ČSN 42 5715:1981 Hot-rolled seamless steel tube

Place of Origin Chiina Japan
Brand Name Best Pipeline
Certification API/CE / ISO /TUV
Model Number 1/2''-48''
Minimum Order Quantity 1Tonds
Price 450 usd/tton
Packaging Details According To Customers Demands
Delivery Time 5-8 working days
Payment Terms L/C /TT
Supply Ability 1000000 Tons

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Product Details
Standard API/GB/ DIN/ JIS /GOST Grade A106/A53 /A333/A369
Technique Hot Rolled /Colded Drawn Section Round /Square
Application Bolier Pipes Sample Can Be Send For Free
Certificate CE Place Of China Tianjin/Qingdao /Shanghai
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Product Description

Product Name : Dimensions and weights of seamless tubes according to standards EN, DIN, BS, UNI, NFA, STN, ČSN, GOST, PN-H


Name : Seamless Steel Tubes and Pipe for Boliers


Best Pipeline Products carries large inventories of carbon, chrome-moly and specialty pipe at the ready for any project, anywhere in the world.

Along with our extensive inventory of seamless and welded steel pipe, we also stock tubing, fittings and flanges to match any need in the processing, energy, manufacturing, fabrication and construction industries. Whether it’s for service in high- or low-temperature settings, American Piping Products has the strongest inventory of the right pipe at the right schedule with the right specs in our yards, ready to ship today.

1: Product Information 


Product name  seamless boiler steel pipe&tube

ASTM A 179 A53 A106,API5L Gr.B X60 X42,Q235B, Q345B, Q345C, 20#,

12Cr1MoV,15CrMo, TP304,316 310S.S235JR ect

Thickness 1-100mm



Outer diameter 6-820 mm
Length 5.8m 6m 12m or as customer demand
Used area

Petroleum,chemical,power, gas, water, metallurgy, shipbuilding, construction

, etc Or as customer demand

Package In bundles, Varnish coating, Ends can be beveled or square cut, End capped
Certification ISO9001.2000, , API, Mill Test Certificate
Thirdparty inspection OMIC,SGS, or as customer demand
Remark We can customer made for special requirement


2: Tolerance in Dimension:

OD GB/T3639(GB8713) DIN2391(EN10305) Our Tolerence Best Quality
4-30mm ±0.10mm ±0.08mm ±0.05mm ±0.02mm
31-40mm ±0.15mm ±0.15mm ±0.05mm ±0.03mm
41-50mm ±0.20mm ±0.20mm ±0.05mm ±0.03mm
51-60mm ±0.25mm ±0.25mm ±0.08mm ±0.03mm
61-70mm ±0.30mm ±0.30mm ±0.10mm ±0.05mm
71-160mm ±0.30mm ±0.30mm ±0.10mm ±0.05mm
Tolerance in WT ±0.12mm ±0.10mm ±0.05mm ±0.03mm
Process Diameter Length Precision Inner Hole Roughness
Cold Rolled 30-100mm ≤12 m H8-H10 0.4-1.6
Cold Draw 30-250mm ≤12 m H8-H10 0.8-1.6
Honing 40-500mm ≤12 m H8-H9 0.4-0.8
Rolling 40-400mm ≤7 m H8 0.4
Inner Diameter H8 H9 H10  


3:Our Services: 

According to the different needs of customers, seriously implement each order, let customers are satisfied


4:Company Information: 

More than 20 years of careful management, customer first, quality first, the company expects to carry out multiple aspects of the level of cooperation with the customer



ČSN 42 5715:1981   Hot-rolled seamless steel tube 0


6: Shipment and packing: 

ČSN 42 5715:1981   Hot-rolled seamless steel tube 1

6:Product Show 


ČSN 42 5715:1981   Hot-rolled seamless steel tube 2ČSN 42 5715:1981   Hot-rolled seamless steel tube 3ČSN 42 5715:1981   Hot-rolled seamless steel tube 4ČSN 42 5715:1981   Hot-rolled seamless steel tube 5ČSN 42 5715:1981   Hot-rolled seamless steel tube 6ČSN 42 5715:1981   Hot-rolled seamless steel tube 7



7:Delivey conditions:

Material Tensile strength Yield strength Elongation Hardness
Ck20/20#/AISI1020 >520 N/ mm2 >375 N/mm2 >15% >85HB
Ck45/45#/AISI1045 >600 N/ mm2 >520 N/ mm2 >15% >85HB
ST52/16Mn/Q345D >600 N/ mm2 >520 N/ mm2 >15% >85HB
25Mn/STKM 13C-T >600 N/ mm2 >530 N/ mm2 >15% >85HB



  • Standard packing with plastic caps and strapped bundles.
  • Commercial length 2000~10500mm,custom lengths upon request
  • Surface protection