Stainless Steel Specification

STAINLESS STEEL COIL SHEET
Finish Characteristics Applications
No. 1 This finish, produced by hot-rolling, annealing and pickling, is characterized by its white pickled surfaces. Sheets and plates with this finish are generally used in industrial applications. Industrial tanks, Chemical industry equipment.
No. 2D A dull cold rolled finish produced by cold rolling annealing and pickling. Sheets with this finish possesses excellent drawability in addition to a dense surface. General uses for deep drawing.
No. 2B This finish is produced by final light cold-rolling (skin pass line), consequently it has a brighter surface and is slightly harder than No. 2 finish. General application.
No. 3 An intermediate polished finish (100-120 mesh), used where a surface is required for post-production treatment. Kitchen ware, Interior-Exterior decoration for building.
No. 4 The most popular of all polished finishes. Produced with abrasives of approximately 150-180 mesh in its finial stage. This finish is widely used where ease in cleaning, an attractive appearnce and high corrosion resistance are required. Food-processing facilities, Bath-tub.
No. 8 The finish is produced with abrasives of over 800 mesh. Reflector, Mirror, Interior-Exterior decoration for building.
BA (Bright Annealed) This finish retains the luster produced by cold-rolling and annealing in a non-oxidizing atmosphere. Used in an excellent finish is required like automobile trim and reflectors, architectural purposes.
HL (Hair Line) This finish is obtained by continuous linear polishing. It produces a soft finish which is effective in dissipating glare. Most Suitable for architectural purpose, vehicles, show cases, etc.
CHEMICAL COMPOSITION (% in weight)
Acesita ASTM DIN C Mn Si P S Cr Ni Mo N2 Others
AISI UNS
Austenitcs
P301A 301 S30100 1.4310 0,15 2,00 1,00 0,045 0,03 16,0 to 18,0 6,0 to 8,0 0,10
P304A/B 304 S30400 1.4301 0,08 2,00 0,75 0,045 0,03 18,0 to 20,0 8,0 to 10,5 0,10
P304D 304L S30403 1.4307 0,03 2,00 0,75 0,045 0,03 18,0 to 20,0 8,0 to 12,0 0,10
P316B 316 S31600 1.4401 0,08 2,00 0,75 0,045 0,03 16,0 to 18,0 10,0 to 14,0 2,00 to 3,00 0,10
P316B 316L S31603 1.4404 0,03 2,00 0,75 0,045 0,03 16,0 to 18,0 10,0 to 14,0 2,00 to 3,00 0,10
P321A 321 S32100 1.4541 0,08 2,00 0,75 0,045 0,03 17,0 to 19,0 9,0 to 12,0 0,10 5(C+N2) ≤ Ti ≤ 0,70
Ferritics
P409A/S 409L S40610 1.4512 0,03 1,00 1,00 0,04 0,03 10,50 to 11,7 0,50 0,030 6(C+N2) ≤ Ti ≤ 0,50; Nb = 0,17 max
P430A 430 S43000 1.4016 0,12 1,00 1,00 0,04 0,03 16,0 to 18,0 0,75
P430E 1.4511 0,12 1,00 1,00 0,04 0,03 16,0 to 18,0 0,75 Nb = 0,60 max
P439A S43932 0,03 1,00 1,00 0,04 0,03 17,0 to 19,0 0,50 0,030 0,20+4(C+N2)≤ Ti+Nb ≤ 0,75
P441A 1.4509 0,03 1,00 1,00 0,04 0,015 17,5 to 18,5 0,100 3C+0,30 ≤ Nb ≤ 1,00; Ti = 0,10 to 0,60″
P444A 444 S44400 0,025 1,00 1,00 0,04 0,03 17,5 to 19,5 1,00 1,75 to 2,50 0,035 0,20+4(C+N2)≤ Ti+Nb ≤ 0,80
Martensitics
P420A/D 420 S42000 1.4028 0,15 1,00 1,00 0,04 0,03 12,0 to 14,0 0,75 0,50
P498A 1.4110 0,50 1,00 1,00 0,035 0,01 13,0 to 15,0 0,50 to 0,55
Typical Mechanical Properties Heat Treatment
Tensile Strength (MPa) Yield Point (MPa) Elogation 0mm (MPa) Rockwell-B Hardness Fatigue Point (MPa) Cold Bending Erichsen Test (mm) Initial Forming Temperature (ºC) Scale Forming Temperature (ºC) Continuous Annealing (ºC) Cooling Quenching Temperature (ºC)
800 270 52 82 241 180º 13 1150-1260 815 1010-1120 quick not hardenable
700 300 54 85 241 180º 12 1150-1260 840 1010-1120 quick not hardenable
630 300 54 82 180º 12 1150-1260 840 1010-1120 quick not hardenable
620 300 52 85 269 180º 12 1150-1260 840 1010-1120 quick not hardenable
620 300 52 80 180º 12 1150-1260 840 1010-1120 quick not hardenable
390 210 38 65 180º 10 885 950 not hardenable
480 330 27 80 180º 9 1040-1120 650 760-820 not hardenable
430 300 30 78 180º 8 1040-1120 650 780-840 not hardenable
445 280 37 74 180º 9 not hardenable
460 300 35 78 180º 10 not hardenable
180º 10 not hardenable
620 350 25 88 1090-1200 650 730-790 quick 930-1040
95 1090-1200 650 730-790 quick 1000-1070
Thickness Width tolerances
9 to 149 150 to 199 200 to 299 300 to 599 600 to 999
0,40 ≤ e ≤ 1,75 0,13 0,13 1,25 0,40 – 0
2,50 ≤ e ≤ 3,50 0,25 0,40 0,40 0,50 + 1
e = thickness
1. Dimensions in mm
2. Tolerances are -0/+
indicated value or –
indicated value /+0