Zita

Giredhi

KemikariCchinzvimbo，%

mwero

Si

Mn

Ni

Sn

Fe

Pb

Zn

Mg

C

S

P

Cu

ZvakakoshaTinNdarira

TQSn0.7-0.02

≤0.1

-

≤0.2

0.4~1.0

≤0.3

≤0.03

-

≤0.1

≤0.03

≤0.01

0.015~0.035

Bhari.

Q/STZ01-2012

Dia./mm

0.03~0.10

>0.1~0.030

>0.30~0.60

>0.60~1.00

>1.00~3.00

>3.00~6.00

Tkushivirira(±)

Ⅰ

0.003

0.004

0.007

0.010

0.015

0.020

Ⅱ

0.004

0.005

0.009

0.015

0.020

0.030

Ⅲ

0.005

0.006

0.010

0.020

0.030

0.040

Giredhi

Nyika

Dia.

mm

1. S.

N/mm2()≥）

Kureba

%()≥）

KurambaμΩ·m

Stsika

TQSn0.7-0.02

M

0.03~0.10

200

15

0.032±0.005

Q/STZ01-2012

>0.10~1.00

200

20

>1.00~3.00

190

25

>3.00~6.00

190

30