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thick wall steel pipe

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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

Tubes for cylinder liners

Tubes for auto Machinery

Cold drawn alloy steel tubes

Honed tubes

 

 

 

 

 

Thin-walled,

High precision,

Small allowance for
processing

 High precision,

High performance

High precision, High performance

 High precision, Small allowance for honing

Steel Grade

T.S.

Mpa

Y.S. Mpa

Elongation

%

4140

≥883

≥704

≥15

4140

≥1080

≥930

≥12

Size (mm)

Tolerance (mm)

OD50

OD100

OD160

±0.05

±0.10

±0.15

ID80

ID120

ID150

±0.05

±0.08

±0.10

 

Product Name

Executive Standard

Specification Range

  (OD * WT)

Steel Kind / Steel Grade

German Standards

Cold drawn precision seamless steel tube

DIN2391/EN10305-1

16-190mm*1-18 mm

St35/ St45/ St52

(E235/E255/E355)

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)

Seamless steel tubes for elevated temperature

DIN17175

16-190 mm *1-18 mm

St35.8/ St45.8/ 17 Mn4

American Standards

Seamless carbon steel tubes for high temperature

ASTM A106

0.6-7.48in.*0.039-0.708in.

A/B/C

Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes

ASTM A179

1/2-3 in.

Low carbon steel

Seamless high-pressure carbon steel boiler tubes

ASTM A192

1/2-7 in.* 0.085-1.000in.

Low carbon steel

Seamless carbon and alloy steel for mechanical tubes

ASTM A519

0.6-7.48in.*0.039-0.708in.

Carbon steel / alloy steel

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

Japanese Standards

Seamless steel tube for boiler and heat exchanger

JIS G 3461

12.7-76.2mm

STB35/STB52/STB42

Carbon steel tubes for machine structural purpose

JIS G 3445

16-190mm*1-18mm

STKM11A/STKM12A

/STKM12B/STKM12C

/STKM13B/STKM13C

British Standards

Seamless and welded steel tubes for auto mechanical and general engineer purpose

BS6323

16-190mm*1-18mm

CFS6/CFS7

CFS8/CFS3

CFS4/CFS5

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

 


Grade


Rm
Mpa Tensile Strength


Mpa
Yield Point

A
Elongation


Delivery Condition

A

≥330

≥205

20

Annealed

B

≥415

≥240

20

Annealed

C

≥485

≥275

20

Annealed

 

large diameter thick wall  steel pipe

thick wall pipe

.

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