What is the difference between sheet and plate?

The distinction between sheet and plate is as equally ambiguous as a number of other terms used to describe steel product forms. Generally speaking, a sheet is a thinner item of metal that has been cut from a continuously rolled coil. ... A plate is a thicker item of metal that has been produced (rolled) as a single item.

Coils

Plates

Sheets

Standard Specifications for Sheets, Plates & Coils

Size	mm to 120 mm thk x 1000 / 1220 / 1250 / 1500 / 2000×2000 / 2500 / 3000 / 5000 / 6000
Form	Sheet, Plate, Coil, Flat, Strip, Circle, Profile, Shim, Foil, Chequered Plate

Material of Construction in Sheets, Plates & Coils

  Stainless Steel Sheets, Plates & Coils Specifications

Grades : ASTM A240 / ASME SA240 GR 201, 202, 301, 302, 304, 304L, 309, 310, 316, 316L,
316LN, 316Ti, 317L, 321, 347, 405, 409, 410, 420, 430, 440C, 17-4ph, 904L, 253MA,
353MA, AL-6XN (N08367), Alloy 28 (N08028), A286 (S66286).

  Alloy Steel Sheets, Plates & Coils Specifications

Grades : ASTM A387 / ASME SA387 GR 11, 12, 22, 5, 9, 91, A283 Gr. C, 16Mo3

  Carbon Steel Sheets, Plates & Coils Specifications

Grades : ASTM A36, IS 2062, CK60, Wear Resistant Steel, Boiler Quality ASTM A516 GR 400 HB,
450 HB, 500 HB, 60, 70, Corten A, Corten B, Hadfield Manganese Steel

   Duplex & Super Duplex Steel Sheets, Plates & Coils Specifications

Grade : ASTM A240 / ASME SA240, ASTM A479 / ASME SA479 GR 2205 (S31803 / S32205),
SMO254 (S31254), 2507 (S32750), ZERON 100 (S32760),
Ferralium 255 (S32550), LDX 2101 (S32101).

  Nickel Alloy Sheets, Plates & Coils Specifications

Grade : ASTM B162 / ASME SB162 GR 200 (N02200), 201 (N02201),
ASTM B463 – Alloy 20 (N08020).

  Monel Alloy Sheets, Plates & Coils Specifications

Grade : ASTM B127 / ASME SB127 GR 400 (N04400), 500 (N05500).

  Inconel Sheets, Plates & Coils Specifications

Grade : ASTM B168 ASME SB 168 / ASTM B443 / ASTM B409 / ASTM B424 / ASTM B625
GR 600 (N06600), 601 (N06601), 625 (N06625), 718 (N07718), 800 (N08800),
800H (N08810), 800HT (N08811), 825 (N08825), 904L (N08904).

  Copper Alloy Sheets, Plates & Coils Specifications

Grade : ASTM B171 / ASME SB171 Commercial, ETP, OFE, CuNi 90/10 (C70600),
CuNi 70/30 (C71500), Brass, Naval Brass, Aluminium Bronze,
Admiralty Brass, Beryllium Copper.

  Hastelloy Sheets, Plates & Coils Specifications

Grade : ASTM B575 / ASME SB575, ASTM B333 / ASME SB333 GR C726 (N10276),
C4 (N06455), C22 (N06022), C2000 (N06200), X (N06002), B2 (N10665),
B3 (N10675).

  Titanium Sheets, Plates & Coils Specifications

Grade : ASTM B256 / ASME SB256 GR 2, 5 (Ti6AI4V), 7.

  Aluminium Sheets, Plates & Coils Specifications

Grade : 1100, 2014, 2024, 5052, 5083, 5454, 6061, 6063, 6101, 7075

  Other Metal Sheets, Plates & Coils Specifications

Grade : Tantalum, Molybdenum, Niobium, Zirconium, Tungsten, Magnesium.