Kadıköy, Istanbul · Dilovası plant & warehouse · London office +90 216 545 60 00
Omega Steel Co.Steel supplier · Turkey

Hot-rolled flat

HR coil & sheet, structural and heavy plate, shipbuilding, pressure vessel, wear-resistant, checkered, corten.

Hot-rolled coil & sheetS235JR–S355JR HR black and pickled (HRPO) coil and sheet, 1.5–25 mm.From stockHRPO pickled and oiled steelHot-rolled pickled & oiled (HRP) coil and sheet 1.35–6.0 mm, S235JR / DD11 substrate, scale-free for forming and painting; from stock.From stockDD11 forming steelEN 10111 DD11 (1.0332, ex StW 22) — hot-rolled bending and forming sheet, 1.5–6 mm, black or pickled, from stock.From stockDD12 forming steelEN 10111 DD12 (1.0398, ex StW 23) — hot-rolled drawing-quality sheet, yield 170–320 MPa, A80 ≥ 30 %; 1.5–6 mm to order.From stockDD13 forming steelEN 10111 DD13 (1.0335, ex StW 24) — hot-rolled deep-drawing sheet, yield 170–310 MPa, A80 ≥ 33 %; 1.5–6 mm HRPO from stock.From stockDD14 forming steelEN 10111 DD14 (1.0389, ex StW 24 special) — hot-rolled extra-deep-drawing sheet, yield 170–290 MPa, A80 ≥ 36 %; 1.5–6 mm to order.From stockS235JR plateEN 10025-2 structural plate, 3–100 mm, cut to size.From stockST37 steel plateDIN 17100 ST37-2 — today certified as S235JR; 1.5–20 mm from stock.From stockS275JR plateEN 10025-2 structural plate for welded frames.From stockST44 steel plateDIN 17100 ST44-2 — certified as S275JR; 3–40 mm, the step between ST37 and ST52.From stockS355JR / J0 / J2 plateHigher-strength structural plate with impact-tested variants.From stockST52 steel plateDIN 17100 ST52-3 — certified as S355J2 (or S355JR); 3–100 mm, the high-strength standard.From stockS355JR steel plateEN 10025-2 S355JR (1.0045), 355 MPa, +20 °C impact; 6–20 mm stock.From stockS355J0 steel plateEN 10025-2 S355J0 (1.0553), 27 J at 0 °C — the ST52-3 U grade; 5–80 mm to order.From stockS355J2 steel plateEN 10025-2 S355J2 (1.0577), −20 °C impact, fully killed — the ST52-3 N grade; 6–30 mm stock, 3–150 mm to order.From stockS355J2+N steel plateS355J2 delivered normalised — fine grain, uniform through thickness; 8–150 mm to order.From stockS355K2 steel plateEN 10025-2 S355K2 (1.0596), 40 J at −20 °C — for dynamic loads and cold regions; 8–100 mm to order.From stockS355NL steel plateEN 10025-3 S355NL (1.0546) — normalised fine-grain plate, 27 J at −50 °C; 8–100 mm imported to order.From stockS355ML steel plateEN 10025-4 S355ML (1.8834) — thermomechanical fine-grain plate, 27 J at −50 °C, low CEV; 6–80 mm to order.From stockS355MC steelEN 10149-2 S355MC (1.0976) — thermomechanical cold-forming coil and sheet, 2–12 mm.From stockS460MC steelEN 10149-2 S460MC (1.0982) — 460 MPa cold-forming strip, 2–12 mm to order.From stockS500MC steelEN 10149-2 S500MC (1.0984) — 500 MPa cold-forming strip for tippers, booms and chassis, 2–12 mm.From stockS700MC steelEN 10149-2 S700MC (1.8974) — 700 MPa ultra-high-strength cold-forming strip, 3–12 mm.From stockWear-resistant plate AR400–AR500Abrasion-resistant and S690QL high-yield plate.From stockAR400 wear plate400 HB abrasion-resistant plate 6–40 mm — the bendable, weldable all-rounder for buckets, chutes and liners.From stockAR450 wear plate450 HB abrasion-resistant plate 6–30 mm — more wear life than AR400, still formable; the tipper-body grade.From stockAR500 wear plate500 HB abrasion-resistant plate 6–40 mm for liners and fixed wear parts under severe sliding abrasion.From stockS690QL steel plateEN 10025-6 quenched and tempered high-strength structural plate, 690 MPa yield, 6–60 mm, −40 °C impact.From stockHeavy plate & slab20–200 mm plate for machinery and shipbuilding bases.From