Quick Details | Thickness: | 1 - 20 mm | Section Shape: | Round | Outer Diameter: | 4 - 150 mm | | Place of Origin: | Shandong China (Mainland) | Secondary Or Not: | Non-secondary | Application: | Structure Pipe | | Technique: | Cold Rolled | Certification: | ISO 9001 | Surface Treatment: | black painting or varnish | | Alloy Or Not: | Non-alloy | length: | 5m . 5.8m . 6m.11.8m.12m or as customer need | usage: | Boiler pipe /structure pipe /fluid pipe /oil pipe /gas pipe | | Ends Finish: | Plain ends or Bevelled ends | tolerance: | OD +1% /-1%, .thickness +12.5% / -10%. Length 2mm | TPI is available: | third party inspection BV SGS | | MTC is available: | mill test certificate | market: | Southeast Asia. America, the Middle East, Oceania, Africa,East Asia | Grade: | 10#,20#,45#,A53(A,B),A106(B,C),10#-45#,A53-A369 | | Standard: | GB/T8162,GB/T8163,ASTM A106-2006,ASTM A53-2007,GB,ASTM | Specifications 1.EN10305 E235 precision steel tube
2.OD 4-150mm Thickness 1-20mm
3.length 2-11m or as you need
4.ISO9001 certificate EN10305 E235 precision seamless steel tube | Name | EN10305 E235 precision seamless steel tube | | Standard | Din 2391 | | Material | St35,St45,St52 | | Supply Condition | Cold drawn seamless steel tube, stress relieved and honed or skived roller burnished | | Appearance | Tube shall have a smooth internal and external surface consistent with cold working process, tube inner surface should be free from rust, scratches and other surface irregularities. | | Appearance | Tube shall have a smooth internal and external surface consistent with cold working process, tube inner surface should be free from rust, scratches and other surface irregularities. | | Tolerance on Outer Dia. | ≤ Dia 40 +/-0.2 mm
≥ Dia 40 ≤ Dia 100 +/-0.3mm
≥ Dia 100 +/-0.5mm | | Surface Roughness | Ra = 0.4~0.8 Micron | | Application | Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic s ervices.For Auto use,machinery use,oil cylinder tube,motorcycle shock reducer use,auto shock reducer inner cylinder,etc.Seamless steel pipes for low and medium pressure boiler, high pressure boiler, ship-building,Liquid service, petroleum cracking, chemical fertilizer equipment,Drawing-oil-equipment and structure purposes. | | material | Chemical Composition(%) | | | C max. | Si max. | Mn | P max. | S max. | | St 35 | 0.17 | 0.35 | ³0.40 | 0.025 | 0.025 | | St 45 | 0.21 | 0.35 | ³0.40 | 0.025 | 0.025 | | St 52 | 0.22 | 0.55 | £1.60 | 0.025 | 0.025 | | can add the following elements: Nb:£0.03%;Ti:£0.03%;V:£0.05%;Nb+Ti+V:£0.05% | | The mechanical properties of the tube at room temperature | | material | Cold finished (hard)BK(+C) | Cold finished (Soft)BKW
(+LC) | Cold finished and stress-relieved BKS(+SR) | | | Tensile Strength(σb/MPa) | Elongation(δ5/%) | Tensile Strength(σb/MPa) | Elongation(δ5/%) | Tensile Strength(σb/MPa) | Yield Point(Mpa) | Elongation(δ5/%) | | St 35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | | St 45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | | St 52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | | The yield strength of annealed state should be at least equal to the tensile strength of the 50%. According tothe differentdegree of deformation,Cold working (hard) and cold (soft) yield strength state may be close to the tensile strength.When calculating, Cold working (hard) state should be at least 50% of the tensile strength as the foundation, and the cold working(soft) state is 70%. | | material | Annealed GBK(+A) | Normalized NBK(+N) | | | Tensile Strength(σb/MPa) | Elongation(δ5/%) | Tensile Strength(σb/MPa) | Yield Point(Mpa) | Elongation(δ5/%) | | St 35 | 315 | 25 | 340-470 | 235 | 25 | | St 45 | 390 | 21 | 440-570 | 255 | 21 | | St 52 | 490 | 22 | 490-630 | 355 | 22 | | The yield strength of annealed state should be at least equal to the tensile strength of the 50%. According to the different degree of deformation,Cold working (hard) and cold (soft) yield strength state may be close to the tensile strength.When calculating, Cold working (hard) state should be at least 50% of the tensile strength as the foundation, and the cold working(soft) state is 70%. | Packaging | Items per Carton: | 25 Kilograms/Ton | | Package Measurements: | 238X238X580 cm | | Gross Weight: | 25000.0 kg | | Package Type: | bundle in container with plastic bags
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