BUMAX 88® is a premium A4 fastener that offers better corrosion resistance than standard A4 due to higher molybdenum content.
Different stainless steel grades are available to provide the optimal fastener solution to meet the needs of your specific application.
It is essential to consider the required properties, such as corrosion resistance, temperature resistance, mechanical strength and magnetic permeability, etc. Correctly chosen stainless steel grade will guarantee a trouble-free life span and low lifecycle cost. We are specialists and have a long experience of selecting the best material to optimally meet your particular needs.
BUMAX is a specialist in unique designs and custom-made fasteners developed together with our customers. However, we also keep a large stock of standardized products for immediate delivery.
|Fastener standard||Micro structure||C max||Cr||Ni||Mo||Other||PRE¹|
|BUMAX SA||800/640||1.4547, S31254||A8||Austenitic||0.01||20||18||6.2||N, Cu||43|
|BUMAX DX 129||1200/1080||1.4462, S32205||D6||Ferrite-Austenitic||0.03||22||5.2||3.2||N||36|
|BUMAX SDX 109||1000/900||1.4410, S32750||D8||Ferrite-Austenitic||0.03||25||7||4||N||42|
|BUMAX SDX NORSOK||750/550||1.4501/1.4410 S32760/S32750||Norsok M630 MDS D60||Ferrite-Austenitic||0.03||25||7||4||N, W, Cu||42|
|BUMAX ULTRA||1500/1350||Martensitic||0.02||12||9||4||Al, Ti, Cu||25|
|BUMAX HE||1000/900||1.4980, S66286||Austenitic||0.08||15||26||1.5||Ti, V|
|BUMAX HEP||1000/600||2.4952, N07080||Austenitic||0.10||19||>65||–||Al, Ti, Co|