stockShipbuilding plate Grade A–AH36Class-approved hull plate.From stockGrade A ship plateOrdinary-strength shipbuilding plate, 235 MPa yield, class-certified (LR, BV, DNV, ABS, RINA, TL), 5–50 mm.From stockGrade B ship plateOrdinary-strength hull plate with 27 J impact at 0 °C, for thicker shell and deck plates; class-certified, 6–50 mm.From stockGrade D ship plateNormal-strength hull steel (235 MPa) with 27 J at −20 °C — normalised or TM, for thick and critical mild-steel plates; 8–60 mm.From stockGrade E ship plateNormal-strength hull steel (235 MPa) with 27 J at −40 °C, normalised — ice class, Arctic and the most critical mild-steel plates; 10–60 mm.From stockAH32 steel plateHigher-strength hull plate at 315 MPa yield, 31 J at 0 °C — the lighter alternative to Grade A, class-certified 6–80 mm.From stockDH32 steel plate315 MPa hull plate with 31 J at −20 °C, normalised or TM — thick and critical H32 plates, ice-class hulls; 8–80 mm.From stockEH32 steel plate315 MPa hull and offshore plate with 31 J at −40 °C, normalised or TM — ice class, Arctic and offshore; 10–80 mm.From stockAH36 steel plateHigher-strength shipbuilding plate, 355 MPa yield, 34 J at 0 °C, class-certified, 6–60 mm.From stockDH36 steel plateHigher-strength hull plate, 355 MPa yield with 34 J at −20 °C, for thick and critical plates; class-certified, 8–80 mm.From stockEH36 steel plateHigher-strength hull plate, 355 MPa yield with 34 J at −40 °C, normalised or TM, for the most critical zones; 10–100 mm.From stockPressure vessel plate P235GH–P355GH, 16Mo3EN 10028-2 boiler and vessel plate.From stockP235GH steel plateEN 10028-2 P235GH (1.0345) — low-pressure boiler and hot-water plate, 3–60 mm to order.From stockP265GH steel plateEN 10028-2 P265GH (1.0425) — the standard boiler and pressure-vessel plate; 6–20 mm limited stock, 3–100 mm to order.From stockP295GH steel plateEN 10028-2 P295GH (1.0481, ex 17Mn4) — 295 MPa pressure-vessel plate, 6–100 mm to order.From stockP355GH steel plateEN 10028-2 P355GH (1.0473, ex 19Mn6) — the strongest GH boiler plate; 6–150 mm to order.From stockP355NH steel plateEN 10028-3 P355NH (1.0565) — normalised fine-grain pressure-vessel plate, −20 °C; 6–100 mm to order.From stockP355NL1 steel plateEN 10028-3 P355NL1 (1.0566) — normalised fine-grain pressure plate for −40 °C: LPG spheres, refrigerated gas, cold-climate vessels; 6–100 mm.From stockP460NH steel plateEN 10028-3 P460NH (1.8935) — 460 MPa normalised fine-grain pressure plate for thinner, lighter high-pressure vessels; 8–80 mm.From stock16Mo3 steel plateEN 10028-2 16Mo3 (1.5415, ex 15Mo3) — 0.3 % Mo creep-resisting boiler plate to 500 °C; 6–100 mm imported to order.From stockASTM A516 Grade 70 plateASME SA-516 Gr. 70 pressure-vessel plate for U-stamp projects; Gr. 60 / 65 also; 6–100 mm to order.From stockASTM A572 Grade 50 plateHSLA structural plate, 345 MPa (50 ksi) — the ASTM twin of S355; 6–100 mm to order.From stockASTM A36 steel plateThe ASTM carbon structural plate, 250 MPa (36 ksi) — S235JR/S275JR equivalent; 6–100 mm to order.From stockCorten weathering steel S355J2WPEN 10025-5 weathering plate and sheet for façades and structures.From stockS355J2WP corten sheetEN 10025-5 phosphorus-alloyed weathering steel (Corten A class), 1–10 mm sheet for façades, art and landscaping.From stockS355J0WP corten sheetEN 10025-5 weathering steel with 0 °C impact — the economical Corten A grade for cladding, landscaping and art, 1–10 mm.From stockCheckered plateTear-drop and five-bar floor plate, 3–12 mm.From stockPerforated & expanded metalRound, square and slotted perforations punched to order; expanded mesh.Manufactured in Dilovası

