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Din Seamless Pipe En 10305 10297 Din2391 Precision Tube - China

price: contact company for price

DIN seamless pipe

EN 10305, EN 10297, DIN2391 Precision Tube, EN 10210,

DIN17175 St35.8, DIN1629 ST52-3

DIN/EN seamless pipes are extensively applied in petroleum,

chemical, power, boiler, and machinery industries. Our

prefect products and preferential price have won us

customers’ trust and consistently favorable comments.

Our products for DIN/EN Standard has been listed as follows:

EN 10305

EN 10297

DIN2391 Precision Tube

EN 10210

DIN17175 St35.8

DIN1629 ST52-3

DIN 1630

Steel Grade: St37.4, St44.4, St52.4

Application: Seamless Circular Tubes of Non. Alloy Steels

With Very High Quality Requirements

Dimension Range: 10.2-660 mm

DIN 2391-1

Steel Grade: St35, St45, St52

Application: Seamless Precision Steel Tubes

Dimension Range: 4-260 mm

DIN 2440

Steel Grade: St33.2

Application: Steel Tubes Medium Weight Suitable for Screwing

Dimension Range: 10.2-165.1 mm

DIN 2441

Steel Grade:St33.2

Application: Steel Tubes Heavy Weight for Suitable for


DIN 2445-1

Steel Grade: St 52.4

Application: Seamless Steel Tubes Subjected to Dynamic

Loading-1 Hot Finished Tubes for Use in Fluid Power Systems,

Rated for Pressures from 100 bar to 500 bar

Dimension Range: 21.3-355.6 mm

DIN 2445.2

Steel Grade: St 37.4

Loading-2 Precision, Tubes for Use in Fluid Power Systems,

Dimension Range: 4.50 mm

DIN 2460

Steel Grade: St35

Application: Steel Pipes for Water Pipelines

Dimension Range: DN80-500

DIN 17175

Steel Grade: St35.8, S05.8, 17Mn4, 19Mn5, 15Mo3, 13CrMo910,

1OCrMo910, 14MoV63, X20CrMoV12l

Application: Seamless Circular Tubes Made From Steels with

Elevated Temperatures

Dimension tolerance

Standard Tolerance

Out side Diameter Wall Thickness Length


DIN 1630 See Table 1 See Table 2 See Table 3

DIN 2391 See Table 4 10% See Table 5

DIN 2440 See Table 6 -12.5%, + A ±1m

DIN 2441 See Table 2 -12.5%, + A ±1m

DIN 17172 SeeTable 7 ≤130 10% Fixed

Length ±500

<130 12.5%

DIN 17173 See Table 1 See Table 2 See Table 3

DIN 17175 See Table 1 See Table 2 See Table 3

DIN 17176 See Table 8 See Table 2 See Table 3

DIN 17179 See Table 1 See Table 2 See Table 3

DIN 28180 Outside

Diameter Class 1 Class 2 Class 3 See Table 9

≤5000 -0, +5

16-30 ±0.08 Not

Applicable ±0.50 <5000

-10000 -0, +10

38 ±0.15 <10000 By


A: The upper Limit is fixed by the permissible weight


Table 1: Permissible Deviation in Outside Diameter in DIN

1630, 17173, 17175, 17179

Outside Diameter – da

mm Pertilisable Deviation in Diameter

Tube Barrel and Tube Ends At Tube ends, Subject to

Particular agreement

<100 td> ±1% da; (values up to ±0.5mm

are permitted) ±0.4mm

100≤da<200 td> ±1% da ±0.5% da.

