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Bright Annealed Tubes

Product description

Bright Annealed Tubes Description

The traditional annealing approach is performed in a so referred to as open furnace, where the atmospheric oxygen reasons scaling of the heat treated materials, which makes the surface rough. HUASHANG STEEL has developed a one of a kind bright annealing process, the heat treatment is carried out in a so-called clsoed furnace. The warmth handled materials is covered by means of an inter-fuel atmosphere, which ensures the oxygen cant enter the furance or come in to contact with the substances and react to shape scale on or tarnish the materials. The surfaceend is clean, bright and precision, which is a top-notch beginning point for similarly system, like electro-polishing and mechanical polishing.

Especially for the tube with size greater than 12 meters, the ordinary pickling tube is very hard to clean the internal surface, however, with the bright annealing method,  our tubing is much cleaner, smoother on both inner and outer surface. We use bright annealing method, the temperature of furnace can reach greater than 1350℃, and the tolerance for the putting and real temperature can be controlled Within ±2℃, which is not possible for the regular annealing To ensure the quality, all tubes are done 100% PMI, 100% Hydraulic test, 100% inner cleaned by sponge, 100% dimension test, and 100% surface test.

What is more, our quality of precision drawn tubing is same to precision rolling but has more advantage on price?  We are using the advanced cold drawn technology from Japan and Korean, making the close dimension controls Huashang steel tubing used for instrument tubing, chromatography tubing, hydraulic tubing, high-pressure tubing, cleaned tubing, multi-core tubing. Type of tubes is welded tubing and seamless tubing.

Straight Tubes Bright Annealed Tube Advantages

1. Superior Surface Finish
2. Better Mechanical Property
3. More Precise Dimension

Bright Annealed Tubes Sizes

welded tubing size range
OD: 0.19mm--44.5mm, T.W: 0.08mm--3.81mm
Length: CUT TO LENGTH

The seamless straight tubing & bright annealed tubing sizes:

OD(mm)*T.W (mm)
4.76×0.51/4.76×0.71/4.76×0.89/4.76×1.24
6×1/6×1.5
6.35×0.51/6.35×0.71/6.35×0.89/6.35×1.24/6.35×1.65
7.94×0.71/7.94×0.89/7.94×1.24/7.94×1.65
9.53×0.71/9.53×0.89/9.53×1.24/9.53×1.65
10×1/10×1.5/10×2
12×1/12×1.5
12.7×0.71/12.7×0.89/12.7*1.24/12.7×1.65
15.88×0.71/15.88×0.89/15.88×1.24/15.88×1.65/15.88×2.11
16×1/16×1.5/16×2
19.05×1/19.05×1.24/19.05×1.65/19.05×2.11
25.4×1.24/25.4×1.65/25.4×2.11/25.4×2.54
31.8×1.24/31.8×1.65/31.8×2.11/31.8×2.54
38.1×1.24/38.1×1.65/38.1×2.11/38.1×2.54/38.1×3.05

Bright Annealed Tubes Materials

Austenitic Stainless Steel:
TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H,TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo. S30432, S31042, N08367
Duplex & Super Duplex Steel: S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel:
N06600, N06601, N06625, N07718, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

Bright Annealed Tubes Standard
ASTM A789, ASME SA789, EN10216-5, ASTM B163, ASTM B167, ASME SB163, ASME SB167, ASTM B668, ASME SB668, ASTM A269, ASME SB677, ASTM A213, ASME SA213, ASME SA269, ASMT A270, ASTM B622, ASTM B516

