BÖHLER A750

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BÖHLER A750 is an austentic, corrosion and heat-resistant chromium nickel steel, niobium stabilized and solution treated. It have been used typically for parts requiring good corrasion resistance and which will be subjected to elevated temperatures during fabrication or in service and for parts requiring oxidation resistance up to 1500 °F (816°C),
but usage is not limited to such applications. Compared to common 13% chromium steel, it offers higher corrosion resistance at lower strength and good weldability. No post-weld heat treatment required. The steel is resistant to atmospheric corrosion and the action of steam, water and acid as well as alkaline solutions. For optimum resistance, surfaces should be pickled or polished. Cold forming properties are very good. The steel is capable of taking a mirror finish.

Available Product Shapes

Long Products: Presented data refer exclusively to long products. Please observe the detailed explanations at the end of the data sheet (pdf).

Melting Route

Airmelted

Material Numbers

SEL
1.4546
EN
X5CrNiNb18-10
EN
Z6CnNb1810
UNS
S34700

Standards

AMS
5646
BS
S130
BS
970 Pt.3

Chemical Composition

* Chemical Composition (Average %)

C
max. 0.08
Si
max. 1.00
Mn
max. 2.00
P
max. 0.040
S
max. 0.030
Cr
17.00 to 19.00
Mo
max. 0.75
Ni
9.00 to 12.00
Cu
max. 0.75
Co
max. 1.00
Nb
10xC to 1.10

Applications

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