KB Steel

A finished steel product such as sheet or strip which has been wound or coiled after rolling. A flat rolled product over 12 inches in width and of less thickness than plate.

Hot rolled sheets are produced at elevated temperatures on rolling mills and generates a material that is resistant to work hardening and exhibits reduced levels of deformation residual stress. Material rolled in the hot rolled condition can require more extensive leveling practices, such as temper passing or stretcher leveling downstream to eliminate coil memory. In addition, hot-rolling may leave surface imperfections such as scale or pits which require additional finishing for a smooth surface.

Products manufactured using hot rolled sheet include structural parts such as I-beams and H-beams, rails, stampings, automotive and equipment components.

SS400 Steel Coil are used in Construction of Bridges, Highway Construction and Other Engineering construction.

Hot Rolled Steel Coil are mainly used in Construction of Bridges, Highway Construction and Other Engineering construction.

Common uses of A 36: Shim plates, Gusset plates, bridge plates, bearing plates, robot bases, column base plates, press parallels, press platens, tooling plates, machine plates, machine frames and pedestals, steel table tops, base plates, mold & die, machine mounting plates, etc.

:: Specifications of Hot Rolled Flat Products Grades

Steel Quality

Steel Grade

Chemical Composition (Cast Analysis ) %

Mechanical Properties of Finished of Finished Products

Referene Standard

Yield Stress Min
(N/mm2)

Tensile Strength
(N/mm2)

Elongation %

180 Band Mandrel Dla

C Max.

Mn Max.

Si Max.

P Max.

S Max.

Al Min.

Nb Min.

V Min.

Ti Min.

e<3 mm

3<e<6 mm

e>6 mm

e<3 mm

3<e<6 mm

e>6 mm

Commercial

HR-1

0.15

0.60

–

0.05

–

ISO 3573-76

Drawing

HR-2

0.12

0.50

–

0.04

–

430 Max

–

-do-

HR-3

0.10

0.45

–

0.03

–

370 Max

–

-do-

HR-4

0.08

0.45

–

0.03

–

390 Max

–

-do-

SPHC

–

0.05

–

270 Min

0.5a

–

JIS G 3131-91

SPHD

–

0.04

–

270 Min

–

– do-

Structural

HR-235

0.18

–

0.05

–

235

330 Min

–

ISO 4995-78

HR-275

0.21

–

0.05

–

275

370 Min

–

-do-

HR-355

0.22

1.60

0.55

0.05

–

355

450 Min

–

-do-

A283 C

–

0.04

0.05

–

205

380-450

–

ASTM A 263

A285 C

0.28

0.90

–

0.035

0.04

–

205

380-515

–

ASTM A-285

A36

0.25

0.80-1.20

–

0.04

–

250

400-550

–

ASTM A-36

ST-37-2

0.17

–

0.05

–

235

340-470

–

1.5a

DIN 17100

ST-37-2CU3

0.17

–

0.05

–

335

510-680

–

1.5a

-do-

ST-52-3

0.20

1.60

0.65

0.04

–

355

490-830

–

2.5a

-do-

Wleded Gas Cylinder

SG-265/SG-26

0.20

0.30 Min

–

0.04

–

255

400 Min

–

JIS G 3116-90/77

Ship Building

LLOYED Grade A

.021

2.5 x c%

0.50

0.04

–

235

400-490

–

LLOYD

Line Pipe

HATI

0.10

0.50

0.35

0.04

–

275 Min

0.5a

JIS G 3132-83

HATILS

0.10

0.50

0.04

0.02

–

275 Min

0.5a

-do-

HRT2

0.18

0.60

0.35

0.04

–

340 Min

1.5a

-do-

SLA

0.21

0.90

–

0.04

0.05

–

207

331 Min

–

API-SL

SLALS

0.21

0.90

–

0.04

0.05

0.02

–

207

331 Min

–

-do-

SLB

0.26

1.15

–

0.04

0.05

–

241

413 Min

–

-do-

SLBLS

0.26

1.15

0.07

0.04

0.05

0.02

–

241

413 Min

–

-do-

X-42

0.28

1.25

–

0.04

0.05

–

289

413 Min

–

-do-

X-46

0.30

1.35

–

0.04

0.05

–

317

434 Min

–

-do-

X-52

0.30

1.35

–

0.04

0.05

–

358

455 Min

–

-do-

X-56

0.26

1.35

–

0.04

0.05

–

0.005

386

489 Min

–

-do-

X-60

0.26

1.35

–

0.04

0.05

0.005

413

417 Min

–

-do-

X-65

0.26

1.40

–

0.04

0.05

–

0.005

448

530 Min

–

-do-

X-70

0.29

1.60

–

0.04

0.05

–

482

565 Min

–

-do-

Automobile

BWL-09

0.13

0.50

0.06

0.05

0.07

–

200

340 Min

–

BWL-17

0.20

0.60

0.05

0.07

–

200

340 Min

–

SAPH-440

–

0.04

–

295

440 Min

–

JIS G 3113-91

Hot Rolled Coils & Sheet

Ms Products

Coated products

Structural Steel Products

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