ASTM A554 Stainless Steel Ornamental Tubing

We produce stainless steel ornamental tubing as per ASTM A554 specification, stainless steel include 304, 304L, 316, 316L grade, used for ornamental, structural, exhaust, and other applications, and various finishes can be offered to meet specific purpose。

ASTM A554 Ornamental Tubing Specifications

TypeWelded tubes
GradesMT304 / 304L, MT316 / MT316L, MT321, MT430, TMT310S
FinishesAnnealed, as welded, polishing
Outside diameter12.7 – 406.4 mm
Thickness0.5 – 6.35 mm
FormsRound tubing, square tubing, rectangular tubing, elliptical Tubing

ASTM A554 Welded Tubing

澳门凯发娱乐We offer wide range sizes for ASTM A554 welded ornamental tube, including round tube, square tube, rectangular tube and special form dimensions, TIG automatic welding process from stainless steel materials, welding control as standard, bead removed or not removed as request.

  • As welded
  • Annealing and pickling
  • Cold reduced
  • Cold reduced and annealing

We also produce other forms stainless steel tubing for decorative purpose, like bending tubing, elliptic tubing, beside polishing surface performance, brushed finishing , satin finishing and hairline can be performed upon request.

Stainless Steel Material

Stainless steel grades 304/304L, 316L is custom material for ornamental tubing, 201 grade is also used for decorative tubing, Ferritic and Martensitic Stainless Steels are available in bright polishing stainless steel tubing.

UNS NoAISI No / Common Name
S30400304
S30400304
S30403304L
S31600316
S31603316L
S31635316Ti
S31700317
S31703317L
S32100321
S34700347

Polishing Finish

Stainless steel ornamental tubing is often performed in polishing finishing to make bright surface

  • 180 grit
  • 240 grit
  • 320 grit
  • 400 grit
  • 600 grit – mirror finishing

Quality

Ornamental tubing tolerance is controlled conforming to ASTM A554 mechanical tubing specification, round tubing, square tubing and rectangular tubing can be produced with wide range of dimension, and low roughness value should be inspected outside and inside surface。

Outside Dimension Tolerances of Round Tubing

OD Size, in.(mm) Wall Thickness OD,±
in. mm in. mm
Under ½ (12.7) 0.020 ‐ 0.049 0.51 ‐ 1.24 0.004 0.10
½ ‐ 1 (12.7‐25.4) 0.020 ‐ 0.065 0.51 ‐ 1.65 0.005 0.13
½ ‐ 1 (12.7‐25.4) over 0.065 ‐ 0.134 over 1.65 ‐ 3.40 0.010 0.25
Over 1 ‐ 1 ½ (25.4‐38.1), incl 0.025 ‐ 0.065 0.64 ‐ 1.65 0.008 0.20
Over 1 ‐ 1 ½ (25.4‐38.1), incl over 0.065 ‐ 0.134 over 1.65 ‐ 3.40 0.010 0.25
Over 1 ½ ‐ 2 (38.1‐50.8), incl 0.025 ‐ 0.049 0.64 ‐ 1.24 0.010 0.25
Over 1 ½ ‐ 2 (38.1‐50.8), incl over 0.049 ‐ 0.083 over 1.24 ‐ 2.11 0.011 0.28
Over 1 ½ ‐ 2 (38.1‐50.8), incl over 0.083 ‐ 0.149 over 2.11 ‐ 3.78 0.012 0.30
Over 2 ‐ 2 ½ (50.8‐63.5), incl 0.032 ‐ 0.065 0.81 ‐ 1.65 0.012 0.30
Over 2 ‐ 2 ½ (50.8‐63.5), incl over 0.065 ‐ 0.109 over 1.65 ‐2.77 0.013 0.33
Over 2 ‐ 2 ½ (50.8‐63.5), incl over 0.109 ‐ 0.165 over 2.77 ‐ 4.19 0.014 0.36
Over 2 ½ ‐ 3 ½ (63.5‐88.9), incl 0.032 ‐ 0.165 0.81 ‐ 4.19 0.014 0.36
Over 2 ½ ‐ 3 ½ (63.5‐88.9), incl over 0.165 over 4.19 0.020 0.51
Over 3 ½ ‐ 5 (88.9‐127.0), incl 0.035 ‐ 0.165 0.89 ‐ 4.19 0.020 0.51
Over 3 ½ ‐ 5 (88.9‐127.0), incl over 0.165 over 4.19 0.025 0.64
Over 5 ‐ 7 ½ (127.0‐190.5), incl 0.049 ‐0.250 1.24 ‐ 6.35 0.025 0.64
Over 5 ‐ 7 ½ (127.0‐190.5), incl over 0.250 over 6.35 0.030 0.76
Over 7 ½ ‐ 16 (190.5‐406.4), incl all all 0.00125 in./in. or mm/mm of cicumference

Outside Dimension Tolerances of Square & Rectangular Tubing

Largest Specified OD Across Flats,

in.(mm)

Wall Thickness across flats, Convexity or Concavity, ±
in. mm in. mm
To 1 ¼ (31.8), incl all 0.015 0.38
Over 1 ¼ to 2 ½ (31.8‐63.5), incl all 0.020 0.51
Over 2 ½ to 5 ½ (63.5‐139.7), incl all 0.030 0.76
Over 5 ½ to 8 (139.7‐203.2), incl all 0.060 1.52

Wall Thickness Tolerances: ± 10% of specified wall thickness.

ASTM A554 Stainless Steel Tubing Types

ASTM A554 Standard Specification

ASTM A554 covers standard specification for welded stainless steel tubing for mechanical applications where appearance, mechanical properties, or corrosion resistance is needed. The tubes shall be made from flat-rolled steel by an automatic welding process without the addition of filler metal. Tubes shall be furnished in one of the following shapes – round, square, rectangular, or special. Heat analysis shall be performed wherein several grades of steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, titanium, columbium, and tantalum.

ASTM A554 Stainless Steel Ornamental Tubing