1,246,772. Iron based alloys. REPUBLIC STEEL CORP. Feb. 9, 1970 [April 7, 1969], No. 6103/70. Heading C7A. A stainless alloy steel comprises by weight per cent: Cr 14-18 B 0À0005-0À005 Nb 0-0À12 Fe balance Preferably the Nb is present to at least 0À02%. Also present may be: C 0-0À12 Mo 0À7-1 Mn 0-1 Si 0-1 S 0-0À03 P 0-0À04 and in one example also: Cu 0À1 Ni 0À26 Sn 0À008 Al 0À02 Pb 0À001 Rolled strips of these alloys may be produced by melting the Fe/Cr steel, alloying with the B and Nb, casting into ingots, hot-rolling into slabs, undirectionally hot-rolling the slabs into strip, and then annealing, pickling cold-rolling and tempering the strip. The ingot size is preferably 25 x 36 inches.
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机译：1,246,772。铁基合金。共和国钢铁公司，1970年2月9日[1969年4月7日]，编号6103/70。标题C7A。一种不锈钢钢，按重量百分比计：Cr 14-18 B 0-0005-0-005 Nb 0-0-12 Fe余量优选Nb的含量至少为0-02％。也可能存在：C 0-0‑12 Mo 0‑7-1 Mn 0-1 Si 0-1 S 0-0‑03 P 0-0‑04，在一个示例中还包括：Cu 0‑1 Ni 0‑26 Sn 0‑008 Al 0‑02 Pb 0‑001这些合金的轧制带可以通过熔化Fe / Cr钢，与B和Nb合金化，铸造成锭，热轧成板坯，无方向性地将板坯热轧成带材，然后退火，酸洗冷轧和回火来生产。铸锭尺寸优选为25×36英寸。
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