Specifications
Description

Low-carbon steel

Mild steels are characterized by low yield strength and high ductility and are especially suited for the produc-tion of complex parts.They are produced as aluminum killed non-lF grades or as IFgrades.
Soft lF grades have an excellent formability and show very low carbon and nitrogen contents and are stabi-lized by the addition of titanium andior niobium.

Geely Volvo standard | Low carbon steel/High Strength IF Steel

Cold rolling

Grade

Chemical composition

C%

Si%

Mn%

P%

S%

Al%

Ti%

CU%

VDA 239-100 CR1

≤0.12

≤0.50

≤0.60

≤0.055

≤0.035

≥0.010

≤0.30

≤0.20

VDA 239-100 CR2

≤0.10

≤0.50

≤0.50

≤0.025

≤0.020

≥0.010

≤0.30

≤0.20

VDA 239-100 CR3

≤0.08

≤0.50

≤0.50

≤0.025

≤0.020

≥0.010

≤0.30

≤0.20

VDA 239-100 CR4

≤0.06

≤0.50

≤0.40

≤0.025

≤0.020

≥0.010

≤0.30

≤0.20

VDA 239-100 CR5

≤0.02

≤0.50

≤0.30

≤0.020

≤0.020

≥0.010

≤0.30

≤0.20

Grade

Mechanical property

YS

TS(MPa)

EL(%)

n

VDA 239-100 CR1

140-300

270-410

≥28

 

VDA 239-100 CR2

140-240

270-370

≥34

≥0.16

VDA 239-100 CR3

140-210

270-350

≥38

≥0.18

VDA 239-100 CR4

140-180

270-330

≥39

≥0.20

VDA 239-100 CR5

110-170

260-330

≥41

≥0.22


Geely Volvo standard | Low carbon steel/High Strength IF Steel

Hot rolling

Grade

Chemical composition

C%

Si%

Mn%

P%

S%

Al%

Ti%

CU%

VDA 239-100 HR0

≤0.13

≤0.50

≤0.60

≤0.035

≤0.030

≥0.015

≤0.30

≤0.20

VDA 239-100 HR2

≤0.10

≤0.50

≤0.50

≤0.025

≤0.030

≥0.015

≤0.30

≤0.20

Grade

Mechanical property

YS

TS(MPa)

EL(%)

n

VDA 239-100 HR0

240-350

310-460

≥22

≥0.12

VDA 239-100 HR2

180-290

270-400

≥30

≥0.16


Geely Volvo standard | Low carbon steel/High Strength IF Steel

High Strength IF Steel

High Strength IF-steels have very low contents of car-bon and nitrogen and are stabilized by the addition oftitanium and/or niobium. As a consequence, thesesteels show a neaily unlimited suitability for storage,Their higher strength is achieved by solid solution hardening with adding manganese, phosphorus and/or silicon formability.
A higher work-hardening, no pronounced yield pointhigh elongations and r-values result in an excellent formability.


Cold rolling​

Grade

Chemical composition

C%

Si%

Mn%

P%

S%

Al%

Ti%

Nb%

CU%

VDA 239-100 CR160IF

≤0.01

≤0.30

≤0.60

≤0.06

≤0.025

≥0.010

≤0.12

≤0.09

≤0.20

VDA 239-100 CR180IF

≤0.01

≤0.30

≤0.70

≤0.06

≤0.025

≥0.010

≤0.12

≤0.09

≤0.20

VDA 239-100 CR210IF

≤0.01

≤0.30

≤0.90

≤0.08

≤0.025

≥0.010

≤0.12

≤0.09

≤0.20

VDA 239-100 CR240IF

≤0.01

≤0.30

≤1.60

≤0.10

≤0.025

≥0.010

≤0.12

≤0.09

≤0.20

Grade

Mechanical property

YS

TS(MPa)

EL(%)

n

VDA 239-100 CR160IF

160-210

280-340

≥38

≥0.20

VDA 239-100 CR180IF

180-240

320-400

≥35

≥0.19

VDA 239-100 CR210IF

210-270

340-420

≥33

≥0.18

VDA 239-100 CR240IF

240-300

360-440

≥31

≥0.17


Related materials supplied

VDA 239-100 CR1
VDA 239-100 CR2
VDA 239-100 CR3
VDA 239-100 CR4
VDA 239-100 CR5
VDA 239-100 HR0
VDA 239-100 HR2
VDA 239-100 CR160IF
VDA 239-100 CR180IF
VDA 239-100 CR210IF
VDA 239-100 CR240IF



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Geely Volvo standard | Low carbon steel/High Strength IF Steel

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Geely Volvo standard | Low carbon steel/High Strength IF Steel
Geely Volvo standard | Low carbon steel/High Strength IF Steel

Hengqiao (Shanghai) International Trading Co., Ltd.

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