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Jiaozuo Hainaxin Hydraulic Equipment Manufacturing Co., Ltd.

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  • High-precision cold drawn tube
    High-precision cold drawn tube The high-precision cold drawn tube is made of hot rolling seamless steel tube and longitudinal welded pipe blank, which are processed on special cold drawing machine with die by particular deformation mechanism design after chemical treatment.Cold drawn pipe is usually maked of seamless tube, HNX is a leading steel pipe manufacturer.The Product performs Chinese national standard GB/T 3639-2009: Cold-drawn or cold-rolled precision seamless steel tubes, Which is modified in relation EN 10305-1:2002(Steel tubes for precision applications-Technical delivery conditions Part 1: Seamless cold drawn tubes).The product possesses strictly diameter accuracy, whose external diameter is measured with outside micrometer, inner diameter with inner scale. Inside and outside surface finish and straightness are both fine. Straightness range is 0.3 ~ 0.5 mm/m, inner-hole roughness range is 0.8 ~ 1.6 μm, wall thickness difference is ± 5%.Technical parameters(GB/T 3639-2009(MOD EN 10305-1:2002))Our company’s high-precision cold drawn tube can be customized in steel grades and sizes. Existing products‘ external diameter range is Φ60mm~Φ299mm,length less than 13m, and materials cover 20#、45#、16Mn、25Mn and high strength low alloy cold drawn tubes and honing tubes.The standard grade table of seamless steelHigh-precision cold drawn steel tube is a new type of high-tech energy-saving products. Advantages include:1)High-precision cold drawn steel tube adopts cold-drawing technology , can be used as hydraulic and pneumatic cylinder tubes, hydraulic pipelines, oil pump pipes and so on, especially non-standard special long stroke cylinders.2)The metal structure of cold drawn steel tube presents fibrous, which effectively improves the performance of metal. Usually , the strength limit of the finished tube layer increases 60%, which is very helpful for building compactness and lightweight equipment.3)All hot rolled tubes have been detected by nondestructive inspection, and there are no defects in stock, which really ensures product performance. Such standard rate and metal utilization are both above 95%.4)High-precision cold drawn tube is efficiently processed without inner-hole machining. Such, a 250 mm diameter, 10 m long cylinder only takes 4 min, Which is conducive to timely supply high-precision products.The company provides diversified delivery conditions of products, such as Cold drawn and stress relieved (+ SR), annealed (+ A), normalized (+ N).When order product, customers need providing product name, steel grade, dimensions, quantity (weight/length), delivery condition, processing way, and special requirements, etc.
  • High-precision honing tube
    High-precision honing tube High-precision honing tube is one type of steel tubes which goes through pressure finishing and honing process after dealing with cold drawn or hot rolling process. Base on metal characteristics of cold plasticity at room temperature condition, tube surface is usually pressed with rolling tool , making the surface layer happening metal plastic flow ,which greatly improves the performance .Honing tube is a bit more expensive than the ordinary seamless steel tube,but this steel pipe has better performance and precision.The Product performs Chinese national standard GB/T 3639-2009: Cold-drawn or cold-rolled precision seamless steel tubes, Which is modified in relation EN 10305-1:2002(Steel tubes for precision applications-Technical delivery conditions Part 1: Seamless cold drawn tubes).The product possesses strictly diameter accuracy, whose external diameter is measured with outside micrometer, inner diameter with inner scale. The tolerance range is H7~H9(Refer to the table).Inside and outside surface finish and straightness are both fine. Straightness range is 0.2 ~ 0.3 mm/m, inner-hole roughness range is 0.2 ~ 0.8 μm, wall thickness difference is ± 5%.Technical parameters(GB/T 3639-2009(MOD EN 10305-1:2002))Our company’s high-precision honing tube can be customized in steel grades and sizes. Existing products‘ outside diameter range is Φ60mm~Φ299mm,length less than 13m, and materials cover 20#、45#、16Mn、25Mn and high strength low alloy cold drawn tubes and honing tubes.The standard grade table of seamless steelHigh-precision honing tube is one of precision steel tubes dealing with cold drawn or hot rolling process. Advantages include:1) The product has manyhighlights, like owning inside and outside wall without oxidation layer, bearing high pressure without leakage, being known for high precision, high finish, cold bending without deformation, flaring and flattening without cracks, etc. It mainly used for hydraulic and pneumatic cylinder tubes.2) The product adopts Rolling forming technology. And Surface layer has high fatigue strength with residual compressive stress, forming the sclerotic layer. Wear resistance, corrosion resistance and fit quality are all increased, as well as surface roughness decreased, achieving two purposes of finishing and strengthen at the same time.The company provides diversified delivery conditions of products, such as Cold drawn and stress relieved (+ SR), annealed (+ A), normalized (+ N).When order product, customers need providing product name, steel grade, dimensions, quantity (weight/length), delivery condition, processing way, and special requirements, etc.Honing tube diameter tolerance
  • Seamless cold drawn tube
    Seamless cold drawn tube Seamless steel pipe is one kind of steel tubing with a hollow section, no seams around the strip.The high-precision cold drawn tube is made of hot rolling seamless steel tube and longitudinal welded pipe blank, which are processed on special cold drawing machine with die by particular deformation mechanism design after chemical treatment.The Product performs Chinese national standard GB/T 3639-2009: Cold-drawn or cold-rolled precision seamless steel tubes, Which is modified in relation EN 10305-1:2002(Steel tubes for precision applications-Technical delivery conditions Part 1: Seamless cold drawn tubes).The product possesses strictly diameter accuracy, whose external diameter is measured with outside micrometer, inner diameter with inner scale. Inside and outside surface finish and straightness are both fine. Straightness range is 0.3 ~ 0.5 mm/m, inner-hole roughness range is 0.8 ~ 1.6 μm, wall thickness difference is ± 5%.Technical parameters(GB/T 3639-2009(MOD EN 10305-1:2002))Our company’s high-precision cold drawn tube can be customized in steel grades and sizes. Existing