Heat Treatment: Bright Annealed
NDT: Eddy Current or Hydraulic test or UT

Chemical Composition of Nickel Alloy, Duplex steel & Austenitic Stee

Grade C Si Mn P S Cr Ni Mo Ti N Cu Fe Al Co Zr Nb Tu Va
Max Max Max Max Max Max Max Max Max Max
Nickel Alloy
Inconel 600/No6600/2.4816 0.15 0.5 1 0.015 14-17 ≧72 0.5 6.0-10.0
Inconel 600/No6601/2.4851 0.1 0.5 1.5 0.015 21-25 58-63 1 1.0-1.7
Inconel 690/No6690 0.05 0.5 0.5 0.015 27-31 58 0.5 7.0-11.0
Inconel 625/No6625/2.4856 0.1 0.5 0.5 0.015 0.015 20-23 ≧58 8.0-10.0 ≦0.4 5 ≦0.4 3.15-4.15
Inconel 718/No7718/2.4668 0.08 0.35 0.35 0.015 0.015 17-21 50-55 2.8-3.3 0.65-1.15 0.006 0.3 Remainder 0.2-0.8 4.75-5.5
Incoloy 800/No8800/1.4876 0.1 1 1.5 0.015 19-23 30-35 0.15-0.6 0.75 ≧39.5 0.15-0.6
Incoloy 800H/No8810/1.4958 0.05-0.1 1 1.5 0.015 19-23 30-35 0.6-1.2 0.75 ≧39.5 0.15-0.6 1
Incoloy 825/No8825/2.4858 0.05 0.5 1 0.03 19.5-23.5 38-46 2.5-3.5 1.5-3 ≧22 0.2
C-276/No10276/2.4819 0.01 0.08 1 0.04 0.03 14.5-16.5 Balance 15.0-17.0 4.0-7.0 2.5 3-4.5 0.35
Monel 400/No4400/2.4360 0.3 0.5 2 0.024 ≧63 28-34 2.5
Monel K-500/No5500 0.18 0.5 1.5 0.01 63 0.35-0.85 27-33 2 2.3-3.15
Alloy 20/No8020/2.4660 0.07 1 2 0.045 0.035 19-21 32-38 2.0-3.0 3.0-4.0 Balance 8C-1
Alloy 28/No8028 0.03 1 2.5 0.03 0.03 26-28 30-34 3.0-4.0 0.6-1.4 Remainder
Duplex Steel 
S31803/1.4462 0.03 1 2 0.03 0.02 21-23 4.5-6.5 2.5-3.5 0.08-0.2
S32205/1.4462 0.03 1 2 0.03 0.02 22-23 4.5-6.5 3.0-3.5 0.14-0.2
S32750/1.4410 0.03 0.8 1.2 0.035 0.02 24-26 6.0-8.0 3.0-3.5 0.24-0.32 0.5
S32760/1.4501 0.05 1 1 0.03 0.01 24-26 6.0-8.0 3.0-4.0 0.2-0.3 0.5-1.0
Austenitic
304/1.4301 0.08 1 2 0.045 0.03 18-20 8-10.5
304L/1.4307 0.035 1 2 0.045 0.03 18-20 8.0-12.0
304H/1.4948 0.04-0.1 1 2 0.045 0.03 18-20 8.0-11.0
316/1.4401 0.08 1 2 0.045 0.03 16-18 11.0-14.0 2.0-3.0
316L/1.4404 0.035 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0
316H/1.4919 0.04-0.1 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0 0.1
316Ti/1.4571 0.08 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0 0.7>5x(C+N)
321/1.4541 0.08 1 2 0.045 0.03 17-19 9.0-12.0 0.7>5x(C+N)
321H/1.4878 0.04-0.1 1 2 0.045 0.03 17-19 9.0-12.0 H
317/1.4449 0.08 1 2 0.045 0.03 18-20 11.0-14.0 3.0-4.0
317L/1.4438 0.035 1 2 0.045 0.03 18-20 11.0-15.0 3.0-4.0
347/1.4550 0.08 1 2 0.045 0.03 17-19 9.0-12.0
347H/1.4912 0.04-0.1 1 2 0.045 0.03 17-19 9.0-13.0
310S/1.4845 0.08 1 2 0.045 0.03 24-26 19.0-22.0 0.11
310H/1.4845 0.04-0.1 1 2 0.045 0.03 24-26 19.0-22.0
N08904(904L)/1.4539 0.02 1 2 0.045 0.03 19-23 23.0-28.0 4.0-5.0 0.1 1.0-2.0
S31254(254Mo)/1.4547 0.02 0.8 1 0.03 0.01 19.5-20.5 17.5-18.5 6.0-6.5 0.18-0.22 0.5-1.0

Bright Annealed Tubes Specification/Technical Data


Technical Data




Application Areas


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