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GB 5310 20G 25MnG Seamless Alloy Steel High Pressure Pipe / tubes OD WT Customized
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GB 5310 20G 25MnG Seamless Alloy Steel High Pressure Pipe / tubes OD WT Customized

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GB 5310 20G 25MnG SEAMLESS ALLOY STEEL HIGH PRESSURE PIPE FOR BOILER

 

 

Specifications:

 

Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling

Ends: BE/PE, ends caps

Marking: as per requirement

Size:(mm) 

As per standard or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length

Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement

 

 

CHEMICAL COMPOSITION (%):

 

Grade

Chemical Composition

C

Si

Mn

P

S

Cr

Mo

20G

0.17~0.23

0.17~0.37

0.35~0.65

≤0.025

≤0.015

−

−

20MnG

0.17~0.23

0.17~0.37

0.70~1.00

≤0.025

≤0.015

−

−

25MnG

0.22~0.27

0.17~0.37

0.70~1.00

≤0.025

≤0.015

−

−

15MoG

0.12~0.20

0.17~0.37

0.40~0.80

≤0.025

≤0.015

−

0.25~0.35

20MoG

0.15~0.25

  0.17~0.37

0.40~0.80

≤0.025

≤0.015

−

0.44~0.65

12CrMoG

0.08~0.15

0.17~0.37

0.40~0.70

≤0.025

≤0.015

0.40~0.70

0.40~0.55

 

 

MECHNICAL PROPERTIES (Minimum Values) :

 

Grade

Tensile Strength (MPa)

Yield Strength(MPa)

Elongation(%)

20G

410~550

≥245

≥24

20MnG

415~560

≥240

≥22

25MnG

485~640

≥275

≥20

15MoG

450~600

≥270

≥22

20MoG

415~665

≥220

≥22

12CrMoG

410~560

≥205

≥21

 

 

DIMENSION TOLERANCE:

 

Processing

Pipe Sizes (mm)

Tolerances

Cold Drawn

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Mr. Brenda
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CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.
INDUSTRIAL ZONE, ZOUQU TOWN, WUJIN DIST., Changzhou, Jiangsu, China (Mainland)
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