GARBAFLEX 177 PH

Flat and shaped wire

GARBAFLEX 177PH is a precipitation hardenable stainless wire for flat and shaped wire applications in corrosive atmos-phere and elevated working temperature.

Chemical composition

C (%) Si (%) Mn (%) P max. (%) S max. (%) Cr (%) Ni (%) Al (%)
0.09 0.70 1.00 0.025 0.015 16.00 - 18.00 6.50 - 7.80 0.70 - 1.50

Mechanical properties

For flat rolled wire

Width (mm) Tolerance (± mm)
1.00 - 5.00 0.050
5.01 - 8.00 0.070
8.01 - 10.00 0.100
Thickness (mm) Tolerance (± mm)
0.30 - 0.80 0.013
0.81 - 1.00 0.019
1.01 - 1.60 0.025
1.61 - 2.30 0.050

For shaped wire

Width (mm) Tolerance (± mm)
- 1.50 0.020
1.51 - 3.00 0.030
3.01 - 5.00 0.040
5.01 - 7.00 0.050
7.00 - 0.060

Execution

Rolled on 2 sides (flat).
Rolled on 4 sides (shaped).

Surface conditions

Surface

Bright. Surface defects max. 1% of thickness.

Physical properties

E and G modulus of elasticity

Abt. 180 kN/mm2 in drawn condition.
Abt. 185 kN/mm2 after heat treatment.

E and G modulus of shear

Abt. 70 kN/mm2 in drawn condition.
Abt. 73 kN/mm2 after heat treatment.
Density: 7.90 kg/dm3.

Recommendations

Heat treatment

For best spring properties the springs are heat treated at a temperature of 480 ºC (896 ºF) for 1 hour and then air cooled. The tensile strength of the wire before and after this treatment is given in the table for steel grade GARBA 177PH.