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Precision Seamless Cold Drawn Steel Tubes GOST9567 Mechanical Steel Tubing GOST9567 Steel Tubes-Precision Steel Tubes for Mechanical Engineering GOST9567 Precision steel tubes Applications: Automobile, Machinery Engineering, Autoparts etc. Size range: O.D.:6-168mm W.T.:1-15mm L:max12000mm Chemical composition(%,max) Steel Grade C Si Mn Cr Ni Mo S P Cu 10 0.07-0.14 0.17-0.37 0.35-0.65 0.15 0.3 - - - - 20 0.17-0.24 0.17-0.37 0.35-0.65 0.25 0.25 - 0.03 0.025 0.3 35 0.32-0.40 0

SGS BV 1020 1035 1045 High tolerance seamless steel tubes /pipes for automotive components Production Standard: GB/T3639,ASTM A519,DIN2391,EN10305-1,EN10305-1,Customer's special requirement will be upon discussion Size: O.D. 6-121mm W.T.0.8-18mm Material: 10,20,35,45,4130,4140,St52,45 E355 etc. Grade and Chemical Composition ( ％ ) Grade C Mn P≤ S≤ Si Cr Mo 1008 ≤ 0.10 0.30-0.50 0.040 0.050 - - - 1010 0.08-0.13 0.30-0.60 0.040 0.050 - - - 1018 0.15-0.20 0.60-0.90 0.040 0.050 -

Hydraulic Cylinder steel tubes and pipes EN10305-1 E355 St52 16Mn Standard : GB/T3639, GB/T8713, EN10305-1:2002, EN10305-2:2002, ASTM A519-2006, ASTM A513-2007, GB/T1591-2008, GB/T17396-2009 Material: 20#, 45#, Q345B, Q345D, 25Mn, 27SiMn, E355 Hydraulic and pneumatic cylnder tube standard/size/tolerance Working method Tube ID (mm) Length (m) Straightness (mm/m) Tolerance on ID Tolerance on WT ID Roughness (um) Cold Draw 40-400 ≤12m 0.2-0.5 　/ ±5% ≤1.6 Cold Rolled 40-150 ≤12m

3Cr13 2Cr13 1Cr13 Bearing seamless steel tube Quick info: Material 3Cr13 2Cr13 1Cr13 OD 4-440mm WT 2-50mm Production Method Seamless+Cold draw or Cold rolled Application Used for washing machine shaft sleeve,Bearing sleeve End Plain Standard ASTM A519 EN10305-1 DIN 2391 etc Detail info: Material Feature: 1cr13, 2cr13, 3cr13 belong to martensitic stainless steel, the main difference is that the carbon content is different: The carbon content of 1Cr13 is 0.15%, 2Cr13 is 0.16-0

Product Name: 40Cr / 41Cr4 / 5140 Automotive Application Steel Tube BK / BKS Strong Durability Seamless Tubes Material: 40Cr / 41Cr4 / 5140 Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m Cold Rolled/ Cold Drawing process on the seamless steel tubes, to reach high accuracy on the OD and WT tolerance Quality Control: 1. Incoming Raw Material Inspection 2. Raw Material Segregation to avoid steel grade mix-up 3. Heating and Hammering End for Cold Drawing 4.

1. Product Name: St37.4 Seamless Carbon Steel Tube in High Precision with good Bending Ability 2. Size Range: OD: 6-154mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m 3. Stable Quality with Comeptitive Price 4. High Performance and Longer Working Life Steel Pipe Application: DIN1630 Steel Tubes are used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purpose. 100% Eddy Current Testing. 100% Size Tolerance Checking. 100% Tube

Product Name: Precision Seamless Steel Tube DIN2391 St35 St45 St52 GBK Cold Drawn Annealed Steel Tubing Material: ST35, ST45, ST52 Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m Delivery Condition: BK, BKW, BKS, GBK, NBK Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc. Stable Quality with Comeptitive Price. NBK(Bright Annealing) Heat Treatment, Surface is clean and

Product Name: JIS G3445 STKM12A Seamless Carbon Steel Tubes for Machine Structural Purposes Material: STKM11A, STKM12(ABC), STKM13(ABC) Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m Quality Control: 1. Incoming Raw Material Inspection 2. Raw Material Segregation to avoid steel grade mix-up 3. Heating and Hammering End for Cold Drawing 4. Cold Drawing or Cold Rolling, On line inspection 5. Heat Treatment:BKS, GBK, NBK 6. Straightening/Cutting to specified

Product Name: DIN 2391 St45 BK Cold Worked Precision Seamless Steel Tube for BushingMaterial: ST35, ST45, ST52Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8mDelivery Condition: 1. BK (+C) No heat treatment after last cold forming process.2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.4. GBK (+A) After the final cold forming process