Coil, sheet or plate: the same steel in three forms

Everything in this family comes off a hot strip mill or a plate mill, and the form decides the tolerance and the price. Coil is the cheapest way to buy steel and the right form for anyone with a decoiler or a tube mill. Cut sheet is coil processed to length. Plate is rolled individually, usually above 8–10 mm, with its own flatness and thickness tolerances to EN 10029.

The same grade costs less as coil than as plate, and the gap widens with thickness. If the part can be cut from coil, cutting from coil is almost always cheaper.

Grade families and what each is bought for

S235 / S275 / S355 are the structural grades — the number is the guaranteed yield in MPa and S355 is the working default for exported structure. The letter suffix is the impact requirement: JR at +20 °C, J0 at 0 °C, J2 at −20 °C, and the low-temperature grades below that.

P235GH to P355GH, 16Mo3 and the NH/NL series are pressure-vessel grades with elevated-temperature properties. S355MC to S700MC are thermomechanically rolled for cold forming at high strength. AR400 to AR500 are through-hardened wear plate. Ship grades carry classification society approval. Picking across families rather than within one is the expensive mistake: a wear plate is not a structural plate, and neither is a boiler plate.

Surface: black, pickled or descaled

Hot-rolled steel leaves the mill with mill scale — a hard blue-black oxide that flakes when the sheet is bent and scores forming tooling. Black is fine where the part is blasted, galvanized or welded and painted afterwards.

Pickled and oiled (HRPO) has the scale removed in acid and a light oil applied. It is what a roll-former, a tube mill or a press will accept, and it is the right specification for anything that will be formed or painted directly. The pickling charge is small against the tooling it saves.

