GARBA 177 Supreme

Precipitation hardenable stainless spring wire. Shaved and EC-tested*. For applications demanding superior fatigue properties.

GARBA 177 Supreme® is a semi-austenitic precipitation-hardenable stainless steel, processed by Vacuum arc remelting (VAR), which reduces the risk of harmful inclusions. The VAR process together with a shaved surface improves the fatigue resistance as compared to GARBA 177PH.

Very high fatigue
Corrosion resistance
High tensile
Heat resistance

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Product request

Very high fatigue with excellent surface condition

 for applications with very high cyclic fatigue requirements

Stainless Steel

Remelted steel with excellent inclusion cleanliness and structure. Precipitation hardening for increased strength.

Moderate temperatures

suitable for use in slightly elevated temperatures

Product information

Technical specification

Mechanical properties

Chemical composition

Surface conditions

Physical properties



Property Value
E modulus of elasticity Abt. 190 kN/mm2 in drawn condition. Abt. 200 kN/mm2 after heat treatment.
G modulus of shear Abt. 73 kN/mm2 in drawn condition. Abt. 78 kN/mm2 after heat treatment.
Density 7.90 kg/dm3

Steel grades and product standards

Nearest equivalent product standards EN ISO 6931-1 ASTM A313 AMS 5678 BS 2056 301 S81 JIS G4314
Nearest equivalent steel grades EN/DIN 1.4568 AISI/SAE 631 JIS SUS 631

Applications using GARBA 177 Supreme