aisi 440a are used for mechanical industry, pipeline, thermal equipment, petroleum drilling, chemical industry, agricultural irrigation and urban construction.
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SAE steel grades - Wikipedia
For several decades the systems were united into a joint system designated the AISI/SAE steel grades. In 1995 the AISI turned over future ... Type 440A—has the ...Marine Grade Stainless · SAE 304 · 41Xx · Unified Numbering System · HSLA Steel
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