Everything in hot-rolled flat at a glance

Hot-rolled flat — size range, governing standard and availability
ProductRangeStandardAvailability
Hot-rolled coil & sheetS235JR · S275JR · S355J2EN 10204 3.1From stock
HRPO pickled and oiled steel1.35–6.0 mm stockS235JR · DD11–DD14From stock
DD11 forming steel1.0332Yield 170–340 MPaFrom stock
DD12 forming steel1.0398Yield 170–320 MPaFrom stock
DD13 forming steel1.0335Yield 170–310 MPaFrom stock
DD14 forming steel1.0389Yield 170–290 MPaFrom stock
S235JR plate (MS plate)1.0038S235JR · EN 10025-2From stock
ST37 steel plate= S235JR (1.0038)EN 10204 3.1From stock
S275JR plate1.0044S275JR · EN 10025-2From stock
ST44 steel plate= S275JR (1.0044)EN 10204 3.1From stock
S355JR / J0 / J2 plate1.0045 / 1.0553 / 1.0577S355JR · J0 · J2+NFrom stock
ST52 steel plate= S355J2 / S355JREN 10204 3.1 / 3.2From stock
S355JR steel plate1.0045Yield ≥ 355 MPaFrom stock
S355J0 steel plate1.0553Yield ≥ 355 MPaFrom stock
S355J2 steel plate1.0577Yield ≥ 355 MPaFrom stock
S355J2+N steel plateNormalised (+N)Yield ≥ 355 MPaFrom stock
S355K2 steel plate1.0596Yield ≥ 355 MPaFrom stock
S355NL steel plate1.0546Yield ≥ 355 MPaFrom stock
S355ML steel plate1.8834Yield ≥ 355 MPaFrom stock
S355MC steel1.0976Yield ≥ 355 MPaFrom stock
S460MC steel1.0982Yield ≥ 460 MPaFrom stock
S500MC steel1.0984Yield ≥ 500 MPaFrom stock
S700MC steel1.8974Yield ≥ 700 MPaFrom stock
Wear-resistant plate AR400–AR500 & S690QL400 · 450 · 500 HBS690QL EN 10025-6From stock
AR400 wear plate360–440 HB6–40 mmFrom stock
AR450 wear plate420–475 HB6–30 mmFrom stock
AR500 wear plate470–530 HB6–40 mmFrom stock
S690QL steel plate1.8928 · EN 10025-61.8928 · EN 10025-6From stock
Heavy plate & slab25 – 200 mmS235JR · S355J2+N · K2+NFrom stock
Shipbuilding plate Grade A–AH36Grade A · B · D · EAH36 · DH36 · EH36From stock
Grade A ship plateYield ≥ 235 MPaImpact at +20 °CFrom stock
Grade B ship plateYield ≥ 235 MPa27 J at 0 °CFrom stock
Grade D ship plateYield ≥ 235 MPa27 J at −20 °CFrom stock
Grade E ship plateYield ≥ 235 MPa27 J at −40 °CFrom stock
AH32 steel plateYield ≥ 315 MPa31 J at 0 °CFrom stock
DH32 steel plateYield ≥ 315 MPa31 J at −20 °CFrom stock
EH32 steel plateYield ≥ 315 MPa31 J at −40 °CFrom stock
AH36 steel plateYield ≥ 355 MPa34 J at 0 °CFrom stock
DH36 steel plateYield ≥ 355 MPa34 J at −20 °CFrom stock
EH36 steel plateYield ≥ 355 MPa34 J at −40 °CFrom stock
Pressure vessel plate P235GH–P355GH, 16Mo3P235GH – P355GH · 16Mo3EN 10028-2 · PEDFrom stock
P235GH steel plate1.0345Yield ≥ 235 MPaFrom stock
P265GH steel plate1.0425Yield ≥ 265 MPaFrom stock
P295GH steel plate1.0481Yield ≥ 295 MPaFrom stock
P355GH steel plate1.0473Yield ≥ 355 MPaFrom stock
P355NH steel plate1.0565Yield ≥ 355 MPaFrom stock
P355NL1 steel plate1.0566Yield ≥ 355 MPaFrom stock
P460NH steel plate1.8935Yield ≥ 460 MPaFrom stock
16Mo3 steel plate1.5415Mo 0.25–0.35 %From stock
ASTM A516 Grade 70 plateSA-516 Gr. 70Yield ≥ 260 MPa (38 ksi)From stock
ASTM A572 Grade 50 plateYield ≥ 345 MPa (50 ksi)Rm ≥ 450 MPaFrom stock
ASTM A36 steel plateYield ≥ 250 MPa (36 ksi)Rm 400–550 MPaFrom stock
Corten weathering steel S355J2WPS355J2WP · S355J0WPA588 / A242 equivalentFrom stock
S355J2WP corten sheet1.8946 · EN 10025-51.8946 · EN 10025-5From stock
S355J0WP corten sheet1.8945 · EN 10025-51.8945 · EN 10025-5From stock
Chequered (checker) plate2/3 – 10/11 mm1 000 – 1 500 mm wideFrom stock
Perforated sheet & expanded metalHoles 1 – 50 mm · R Q LR H0.5 – 6 mm thickMade in our plant

Ranges are the stocked or rolled envelope, not a tolerance. The product page carries the full size table, weights and the governing standard in full.

Frequently asked questions

What is the difference between S235 and S355?

The guaranteed yield strength: 235 MPa against 355 MPa. S355 lets a designer use a lighter section for the same load, which usually more than repays the modest price difference — it is the working default for exported structural steel.

What do JR, J0 and J2 mean?

The temperature at which the steel must pass a 27 J Charpy impact test: JR at +20 °C, J0 at 0 °C and J2 at −20 °C. Colder service or thicker sections need the lower-temperature grade; the chemistry is otherwise close.

Should I order black or pickled steel?

Pickled and oiled if the part will be formed, roll-formed, tube-welded or painted directly, because mill scale cracks off and damages tooling. Black where the part is blasted, galvanized or welded and painted afterwards.

What thickness separates sheet from plate?

There is no single boundary, but in practice material up to about 8–10 mm is handled as coil and sheet, and above that as plate rolled individually with EN 10029 tolerances. Some grades exist in only one form.

How is plate weight calculated?

Length in metres × width in metres × thickness in millimetres × 7.85 gives kilograms. A 2,000 × 1,000 × 10 mm plate is 157 kg. Invoicing is on theoretical weight unless the contract says otherwise.

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