DIN17175 Carbon / Alloy Steel seamless boiler Tube Of Heat - Resistant Steels 6 - 16m

CHEMICAL COMPOSITION (CAST ANALYSIS) IN%

Steel Grade

C

Si

Mn

P

S

Cr

Mo

V

St35.8

1.0305

≤0.17

0.1-0.35

0.40-0.80

0.040

0.040

St45.8

1.0405

≤0.21

0.1-0.35

0.40-1.20

0.040

0.040

17Mn4

1.0481

0.14-0.20

0.20-0.40

0.90-1.20

0.040

0.040

≤0.30

19Mn5

1.0482

0.17-0.22

0.30-0.60

1.00-1.30

0.040

0.040

≤0.30

15Mo3

1.5415

0.12-0.20

0.10-0.35

0.40-0.80

0.035

0.035

0.25-0.35

13CrMo44

1.7335

0.10-0.18

0.10-0.35

0.40-0.70

0.035

0.035

0.70-1.10

0.45-0.65

10CrMo910

1.7380

0.08-0.15

≤0.50

0.40-0.70

0.035

0.035

2.00-2.50

0.90-1.20

14MoV63

1.7715

0.10-0.18

0.10-0.35

0.40-0.70

0.035

0.035

0.30-0.50

0.50-0.70

0.22-0.32

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STEEL GRADE

Tensile Strength

σb(Mpa)

N/mm2

Yield Strength σs(Mpa)

(WT in mm)

Elongation      δ(%)

(L=5do)

IMPACT

(DVM—TEST SAMPLE)

≤16

＞16≤40

＞40≤60

I

T

T

(MIN) N/mm2

% (MIN)