General Alloy Overview

ASTM

Application Examples

Industry Examples

Tempers

Available Forms

Constant (Temper - Independent) Properties

ParameterValue
Electrical Conductivity, %IACS7.7
ParameterValue
Noblility, %64.8

Temper Dependent Properties

AnnealedStress RelievedHT-A (Age Hardened from Annealed Cond.)HT-CW (Age Hardened from Work Hardened Cond.)
Resistivity, nominal,
ohm-cmf (microhm cm)
135 (22.4)125 (20.8)87 (14.5)87 (14.5)
Densitiy, nominal grams/cc ( Dwt./cu. in.)15.9 (167.5)15.9 (167.5)15.9 (167.5)15.9 (167.5)
Solidus Temperature, nominal F (C)1700 (925)1700 (925)1700 (925)1700 (925)
Coefficient Of Linear Expansion Nominal, /F (70 -212F) (/C (20 - 100C))7x10^-6 (12.6x10-6)7x10^-6 (12.6x10-6)7x10^-6 (12.6x10-6)7x10^-6 (12.6x10-6)
Thermal emf vs. Platinum, (0 - 100C), uv/C nominal3444
Fatigue strength (rotating - bending) at 10(8) cycles, psi-35,000-30,000
Modulus of Elasticity, psi nominal16x10616x10^616x10^616x10^6
Wire Properties
Proportional Limit, psi nominal70,000120,000115,000130,000
Ultimate Tensile Strength, psi
.004 - .020 dia.85,000-110,000*130,000- 170,000*130,000- 165,000150,000- 200,000
021 - .080 dia. 80,000-110,000*130,000- 170,000*130,000- 165,000145,000 - 195,000
Elongation, % in 2"
.004 - .020 dia.20 min.5-15*7-142-10
021 - .080 dia.16 min.4-14*5-142-10
Knoop Hardness,** (100-gram load)
(50-gram under .005 dia.)
.004 - .020 dia.180-240270-340*280-350310 - 380
021 - .080 dia.180-240270-340*270-340290 - 370
Vickers Hardness,+ (100-gram load)
(50-gram under .005 dia.)
.004 - .020 dia.180-250270-340*285-360290 - 370
021 - .080 dia. Heated180-25270-340*285-360290 - 370
Strip, Ribbon and Rolled Shape Properties
Proportional Limit, psi, nominal65,000-115,00030,000
Strip .003 - .020 thick
Ultimate Tensile Strength, psi85,000-115,000125,000- 165,000125,000- 155,000140,000-180,000
Elongation, % in 2"*12 min3-16*3-12*2-10
Knoop Hardness (100-gram load) (50-gram under .005 thick)200 - 250270-340270-340290 - 370
Vickers Hardness (100-gram load) (50-gram under .005 thick)180-250270-340270-340290 - 370
Ribbon (rolled from wire)
Ultimate Tensile Strength, psi85,000-115,00085,000-115,000125,000- 155,000125,000- 155,000
Elongation, % in 2"*20-3-122-10
Knoop Hardness (100-gram load) (50-gram under .005 thick)200 - 250270-340270-340290 - 370
Vickers Hardness (100-gram load) (50-gram under .005 thick)180-250270-340270-340290 - 370

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