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Surface finish 1
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I normally see finish called out for stainless steel sheet. ASTM A 480 covers sheet finish for flat rolled stainless and heat resisting steel plate, sheet and strip. It applies to ASTM A 167, A176, A 240, A 263, A 264, A 265, A 666, A 693, A 793, and A 895.
This not an RA surface finish specification like ASME B 46.1. Instead, section 11 describes the finish for sheet as follows:
11.1 The types of finish available on sheet products are:
11.1.1 No. 1 Finish—Hot-rolled, annealed, and descaled.
11.1.2 No. 2D Finish—Cold-rolled, dull finish.
11.1.3 No. 2B Finish—Cold-rolled, bright finish.
11.1.3.1 Bright Annealed Finish—A bright cold-rolled finish retained by final annealing in a controlled atmosphere furnace.
11.1.4 No. 3 Finish—Intermediate polished finish, one or both sides.
11.1.5 No. 4 Finish—General purpose polished finish, one or both sides.
11.1.6 No. 6 Finish—Dull satin finish, Tampico brushed, one or both sides.
11.1.7 No. 7 Finish—High luster finish.
11.1.8 No. 8 Finish—Mirror finish.
11.1.9 TR Finish—Cold-worked to obtain specified properties.
NOTE 4—Explanation of Sheet Finishes:
No. 1—Commonly referred to as hot-rolled annealed and pickled or descaled. This is a dull, no reflective finish.
This not an RA surface finish specification like ASME B 46.1. Instead, section 11 describes the finish for sheet as follows:
11.1 The types of finish available on sheet products are:
11.1.1 No. 1 Finish—Hot-rolled, annealed, and descaled.
11.1.2 No. 2D Finish—Cold-rolled, dull finish.
11.1.3 No. 2B Finish—Cold-rolled, bright finish.
11.1.3.1 Bright Annealed Finish—A bright cold-rolled finish retained by final annealing in a controlled atmosphere furnace.
11.1.4 No. 3 Finish—Intermediate polished finish, one or both sides.
11.1.5 No. 4 Finish—General purpose polished finish, one or both sides.
11.1.6 No. 6 Finish—Dull satin finish, Tampico brushed, one or both sides.
11.1.7 No. 7 Finish—High luster finish.
11.1.8 No. 8 Finish—Mirror finish.
11.1.9 TR Finish—Cold-worked to obtain specified properties.
NOTE 4—Explanation of Sheet Finishes:
No. 1—Commonly referred to as hot-rolled annealed and pickled or descaled. This is a dull, no reflective finish.
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Here is a link to the surface finishes chart in my website
You can see the chart on the bottom of the page. It lists the surface finishes in microinches, micrometers and in N-values.
I hope that anyone who is dealing with surface finishes will find the table useful.
You can see the chart on the bottom of the page. It lists the surface finishes in microinches, micrometers and in N-values.
I hope that anyone who is dealing with surface finishes will find the table useful.
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