Spiral steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the oute.
thick wall steel pipe
thick wall steel pipe
Size: OD: 50-299mm WT:2-50mm
Material: 20#, 45#, 16Mn, 25Mn, 27Si Mn
Standard: GB/T 3639, DIN2391, EN10305-1, EN10305-2
Cold drawn seamless high precision steel tube for hydraulic cylinders
The specification and precision of the hydraulic cylinders
cold rolled thick wall steel pipe
Featured Pipes
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Tubes for cylinder liners |
Tubes for auto Machinery |
Cold drawn alloy steel tubes |
Honed tubes |
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Thin-walled, High precision, Small allowance for |
High precision, High performance |
High precision, High performance |
High precision, Small allowance for honing |
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Steel Grade |
T.S. Mpa |
Y.S. Mpa |
Elongation % |
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4140 |
≥883 |
≥704 |
≥15 |
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4140 |
≥1080 |
≥930 |
≥12 |
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Size (mm) |
Tolerance (mm) |
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OD50 OD100 OD160 |
±0.05 ±0.10 ±0.15 |
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ID80 ID120 ID150 |
±0.05 ±0.08 ±0.10 |
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Product Name |
Executive Standard |
Specification Range (OD * WT) |
Steel Kind / Steel Grade |
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German Standards |
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Cold drawn precision seamless steel tube |
DIN2391/EN10305-1 |
16-190mm*1-18 mm |
St35/ St45/ St52 (E235/E255/E355) |
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Precision cold drawn welded steel tube |
DIN2393/EN10305-2 |
16-190 mm *1-12 mm |
St34.2/ St37.2/ St44.2/ St52.3 (E235/E355) |
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Seamless steel tubes for elevated temperature |
DIN17175 |
16-190 mm *1-18 mm |
St35.8/ St45.8/ 17 Mn4 |
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American Standards |
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Seamless carbon steel tubes for high temperature |
ASTM A106 |
0.6-7.48in.*0.039-0.708in. |
A/B/C |
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Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes |
ASTM A179 |
1/2-3 in. |
Low carbon steel |
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Seamless high-pressure carbon steel boiler tubes |
ASTM A192 |
1/2-7 in.* 0.085-1.000in. |
Low carbon steel |
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Seamless carbon and alloy steel for mechanical tubes |
ASTM A519 |
0.6-7.48in.*0.039-0.708in. |
Carbon steel / alloy steel |
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Electric resistance welded carbon and alloy steel mechanical cold drawn tubes |
ASTM A513-5 |
0.6-7.48in.*0.039-0.47in. |
Carbon steel / alloy steel |
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Japanese Standards |
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Seamless steel tube for boiler and heat exchanger |
JIS G 3461 |
12.7-76.2mm |
STB35/STB52/STB42 |
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Carbon steel tubes for machine structural purpose |
JIS G 3445 |
16-190mm*1-18mm |
STKM11A/STKM12A /STKM12B/STKM12C /STKM13B/STKM13C |
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British Standards |
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Seamless and welded steel tubes for auto mechanical and general engineer purpose |
BS6323 |
16-190mm*1-18mm |
CFS6/CFS7 CFS8/CFS3 CFS4/CFS5 |
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Seamless steel tube for boiler and superheater |
BS3059 |
16-190mm*1-18mm |
CFS320/CFS360 /CFS410 |
Large Diameter Thick Wall Steel Pipe
ASTM, API ,ISO
OD:168-426mm(6"-16 3/4")
WT:10-80mm
Large diameter high pressure thick-walled seamless steel pipes are used in power petrochemical project and construction project
Grade and Chemical Composition
|
Grade |
C≤ |
Mn |
P≤ |
S≤ |
Si≥ |
Cr≤ |
Cu≤ |
Mo≤ |
Ni≤ |
V≤ |
|
A |
0.25 |
0.27-0.93 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
|
B |
0.30 |
0.29-1.06 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
|
C |
0.35 |
0.29-1.06 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
/Mechanical Properties
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A |
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A |
≥330 |
≥205 |
20 |
Annealed |
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B |
≥415 |
≥240 |
20 |
Annealed |
|
C |
≥485 |
≥275 |
20 |
Annealed |
large diameter thick wall steel pipe
3 Comments
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