESS RELEASE EVERY TIME - Interlocking nonstick layers deliver up to 2X better release than classic bakeware—no more stuck cookies or cakes.

The Calphalon Premium Nonstick Baking Pans Set includes two 12x17 inch heavy gauge steel pans with interlocking nonstick layers that provide up to twice the release performance of classic bakeware. Designed for even heating and warp resistance, these dishwasher-safe pans feature raised edges to prevent spills and come with a lifetime warranty, making them a reliable and versatile choice for professional-quality baking.

Specifications

ASIN	B008BUKO6G
Brand Name	Calphalon
Color	Silver
Customer Reviews	4.5 4.5 out of 5 stars (4,307)
Global Trade Identification Number	00016853055449
Is the item dishwasher safe?	Yes
Item Dimensions L x W x H	43.2L x 30.5W x 5.1H centimeters
Item Type Name	alphalon Nonstick Bakeware
Item Weight	1.97 kg
Manufacturer	Calphalon
Manufacturer Part Number	1826034
Material Type	Alloy Steel
Material Type Free	PTFE Free
Model Number	1826034
Number of Items	1
Size	2-pc
UPC	016853055449
Unit Count	2 Count

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