≥200 ±1% da ±0.6% da

Table 2: Permissible Deviation in Wall Thickness in DIN

1630, 17173, 17175, 17176, 17179

Permissible Deviation in Wall Thickness for Outside

Diameter, da. and Wall Thicknesses, s

da ≤130mm 130mm 320mm

s ≤2 2 s<4 s≤0.05da 0.05da

≤.11da s<0.11da. s≤0.05da 0.05da

≤0.09da s<0.09da


-10% +12.5

%10 ±9% +17.5%

-12.5% ±12.5% ±10 +20%

-15% +15%

-12.5% +12.5%


Table 3: Types of Length and Permissible Deviation in Length

in DIN 1630, 17173, 17175, 17176, 17179

Type of Length Premissuble Deviations in Length, mm

Manfacturing Length By agreement

Specified Length ±500


Length ≤6m -0, +10

<6-12mm -0, +15

<12m By agreement

Table 4: Permissible Deviation in Outside Diameter in DIN



Diameter Permissible

Deviation Outside


4-10mm ±0.08mm 75-81mm ±0.35mm 170-180mm


12-30mm ±0.1mm 85-90mm ±0.40mm 190-200mm


32-40mm ±0.15mm 95-100mm ±0.45mm 220-

240mm ±1.20mm

42-50mm ±0.20mm 110-12mm ±0.50mm

260mm ±1.30mm

55-60mm ±0.25mm 130-146m ±0.70mm

65-70mm ±0.30mm 150-160m ±0.80mm

Table 5: Types of Length and Permissible Deviation in Length

in 2391

Fixed Length <2000 td> ±500

≥2000 10%

Length <500mm td> -0, +2

<500-2000mm -0, +3

<2000-5000 -0, +5

<5000-7000 -0, +10

<7000 By agreement

Table 6: Permissible Deviation in Outside Diameter in DIN

2440, 2441

Outside Diameter

(mm) Max

(mm) Min

(mm) Outside Diameter


10.2 10.6 9.8 48.3 48.8 47.9

13.5 14.0 13.2 60.3 60.8 59.7

17.2 17.5 16.2 76.1 70.6 75.3

21.3 21.8 21.0 88.9 89.6 88.0

26.9 27.3 26.5 114.3 115.0 113.1

33.7 34.2 33.3 139.7 140.0 138.5

42.4 42.9 42.0 165.1 166.5 163.9

Table 7: Permissible Deviation in Outside Diameter in DIN


Nominal Outside


(mm) Max.Permissible Diameter Variation

Pipe Body Pipe End

D<200 td> ±1%(Values up to ±0.5mm

are permissible in all case) ±1%(Values up to ±0.5mml.

are permissible in A case)

200≤ D<500 td> ±1% ±0.7%

500≤D ±1% 1.6mm

Table 8: Permissible Deviation in Outside Diameter in DIN


Manufacturing Process Limit Deviation of Outside Diameter

Cold Forming ±0.75%

Hot Forming ≤100mm ±0.75%

<100-320mm ±0.9%

<320mm ±1.0%

Table 9: Permissible Deviation in Wall Thickness in DIN


Tube Outside Diameter Permisible Deviations In Wall

Thickness for Thicknesses

Up to 2 Exceeding 2

Tolerance of Classes I and 2 ±0.20 ±10% of Wall


Tolerance Class 3 ±0.20 -10%, +15% of Wall Thickness

Company Contact:

  • Phone: 862133780199

  • Address: No.273, Siping Road, Shanghai, China

  • Email: Email

Published date: October 7, 2013 -

  • Business Description: Sunny Steel provide a wide range of steel products as Steel pipes,

    Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite

    steel pipe used in the construction industry.

    We provide a wide range of steel products used in the construction industry:

    Steel pipes

    Seamless tube

    seamless pipes

    Alloy pipes

    Pipe fittings

    Composite steel pipe

    Contact us today to arrange a quote or estimate. Our steel fabrication products are real trusted and most affordable choice.

    Factory and industrial products

    In addition to our steel products for construction, we also offer a variety of steel fabrication products for use in industry. We provide local factories with steel cutting, fabricating, and distributing pipe fittings anc composite pipes.

    Our versatility ensures we will be able to provide you with the steel products you require to to complete a project, from start to finish.

    Contact us today to arrange a quote or estimate

    As a long established steel fabrication company in China, we can be trusted to deliver what you need, in the time you need it. We understand that in the construction industry time frame is often important.

    Whilst providing a quality, trusted service, we also place a high premium on quality craftsmanship. Our steel products are long lasting, and always meet our clients exact specifications.

    Our team

    Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

    Call us today to discuss your project's needs and find out what options are available.

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