Very high strength and excellent corrosion resistance
BUMAX DX 129 is an advanced high-strength grade that combines excellent corrosion resistance, with very high mechanical strength, equivalent to 12.9 carbon steel. BUMAX DX 129 does not suffer risks commonly associated with high-tensile carbon steel fasteners, such as low ductility and internal hydrogen embrittlement.
With a tensile strength of min 1,200 MPa and a yield strength min 1,080 MPa, the grade can replace coated 12.9 carbon steel bolts in demanding applications with excellent results. Despite its high strength, elongation is comparable with A4-80 (minimum 0.3 x d).
BUMAX DX 129 offers excellent corrosion resistance with a Pitting Resistance Equivalent Number (PREN) of >34, compared with standard stainless steel. The grade also offers very good fatigue properties.
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Stainless steel fasteners with enhanced properties
BUMAX DX 129 fasteners outperform standard duplex fasteners in terms of:
High strength
Corrosion resistance
Ductility
Fatigue resistance
Thermal expansion coefficient
These enhanced properties are achieved by using premium duplex stainless steel that is produced to stringent BUMAX specifications by the highest quality European steel mills. Our expert fastener manufacturing processes ensure a high-performance product that is extremely reliable.
Fasteners for demanding applications
BUMAX® DX 129 is an excellent choice for applications where very high strength, ductility and corrosion resistance is required.
Standards
- UNS S32205
- EN 1.4462
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Contact us to find out how BUMAX DX 129 fasteners can benefit your applications.
