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a283 grade c h section steel mechanical properties - JIS

#0 - 1/2 140,000 180,000 C39 C45 - Fastenal Similar chemical and mechanical properties as the A193 B7M, however the material is also required to be impact tested at -100°F.Grade 2HM or 7M ASTM A320/A320M L43 4 & under 125,000 105,000 C35 Designed for low temperature applications. A 4340 alloy steel with similar mechanical properties as the L7, but with better cold-

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