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Corrosion Spring
 

17-7 PH Spring

Material Type: 17-7 PH Material Group: Stainless Steel Wire

17-7 PH Springs Description:

Cold rolled and precipitation hardened after fabrication. High strength and general purpose corrosion resistance. Magnetic in spring temper.

Engineering Data

E Mpa 203,000 Min Size (in) 0.003
E psi 29,500,000 Max Size (in) 0.125
G Mpa 75,800 Min Size (mm) 0.080
G psi 11,000,000 Max Size (in) 3.000
Density g/cm3 7.810 Surface Min b
Density lb/in3 0.282 Max Temp °C 370
Conductivity 2 Max Temp °F 700

All materials specifications are provided for general reference purposes only.

17-7 PH Springs Notes:

E Mpa Young's Modulus These factors can vary with cold work, heat treating and operational stress.
E psi
G Mpa Modulus of Rigidity
G psi
Conductivity % IACS
Surface Min Typical Surface Quality a Maximum defect depth: 0 to 0.5% of d or t
b Maximum defect depth: 1.0% of d or t
c Defect depth:less that 3.5% of d or t
Min Size Sizes commonly available for wire or strip Special sizes may be available at additional cost.
Max Size
Max Temp Maximum service temperature May vary due to operating stress

Stainless Steel 304

Available in any of the 'profile options'

Stainless Steel 304, like 302, has good mechanical properties and corrosion resistance.
Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
C 0.07
Mn 2.00
P 0.045
S 0.030
Si 1.00
Cr 17.50 19.50
Ni 8.00 10.50
Fe BAL
ASTM A313
ASTM A580
BS 970
BS 2056
W.NR 1.4301
W.NR 1.4307
UNS S30400
AWS 161
Good mechanical properties and corrosion resistance. Springs.
Engineered components.
Wire mesh.
Wire cloth.
Hose braiding.


Density 8.0 g/cm³ 0.289 lb/in³
Melting Point 1454°C 2650°F
Coefficient of Expansion 18.2 μm/m °C (20 – 100°C) 10.1 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity 70.3 kN/mm² 10196 ksi
Modulus of Elasticity 187.5 kN/mm² 27195 ksi


Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed or Spring Temper Stress Relieve 250 480 1 Air


Properties
Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 600 – 800 87 – 116 -200 to +300 -330 to +570
Spring Temper 1300 – 2200 189 – 319 -200 to +300 -330 to +570