A513-T5 Sae 1020 Or 1026 Drawn Over Mandrel Tubing ERW
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
|Minimum Order Quantity :
|Packaging Details :
|In bundles or carton boxes or wooden boxes
|Delivery Time :
|4-6weeks depended on order size and quantity
|Payment Terms :
|Supply Ability :
|5000tons per year
|Place of Origin:
|ISO9001 TS16949 EN10204.3.1
|Japanese Product Name:
|Machine Structural Purposes
drawn over mandrel steel tube,
drawn over mandrel steel tubing
JIS G3445 STKM 15A Drawn Over Mandrel Steel Tube Seamless And Electric Resistance
Product Name:Carbon steel tubes for machine structural purposes
Appllication: Machine Auto competent Furniture Bicycle Mechanical parts Mechanical Elements machine elements
STKM 12 (ABC)
STKM 15(AC) etc
Standard JIS G3445
3.Characteristic:The tubes are high precision in tolerance
4.Kindly advise heat treatment requirement if any.
HR CW SR A N HF
HR:hot rolled CW:cold worked SR:stress relieved A:annealed N:normalized HF: hot formed.
5.STKM 15A Chemical composition % max:C:0.25-0.35 S:0.35 Mn:0.30-1.00 P:0.04 S:0.04
Mechanical properties:min Tensile strength 470Mpa Yield Strength:275 Mpa Elongation:22%
Tolerances on OD
Tolerance on OD
under 50mm ±0.5mm
under 50mm ±0.25mm
under 25mm ±0.12mm
Note:1. For hot finished seamless steel tube, the outside diameter tolerance No.1 shall be applied.
2.The tolerance on outside diameter of quenched and tempered tubes shall be as agreed upon by the purchaser and manufacturer.
Tolerances on WT
Tolerance on WT
under 4mm +0.6mm -0.5mm
under 3mm ±0.3mm
under 2mm ±0.15mm
Note: For the finished seamless steel tubes the tolerances No.1 shall be applied.
The tolerances on the tube length shall be in the range of 0 to+50mm.However,when tolerances outside this range are especially required,agreement shall be made between the purchaser and manufacturer.
(DOM)Drawn Over Mandrel :
The first stages of manufacturing : ERW ,but in the finishing stages : Entire flash weld is removed and the tube is clod drawn over a mandrel.which provides the tube with a better dimensional tolerances,good surface finish and the strongest weld strength achievable.