Oval Tubing, Stainless Steel Elliptical Tube

DONGSHANG Stainless produces welded stainless steel oval tubing and elliptical tube in a wide range of sizes, oval and elliptical tubing have two shapes, elliptic tubing and flat oval tubing。

Common stainless steel grades include 201, 304, 304l, 316, 316L, compared to other metals, stainless steel is ideal material for many applications due to excellent properties, high strength, good corrosion as well as more finishes for selecting, oval tubing is usually applied for construction, mechanical, ornamental and decorative purpose.

Common Stainless Steel Grades

There are varieties of stainless steel material for Elliptical and Oval tubing, the most commonly used grades are 201, 304 and 316L, these grades have good properties, and are also cost effective options.

201, 304 and 316L Chemical Composition

GradeCSiMnPSNiCrMo
201≤0.15≤1.005.50~7.50≤0.060≤0.031.00 ~1.5013.50~15.00 \
304≤0.08≤1.00≤2.00≤0.045≤0.038.00~11.0018.00~20.00 \
316L≤0.035≤1.00≤2.00≤0.045≤0.0310.00~14.0016.00~18.002.00~3.00

201, 304 and 316L Mechanical Properties

GradeElongation (%)Tensile Strength (Rm) N/M M³Yield Strength (Rp) 0.2%N/M M³Hardness (HV)
201≥35≥515≥205≤200
304≥35≥515≥205≤200
316L≥35≥485≥170≤200

Surface Finishes of Oval Tubing / Elliptical Tube

Oval tubing is manufactured using TIG welding method, starting from quality stainless steel strip, cold formed through a set of rollers, tubes can be in welded condition, also bright annealing finish.

There are various stainless steel finishes for Elliptical Tubing and Oval Tubing, mill finishes or polishing finfishes。 Brush finish and hairline finish are often provided for tube surface to achieve good like bright appearance。

Polishing is an important process for decorative tubing, there are several grits level for selecting, and obtaining a good surface roughness.

  • 120 grit
  • 180 grit
  • 320 grit
  • 400 grit
  • 600 grit

Oval Tubing Weight Calculation

Oval Tubing Circumference = 2× 3.1415 × b + 4 × (a – b)
a = the long semi-axis (half of the long axis)
b = the short semi-axis (half of the short axis)

FORMULA澳门凯发娱乐: (Circumference/3.1415 – Wall thickness) x Wall thickness x 0.0031416 x Density

For example
304 Stainless Steel Oval Tubing
38 × 19 × 1.5 mm

The Circumference should be 97.69mm, it is from 2× 3.1415 × 9.5 + 4 × (19 – 9.5)

The weight should be (97.69/3.1415 – 1.5) x 1.5 x 0.0031416 x 7.93 in kg per meter.

Typical Applications

  • Handrail
  • Automotive exhaust system
  • Decorative architectural purpose

Surface Finishes of Stainless Steel Elliptical Tubing, Oval Tubing

Elliptical tubing is manufactured using TIG wekding method, starting from quality stainless steel strip, cold formed through a set of rollers, tubes can be in welded condition, also bright annealing finish.

There are various stainless steel finishes for Elliptical Tubing and Oval Tubing, mill finishes or polishing finfishes. Brush finish and hairline finish are often provided for tube surface to achieve good like bright apperence.

Polishing is a important process for decorative tubing, there are several grits level for selecting, and obtaining a good surface roughness。

  • 120 grit
  • 180 grit
  • 320 grit
  • 400 grit
  • 600 grit

Dimensions Of Stainless Steel Elliptical Tubing

Width (a*b)WT (mm)
8*150.5-1.5mm
10*200.5-1.5mm
12*230.5-1.5mm
7*250.5-1.5mm
13.5*270.5-1.5mm
15*250.5-1.5mm
9.5*29.50.5-1.5mm
15.6*28.60.5-1.5mm
30*1020.5-2.0mm
15*300.5-1.5mm
22*310.5-1.5mm
19*380.5-1.5mm
50*1501.0-5.0mm
25*450.5-2.0mm
20*500.5-2.0mm
14*580.5-2.0mm
25*550.5-2.0mm
30*600.5-2.0mm
25*650.5-2.0mm
25*650.5-2.0mm
35*780.5-2.0mm
40*750.5-2.0mm
40*960.5-2.0mm
30*1020.5-2.0mm
50*1101.0-5.0mm
55*1281.0-5.0mm
63*1331.0-5.0mm
50*1501.0-5.0mm
100’1951.0-5.0mm
Stainless Steel Elliptical Tubing
stainless steel oval tubing