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Tube for high-pressure chemical fertilizer equipments

 

●Standard: GB6479 China National Standard

● Usage: For manufacturing of high-pressure chemical fertilizer equipments and refineries.

● Grade and Chemical composition(%)

Grade

C Si

Mn

 Cr

Mo

V

W

Nb

Ni

P

S

max

SAE1010

0.07-0.14 0.17-0.37 0.35-0.65 -- -- -- -- -- -- 0.030 0.030

SAE1020

 0.17-0.24 0.17-0.37 0.35-0.65 -- -- -- -- -- -- 0.030 0.030
St52 0.12-0.20 0.20-0.60 1.20-1.60 0.030 0.030
15MnV 0.12-0.18 0.20-0.60 1.20-1.60 -- -- 0.04-0.12 -- -- -- 0.030 0.030
12CrMo 0.08-0.15 0.17-0.37 0.40-0.70 0.40-0.70 0.40-0.55 0.030 0.030
15CrMo 0.12-0.18 0.17-0.37 0.40-0.70 0.80-1.10 0.40-0.55 -- -- -- -- 0.030 0.030
1Cr5Mo ≤0.15 ≤0.50 ≤0.6 4.00-6.00 0.45-0.60 -- -- -- ≤0.6 0.030 0.030
12Cr2Mo 0.08-0.15 ≤0.50 0.40-0.70 2.00-2.50 0.90-1.20 0.030 0.030

● Dimension Tolerances

Pipe Category

Pipe Sizes (mm)

Tolerances

Standard Higher

Hot rolled

 OD ≤159 ±1%

Min: ±0.50mm

±0.75%

Min: ±0.3mm

>159 ±1.0% ±0.90%
WT ≤20 +15%

-10%

±10%
>20 +12.5%

-10%

±10%

Cold drawn

 OD 14-30 ±0.20mm ±0.15mm
>30-50 ±0.30mm ±0.25mm
>50 ±0.75% ±0.6%
WT ≤3.0 +12.5%

-10%

±10%
>3.0 ±10% ±0.75%

● Mechanical Properties

Grade

Mechanical  Properties

Rm Mpa Tensile Strength

Rel MPa Yield Strenght

A% Elongation

ψ, %

Aku2 J Impact

Min

SAE1010

 335-490 205 24 -- --

SAE1020

 410-550 245 24 -- 39
St52 490-670 320 21 -- 47
15MnV 510-690 350 19 --

47
12CrMo 410-560 205 21 -- 55

15CrMo

 440-640 235 21 -- 47
12Cr2Mo 450-600 280 20 -- 38
1Cr5Mo 390-590 195 22 -- 94

● Size

 D\S

2

2.5

3

3.5

4

4.5

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

16

17

18

19

20

21

22

25

27

28

30

32

34

35

38

40

42

45

48

50

51

54

57

60

63

65

68

70

73

76

77

80

83

85

89

95

102

108

114

 

 

 



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Zhang Jia Gang, China (Manage|Mail)