ASTM B370 Copper Product Guide

Applications | Specifications | Mechanical and Chemical Data | Tolerances

Overview

Commonly referred to as roofing copper, this sheet is certified to the ASTM B 370 specification and is 99% pure copper. Different manufacturers may give different alloy numbers as part of their efforts to brand their product, but don't let that confuse you. It's this stuff.

Common Trade Names

Roofing Architectural Copper

Other Resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

Products

ASTM B370 Sheet

Applications

Roofing
Jewelry

Specifications

ASTM
B370


Physical Properties ASTM B370
Density	0.321 lb/in3
Ultimate Tensile Strength	32-42 ksi
Yield Tensile Strength	20 ksi
Shear Modulus	6,380 ksi
Shear Strength	24.7 ksi
Hardness Rockwell \| Brinell	F84 \| 80 max.
Elongation at Break Percentage	33%
Reduction of Area	75%
Modulus of Elasticity	16,700 ksi
Poisson's Ratio	0.33
Machinability Percentage	20%
Melting Point	1,950-1,980 °F
Specific Heat	9.2 x 10^-2 BTU/lb-°F
Thermal Conductivity	2690 BTU-in/hr-ft^2-°F
Electrical Conductivity	100% IACS

Chemistry Information
Element	Percentage
Cu	99
Cu	99