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Straight Bars for Concrete Reinforcement

SNI Product specification

  These specifications are described for reinforcement steel as per SNI 07-2052-2017 and equivalent to JIS G 3112 and ASTM A615

Plain Rounds (in mm)

: 8,10,12,14,16,19,22,25,28 and 32

Deformed Bars (in mm)

: 8,10,13,16,19,22,25,29 and 32

 

Steel  Grade

Tensile Test

Bend Test

Ratio TS/YS

Yield Strength (YS)

Tensile  Strength (TS)

Elongation in 200 mm, Min.

Rounded Corner

Arch Diameter

MPa

MPa

%

 

mm

BjTP 280

Min. 280

Min. 350

11 (d ≤ 10 mm)

180°

3.5d (d ≤ 16 mm)

-

Maks. 405

12 (d ≥12 mm)

180°

5d (d ≥ 19 mm)

BjTS 280

Min. 280

Min. 350

11 (d ≤ 10 mm)

180°

3.5d (d ≤ 16 mm)

Min. 1.25

Maks. 405

12 (d ≥13 mm)

180°

5d (d ≥ 19 mm)

BjTS 420A

Min. 420

Min. 525

9 (d ≤ 19 mm)

180°

3.5d (d ≤ 16 mm )

Maks. 545

8 (22 ≤ d ≤ 25 mm)

180°

5d (19 ≤ d ≤ 25 mm)

 

7 (d ≥ 29 mm)

180°

7d (29 ≤ d ≤ 36 mm)

90°

9d (d > 36 mm)

BjTS 420B

Min. 420

Min. 525

14 (d ≤ 19 mm)

180°

3.5d (d ≤ 16 mm )

Maks. 545

12 (22 ≤ d ≤36 mm)

180°

5d (19 ≤ d ≤ 25 mm)

 

10 (d > 36 mm)

180°

7d (29 ≤ d ≤ 36 mm)

90°

9d (d > 36 mm)

BjTS 520

Min. 520

Min. 650

7 (d ≤ 25 mm)

180°

5d (d ≤ 25 mm)

Maks. 645

6 (d ≥ 29 mm)

180°

7d (29 ≤ d ≤ 36 mm)

 

90°

9d (d > 36 mm)

BjTS 550

Min. 550

Min. 687,5

7 (d ≤ 25 mm)

180°

5d (d ≤ 25 mm)

Maks. 675

6 (d ≥ 29 mm)

180°

7d (29 ≤ d ≤ 36 mm)

 

90°

9d (d > 36 mm)

BjTS 700

Min. 700

Min. 805

7 (d ≤ 25 mm)

 

180°

5d (d ≤ 25 mm)

Min. 1.15

Maks. 825

6 (d ≥ 29 mm)

180°

7d (29 ≤ d ≤ 36 mm)

 

90°

9d (d > 36 mm)

 

AS/NZS 4671 Product specification

  These specifications are described for reinforcement steel as per AS/NZS 4671:2001

 

Preferred diameter 300E

: 12,16 mm

 

Preferred diameter 500N

: 12,16,20,24,28,32 mm.

 

Chemical & Mechanical properties as per AS/NZS 4671:2001

         

 

COMPOSITION OF REINFORCING STEELS

 

Type of analysis

Chemical composition, % max.

Carbon equivalent value (Ceq) for standard grades

 

All grades

 

C

P

S

250N

500L

500N

300E

500E

 

Cast analysis

 

0.22

0.050

0.050

0.43

0.39

0.44

0.43

0.49

 

Product analysis

 

0.24

0.055

0.055

0.45

0.41

0.46

0.45

0.51

 

                 

 

 

CHARACTERISTIC MECHANICAL PROPERTIES OF REINFORCING STEELS

 

 

Property

250N

500L

500N

300E

500E

Type of specified value

 

 

(Note 1)

(Note 2)

(Seismic)

(Seismic)

 

 

Yield stress (MPa)       R ek.L

 

 ≥ 250

≥ 500

≥ 500

 ≥ 300

≥ 500

CvL: p = 0.95

 

 

 

R ek.U

-

≤ 750

≤ 650

≤ 380

≤ 600

CvU: p = 0.05

 

 

 

Ratio ,                          Rm/Re

≥ 1.08

≥ 1.03

≥ 1.08

≥ 1.15

≥ 1.15

CvL: p = 0.90

 

 

 

 

-

-

-

≥ 1.50

≥ 1.4 0

CvU: p = 0.10

 

 

 

Uniform elongation

A gt(%)

≥ 5.0

≥ 1.5

≥ 5.0

≥ 15.0

≥ 10.0

CvL: p = 0.90

 

 

 

 

NOTES:

                 

 

1.       Grade 250N may be supplied as plain round reinforcing steel complying with AS 3679.1, except that the tolerance on the diameter and roundness does not apply.

 

 

 

 

2.       For 500L steels, the only requirement for d < 5.0 mm is Rek.L ≥ 500 MPa.

       

 

                         

 

Straight Bars for Concrete Reinforcement

These specifications are described for bar in coil and bars as per SNI 07-2052-2017, SNI-07-0954-2005 and equivalent to JIS G 3112

Plain Rounds (in mm)

: P6,P8,P10, P12 and P14 (polos)

 

Mechanical Properties as per SNI-07-0954-2005

Steel  Grade

Tensile Test

Bend Test

Yield

 Kgf / mm2

Tensile

Kgf / mm2

Elongation

Rounded Corner

Arch Diameter

(N/mm2)

( N/mm2)

(%)

BjTP 24

Minimum 24

Minimum 39

20

1800

3 x d

(235)

(380)

 

 

 

BjTP 30

Minimum 30

Minimum 45

18

1800

3 x d

(295)

(440)

 

Note

1. Bend test results should not be located on the outer side of the arch.

2. 1 Kgf / mm2 = 9.8 N/mm2

 

Mechanical Properties as per SNI 07-2052-2017

Steel  Grade

Tensile Test

Bend Test

Yield

 Kgf / mm2

Tensile

Kgf / mm2

Elongation

Rounded Corner

Arch Diameter

(N/mm2)

( N/mm2)

(%)

 

BjTP 280

Min.    280

Minimum 350

11 (d ≤ 10 mm)

1800

3,5d (d ≤ 16 mm)

 

Max.   405

 12 (d ≥12 mm)

 1800