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Hot rolled strip for cold forming


The product is characteristic of excellent weldability, and suitable for cold forming, welding, riveting, hinging and general structure purpose.

Classification:

Keyword:

Hot rolled strip for cold forming

Details Introduction

1. Application and Features

The product is characteristic of excellent weldability, and suitable for cold forming, welding, riveting, hinging and general structure purpose.

2. Grades and Standards

Grades:SPHC, SPHD, SPHE, DD11(StW22), DD12(StW23), DD13(StW24)

Standard:JIS 3131, DIN 1614, EN 10111

3. Technical Delivery Conditions

Product specifications

Thickness: 1.8-12.7(mm), 1.2-12.7(mm)

Width:850-1520(mm), 850-1650(mm)

Delivery conditions

Delivered in hot rolled state.

4. Chemical Composition (Cast analysis) wt%

Grades

C

Mn

S

P

SI

Als

SPHC

≤0.15

≤0.60

≤0.020

≤0.025

≤0.050

≥0.010

SPHD

≤0.10

≤0.50

≤0.020

≤0.025

≤0.030

≥0.015

SPHE

≤0.08

≤0.50

≤0.020

≤0.025

≤0.030

≥0.015

DD11(StW22)

≤0.12

≤0.60

≤0.020

≤0.025

≤0.030

≥0.010

DD12(StW23)

≤0.10

≤0.45

≤0.020

≤0.025

≤0.030

≥0.015

DD13(StW24)

≤0.08

≤0.40

≤0.015

≤0.020

≤0.030

≥0.015

5. Mechanical Properties

Grades

R eL /MPa

A%

180°Bend Test

Bend Mandrel Diameter

thickness

<1.6

1.6 -<2.0

2.0-<2.5

2.5-<3.2

3.2-<4.0

≥4.0

<3.2

≥3.2

SPHC

≥270

≥27

≥29

≥30

≥31

≥32

≥32

0a

1a

SPHD

≥270

≥30

≥32

≥33

≥35

≥37

≥39

0a

SPHE

≥270

≥31

≥33

≥35

≥37

≥39

≥41

0a

 

Grades

ReH/MPa

 

R m MPa

 

A%

 

Bend Test

Bend Mandrel Diameter

L 0 =80mm b=20mm

0 =5.65√S0

a<2.0

a=2.0-8.0

La=1.5-2.0

a=2.0-3.0

a=3.0-8.0

DD11

(StW22)

170-360

170-340

≤440

≥23

≥24

≥28

2a

DD12

(StW23)

170-340

170-320

≤420

≥25

≥26

≥30

0a

DD13

(StW24)

170-330

170-310

≤400

≥28

≥29

≥33

0a

remark

1. The tensile and bend testing values specified in table are applicable to transverse samples.

2. The sample width b in bend test should be over 20mm and equal to 20mm in arbitration.

3. Take Rp 0.2  in case of indistinct yielding.

4. a= sample thickness(mm).

 

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