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standard
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GB/T3639, GB8162,GB8163, DIN2391 ASTM A519,A106 ,A179 A53,, EN10305-1,EN10305-4,DIN17175
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Material
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1010 1020 1045 S45C S20C S10C 4130 30CrMo 4140 42CrMo ASTM106GrB ASTM179 ST37 ST52 ST38.5 CK45 etc.
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Application area
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Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemical, electric power, ships, aerospace, bearings, pneumatic components, seamless steel pipes for medium and low pressure boilers, etc. They can also be applied to steel sleeves, bearings, hydraulic, mechanical processing and other fields!
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Packing
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standard export packing ,suit for all kinds of transport
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Grade
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10#,20#,35#,45#,20cr,40Cr,20CrMo,16mn,ST35, ST37,ST37.4,ST45,ST52 and etc
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Technical
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cold rolled
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Shipment
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20feet container load 20tons pipe whose length is under 5.8m
40feet container load 20tons pipe whose length is under 11.8m |
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Terms of payment
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T/T or L/C at sight
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Length
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as buyer's request
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MOQ
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1TON
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Out Diameter
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10~325
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conanct me
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If your need,please contanct me
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MATERIAL
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chemical composition%
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C
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Si
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Mn
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S
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P
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Cr
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10#
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0.07-0.13
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0.17-0.37
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0.35-0.65
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≤0.035
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≤0.035
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20#
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0.17-0.23
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0.17-0.37
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0.35-0.65
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≤0.035
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≤0.035
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35#
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0.32-0.39
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0.17-0.37
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0.35-0.65
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≤0.035
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≤0.035
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45#
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0.42-0.50
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0.17-0.37
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0.50-0.80
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≤0.035
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≤0.035
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40Cr
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0.37-0.44
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0.17-0.37
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0.50-0.80
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≤0.035
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≤0.035
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0.08-1.10
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25Mn
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0.22-0.29
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0.17-0.37
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0.70-1.00
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≤0.035
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≤0.035
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≤0.25
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37Mn5
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0.30-0.39
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0.15-0.30
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1.20-1.50
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≤0.015
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≤0.020
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Cold-rolled (dial) seamless steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, other steel pipes, and also includes carbon thin-walled steel pipe and alloy thin-walled steel pipe. Stainless steel thin-walled steel pipe and special-shaped steel pipe. The outer diameter of hot-rolled seamless pipe is generally larger than 32mm, the wall thickness is 2.5-75mm, the outer diameter of cold-rolled seamless steel pipe can be up to 6mm, the wall thickness can be up to 0.25mm, the outer diameter of thin-walled pipe can be 5mm, and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.
Generally used seamless steel pipe: it is made of 10, 20, 30, 35, 45# and other high-quality carbon steel 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot-rolled or cold-rolled . Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipes. 45, 40Cr and other medium carbon steel seamless pipes are used to make mechanical parts, such as the force parts of automobiles and tractors. Generally, seamless steel pipes are required to ensure strength and flattening test. The hot rolled steel pipe is delivered in a hot rolled state or a heat treated state; the cold rolling is delivered in a heat treated state.
Quenching and tempering can change mechanical properties
tensile strength
Yield Strength
Elongation
Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemical, electric power, ships, aerospace, bearings, pneumatic components, seamless steel pipes for medium and low pressure boilers, etc. They can also be applied to steel sleeves, bearings, hydraulic, mechanical processing and other fields!
Hui Yuan is a trading company established based on Liaocheng Development Zone Jinyun Steel Pipe Co., Ltd. The factory has more than ten years of professional production experience .Now we have cold rolled seamless steel pipe 12 production lines and hot rolled seamless steel pipe 1 production line,one more hot rolled seamless steel pipe production line is under construction.
Our main products are listed as follows: Hot Rolled steel pipe, Precision Cold Rolled steel pipe, Cold Drawn steel pipe, alloy steel pipe, bearing steel pipe, spiral pipe, galvanized pipe,Honed tube,special shape steel pipe.etc.
Our company adheres to the business philosophy of exceeding customer expectations and fulfilling employees' dreams, and keeps making progress to provide customers with reliable products and services.
Our products have been exported to Germany, South Korea, Russia, Malaysia, Pakistan, Thailand, India, Ukraine and other countries and regions. We sincerely welcome friends from all over the world to contact us and establish mutually beneficial business relations.
