Standard Baja Struktur JIS G3106

Japan Industry Standard( JIS)

 IS G3106 SM400A

Chemical composition % MAX

C

Si

Mn

P

S

TH(MM)

≤50

>50≤200

0.23

0.25

~

≥2.5xC

0.035

0.035

Mechanical properties  MIN

Yield strength   (N/MM2)

Tensile strength (N/MM2)

Elongation %

TH(MM)

≤16

>16-40

>40-75

>75-100

>100-160

>160-200

≤100

>100-200

≤15

>5-16

>16-50

>40

245

235

215

215

205

195

400~510

400~510

≥23

≥18

≥22

≥24

JIS G3106 SM400C

Chemical composition % MAX

C

Si

Mn

P

S

TH(MM)

≤50

>50≤200

0.18

0.18

0.35

1.4

0.035

0.035

Mechanical properties  MIN

Yield strength   (N/MM2)

Tensile strength (N/MM2)

Elongation %

TH(MM)

≤16

>16-40

>40-75

>75-100

>100-160

>160-200

≤100

>100-200

≤15

>5-16

>16-50

>40

245

235

215

215

-

-

400~510

400~510

≥23

≥18

≥22

≥24

JIS G3106 SM400B

Chemical composition % MAX

C

Si

Mn

P

S

TH(MM)

≤50

>50≤200

0.20

0.22

0.35

0.60-1.40

0.035

0.035

Mechanical properties  MIN

Yield strength   (N/MM2)

Tensile strength (N/MM2)

Elongation %

TH(MM)

≤16

>16-40

>40-75

>75-100

>100-160

>160-200

≤100

>100-200

≤15

>5-16

>16-50

>40

245

235

215

215

205

195

400~510

400~510

≥23

≥18

≥22

≥24

JIS G3106 SM490A

Chemical composition % MAX

C

Si

Mn

P

S

TH(MM)

≤50

>50≤200

0.20

0.22

0.55

1.6

0.035

0.035

Mechanical properties  MIN

Yield strength   (N/MM2)

Tensile strength (N/MM2)

Elongation %

TH(MM)

≤16

>16-40

>40-75

>75-100

>100-160

>160-200

≤100

>100-200

≤15

>5-16

>16-50

>40

325

315

295

295

285

275

490-610

490-610

≥22

≥17

≥21

≥23

JIS G3106 SM490B

Chemical composition % MAX
	C				Si		Mn		P		S
TH(MM)	≤50		>50≤200
	0.18		0.2		0.55		1.6		0.035		0.035
Mechanical properties  MIN
	Yield strength   (N/MM2)						Tensile strength (N/MM2)		Elongation %
TH(MM)	≤16	>16-40	>40-75	>75-100	>100-160	>160-200	≤100	>100-200	≤15	>5-16	>16-50	>40
	325	315	295	295	285	275	490-610	490-610	22	17	21	23

JIS G3106 SM490C

Chemical composition % MAX

C

Si

Mn

P

S

TH(MM)

≤50

>50≤200

0.18

0.18

0.55

1.6

0.035

0.035

Mechanical properties  MIN

Yield strength   (N/MM2)

Tensile strength (N/MM2)

Elongation %

TH(MM)

≤16

>16-40

>40-75

>75-100

>100-160

>160-200

≤100

>100-200

≤15

>5-16

>16-50

>40

325

315

295

295

-

-

490-610

490-610

≥22

≥17

≥21

≥23

JIS G3106 SM490YA

Chemical composition % MAX
	C				Si		Mn		P		S
TH(MM)	≤50		>50≤200
	0.20		0.20		0.55		1.6		0.035		0.035
Mechanical properties  MIN
	Yield strength   (N/MM2)						Tensile strength (N/MM2)		Elongation %
TH(MM)	≤16	>16-40	>40-75	>75-100	>100-160	>160-200	≤100	>100-200	≤15	>5-16	>16-50	>40
	325	355	335	325	-	-	490-610	-	19	15	19	21

JIS G3106 SM490YB

Chemical composition % MAX
	C				Si		Mn		P		S
TH(MM)	≤50		>50≤200
	0.20		0.20		0.55		1.6		0.035		0.035
Mechanical properties  MIN
	Yield strength   (N/MM2)						Tensile strength (N/MM2)		Elongation %
TH(MM)	≤16	>16-40	>40-75	>75-100	>100-160	>160-200	≤100	>100-200	≤15	>5-16	>16-50	>40
	365	355	335	325	-	-	490-610	-	19	15	19	21

JIS G3106 SM520B

Chemical composition % MAX
	C				Si		Mn		P		S
TH(MM)	≤50		>50≤200
	0.20		0.20		0.55		1.6		0.035		0.035
Mechanical properties  MIN
	Yield strength   (N/MM2)						Tensile strength (N/MM2)		Elongation %
TH(MM)	≤16	>16-40	>40-75	>75-100	>100-160	>160-200	≤100	>100-200	≤15	>5-16	>16-50	>40
	365	355	335	325	-	-	520-640	-	19	15	19	21

JIS G3106 SM520C

Chemical composition % MAX
	C				Si		Mn		P		S
TH(MM)	≤50		>50≤200
	0.20		0.20		0.55		1.6		0.035		0.035
Mechanical properties  MIN
	Yield strength   (N/MM2)						Tensile strength (N/MM2)		Elongation %
TH(MM)	≤16	>16-40	>40-75	>75-100	>100-160	>160-200	≤100	>100-200	≤15	>5-16	>16-50	>40
	365	355	335	325	-	-	520-640	-	19	15	19	21

JIS G3106 SM570

Chemical composition % MAX
	C				Si		Mn		P		S
TH(MM)	≤50		>50≤200
	0.18		0.18		0.55		1.6		0.035		0.035
Mechanical properties  MIN
	Yield strength   (N/MM2)						Tensile strength (N/MM2)		Elongation %
TH(MM)	≤16	>16-40	>40-75	>75-100	>100-160	>160-200	≤100	>100-200	≤15	>5-16	>16-50
	460	450	430	420	-	-	570-720	-	19	26	20