products‘ external diameter range is Φ60mm~Φ299mm,length less than 13m, and materials cover 20#、45#、16Mn、25Mn and high strength low alloy cold drawn tubes and honing tubes.The standard grade table of seamless steelHigh-precision cold drawn steel tube is a new type of high-tech energy-saving products. Advantages include:1)High-precision cold drawn steel tube adopts cold-drawing technology , can be used as hydraulic and pneumatic cylinder tubes, hydraulic pipelines, oil pump pipes and so on, especially non-standard special long stroke cylinders.2)The metal structure of cold drawn steel tube presents fibrous, which effectively improves the performance of metal. Usually , the strength limit of the finished tube layer increases 60%, which is very helpful for building compactness and lightweight equipment.3)All hot rolled tubes have been detected by nondestructive inspection, and there are no defects in stock, which really ensures product performance. Such standard rate and metal utilization are both above 95%.4)High-precision cold drawn tube is efficiently processed without inner-hole machining. Such, a 250 mm diameter, 10 m long cylinder only takes 4 min, Which is conducive to timely supply high-precision products.The company provides diversified delivery conditions of products, such as Cold drawn and stress relieved (+ SR), annealed (+ A), normalized (+ N).When order product, customers need providing product name, steel grade, dimensions, quantity (weight/length), delivery condition, processing way, and special requirements, etc.
  • Precision steel tube
    Precision steel tube Precision steel pipe usually is maked of seamless tube with high precision.As a well-known seamless pipe supplier, HNX provides a wide range steel tube.High-precision honing tube is one type of steel tubes which goes through pressure finishing and honing process after dealing with cold drawn or hot rolling process. Base onmetalcharacteristics of coldplasticityatroom temperaturecondition, tube surface is usually pressed with rolling tool , making the surface layer happening metal plastic flow ,which greatly improves the performance .Honing tube is a bit more expensive than the ordinary seamless steel tube,but this steel pipe has better performance and precision.The Product performs Chinese national standard GB/T 3639-2009: Cold-drawn or cold-rolled precision seamless steel tubes, Which is modified in relation EN 10305-1:2002(Steel tubes for precision applications-Technical delivery conditions Part 1: Seamless cold drawn tubes).The product possesses strictly diameter accuracy, whose external diameter is measured with outside micrometer,inner diameterwith inner scale. The tolerance range is H7~H9(Refer to the table).Inside and outside surface finish and straightness are both fine. Straightness range is 0.2 ~ 0.3 mm/m, inner-hole roughness range is 0.2 ~ 0.8 μm, wall thickness difference is±5%.Technical parameters(GB/T 3639-2009(MOD EN 10305-1:2002))Our company’s high-precision honing tube can be customized in steel grades and sizes. Existing products‘ outside diameter range is Φ60mm~Φ299mm,length less than 13m, and materials cover 20#、45#、16Mn、25Mn and high strength low alloy cold drawn tubes and honing tubes.The standard grade table of seamless steelHigh-precision honing tube is one of precision steel tubes dealing with cold drawn or hot rolling process. Advantages include:1) The product has manyhighlights, like owning inside and outside wall without oxidation layer, bearing high pressure without leakage, being known for high precision, high finish, cold bending without deformation, flaring and flattening without cracks, etc. It mainly used for hydraulic and pneumatic cylinder tubes.2) The product adopts Rolling forming technology. And Surface layer has high fatigue strength with residual compressive stress, forming the sclerotic layer. Wear resistance, corrosion resistance and fit quality are all increased, as well as surface roughness decreased, achieving two purposes of finishing and strengthen at the same time.The company provides diversified delivery conditions of products, such as Cold drawn and stress relieved (+ SR), annealed (+ A), normalized (+ N).When order product, customers need providing product name, steel grade, dimensions, quantity (weight/length), delivery condition, processing way, and special requirements, etc.Honing tube diameter tolerance
  • Welded pipe
    Welded pipe Welded pipe sizes and dimensionsWelded pipes are used especially for pipeline constructions and for larger dimensions in the process plants; any specifications and qualities are part of our supply program.For example, we supply carbon steel pipes for pipeline projects throughout the world according to:API 5L X 52, X60, X65, X70Welded carbon and alloyed process plant pipes in acc. to below standards:ASTM A333, 671, 672, 691Welded Stainless steel, special alloys pipes for chemical and petrochemical plants to:ASTM A 312, 358, 778, 928, ASTM B 619, B725All materials are also available in acc. to equivalent DIN/ EN standards and grades.
  • Welding pipe
    Welding pipe Welding pipes used in billet steel sheet or strip, its different welding process is divided into the furnace pipe, welded (ERW) pipes and automatic arc welded pipe. Because of the different forms of welding is divided into two kinds of Longitudinal and spiral welded pipe. Its end shape is divided into circular pipe and shaped (square, flat, etc.) pipe. Welded pipes of different materials and its use is divided into the following varieties:GB / T3091-2008 (low pressure fluid welded steel pipe). Mainly used for conveying water, gas, air, oil and heating hot water or steam generally lower pressure fluid and other uses tubes. The representative material for: Q235A grade steel.GB / T14291-2006 (mine fluid delivery welded steel pipe). Mainly used for mine air pressure, drainage, gas discharge axis with straight seam welded steel pipe. The representative of material Q235A, B grade steel.GB / T12770-2002 (mechanical structure with stainless steel welded pipe). Mainly used for machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical components and structures. The representative of material 0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb like.
  • Welded steel tube
    Welded steel tube Applications RangeThe products are widely used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction, it is one of 20 key product of development. For the transport of liquids: water supply, drainage. Used for gas transportation: gas, steam, liquefied petroleum gas. For structural purposes: as piling pipe for bridges; piers, roads, buildings and other structures tube.
  • Welded steel pipe
    Welded steel pipe

