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   Si

 Fe

  Cu

 Mn

  Mg

 Cr

  Zn

  Ti

   Zr

1060

0.25

 0.35

0.05

0.03

0.03

---

0.05

0.03

---

1050

0.25

0.40

0.05

0.05

0.05

---

0.05

0.03

---

2A01

0.50

0.50

2.2-3.0

0.20

0.20-0.50

 ---

0.10

0.15

---

2A02

0.30

0.30

2.6-3.2

0.45-0.7

2.0-2.4

---

0.10

0.15

---

2A04

0.30

0.30

3.2-3.7

0.50-0.8

2.1-2.6

---

0.10

0.05-0.40

---

2A06

0.50

0.50

3.8-4.3

0.50-1.0

1.7-2.3

---

0.10

0.03-0.15

---

2A10

0.25

0.20

3.9-4.5

0.30-0.50

0.15-0.30

---

0.10

0.15

---

2A11

0.7

0.7

3.8-4.8

0.40-0.8

0.40-0.8

---

0.30

0.15

---

.2A12

0.50

0.50

3.8-4.9

0.30-0.9

1.2-1.8

---

0.30

0.15

---

2A14

0.6-1.2

0.7

3.9-4.8

0.40-1.0

0.40-0.8

---

0.30

0.15

---

2A16

0.30

0.30

6.0-7.0

0.40-0.8

0.05

---

0.10

0.10-0.20

0.20

2A50

0.7-1.2

0.7

1.8-2.6

0.40-0.8

0.40-0.8

---

0.30

0.15

---

2011

0.40

0.7

5.0-6.0

---

---

---

0.30

---

---

2014

0.50-1.2

0.7

3.9-5.0

0.40-1.2

0.20-0.8

0.10

0.25

0.15

---

2214

0.50-1.2

0.30

3.9-5.0

0.40-1.2

0.20-0.8

0.10

0.25

0.15

---

2017

0.20-0.8

0.7

3.5-4.5