    Longitudinal Specification Table

    Nominal size GB Thickness mm

    Specificationinches

     

    Outer diameter

    GB wall thickness

    Pipe theoretical   weight table

    0.4

    15

    1/2

    21.25

    2.75

    1.26

    0.6

    20

    3/4

    26.75

    2.75

    1.63

    1

    25

    1

    33.3

    3.25

    2.42

    1.2

    32

    11/4

    42.25

    3.25

    3.13

    1.5

    40

    11/2

    48

    3.5

    3.84

    2

    50

    2

    60

    3.5

    4.88

    2.5

    70

    21/2

    75.5

    3.75

    6.64

    3

    80

    3

    88.5

    4.0

    8.34

    4

    100

    4

    114

    4.0

    10.85

    5

    125

    5

    140

    4.5

    15.04

    6

    150

    6

    165

    4.5

    17.81

    8

    200

    8

    219

    6

    31.52

  • Welded tube
    Welded tube Longitudinal production process is simple, high production efficiency, low cost, rapid development. Spiral Welded Longitudinal generally higher than, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight seam pipe, weld length of 30 to 100%, and lower production rate.General pipe used to transport low pressure fluid. With Q195A, Q215A, Q235A steel. It can also be used for other soft easy to weld steel. To make hydraulic pipe bending, flattening and other experiments, there are certain requirements for surface quality, usually delivery length of 4-10m, we are often asked to cut to length (or double length) delivery. Pipe specifications with nominal diameter representation (millimeters or inches) nominal diameter different from the actual, ordinary steel pipe and thicker steel pipe two kinds of predetermined wall thickness, steel tube end form was divided by threaded and non-threaded two kinds of table 6-17 of welded steel pipe size.Without welding wire sets and high frequency resistance straight seam welded pipe, nor do they need to do across the grounding line repainting, eliminating the traditional welding and wire sets and other complex construction process. Just a straight pipe joint connecting tube and pipe, pipe fitting and even after the weight on the bar management junction boxes, positioning special tool to tighten (wring) to screw with the junction box at the high-frequency resistance seam welding with a lock nut tight It can set. Pipe bend with the elbow can be bent corresponding field curvature.

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