Womic Stainless Steel Co., Ltd
Exceptional High-Temperature
Oxidation Resistance: High chromium
content (24–26%) provides outstanding resistance to oxidation and scaling up to
1050°C (1922°F) in continuous service, significantly outperforming TP304,
TP316, and TP321.
Superior Creep and Rupture Strength: Maintains excellent high-temperature
strength and creep resistance up to 1000°C (1832°F), ensuring long-term
dimensional stability and reliable performance in extreme heat transfer
applications.
Excellent Resistance to Sulfidation
and Carburization: High chromium and
nickel content provide superior resistance to sulfur attack (sulfidation) and
carbon absorption (carburization) in reducing and carburizing atmospheres.
Good Resistance to Thermal Fatigue: Excellent thermal stability and resistance
to thermal cycling fatigue, making it suitable for intermittent
high-temperature service.
Good Heat Transfer Efficiency at
High Temperatures: Maintains
consistent thermal conductivity at elevated temperatures, ensuring reliable
heat transfer performance in extreme conditions.
Good Weldability and Fabricability: Austenitic structure offers good
weldability with proper procedures, suitable for tube-to-tubesheet welding and
U-bending.
Precision Dimensional Accuracy: Strict tolerances on outside diameter
(OD), wall thickness, and concentricity ensure proper fitment in tube sheets
and consistent heat transfer performance.
International Certification: Tubes can be certified by ABS, BV, DNV, LR, GL, RINA, CCS, KR, and NK, and comply with ASME Boiler & Pressure Vessel Code Section II and PED 2014/68/EU standards.
The TP310S Heat Exchanger Tubes produced by Womic Steel conform to multiple international specifications used in high-temperature heat transfer equipment, furnaces, and pressure vessels:
|
Standard |
Description |
Equivalent Grade / Material Number |
|
ASTM A213 / ASME SA213 |
Seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes |
TP310S |
|
ASTM A269 / ASME SA269 |
Seamless and welded austenitic stainless steel tubes for general service |
TP310S |
|
ASTM A249 / ASME SA249 |
Welded austenitic steel boiler, superheater, heat exchanger, and condenser tubes |
TP310S |
|
EN 10216-5 |
Seamless stainless steel tubes for pressure purposes |
1.4845 (X8CrNi25-21) |
|
DIN 17458 |
Austenitic stainless seamless tubes for pressure purposes |
X8CrNi25-21 |
|
JIS G3463 |
Stainless steel boiler and heat exchanger tubes |
SUS310STB |
|
GB/T 13296 |
Seamless stainless steel tubes for boiler and heat exchanger |
06Cr25Ni20 (310S) |
|
ISO 9329-4 |
Seamless tubes for pressure purposes – austenitic stainless steel |
X8CrNi25-21 |
These standards ensure that TP310S Heat Exchanger Tubes meet global requirements for chemical composition, mechanical performance, dimensional accuracy, hydrostatic testing, and non-destructive examination.
Different specifications can be customized according to special requirements.
|
Execution Standard |
Main Standard |
Standard Grade |
|
ASTM (USA) |
ASTM A213, A269, A249, A789, A790 |
TP304/L, TP304H, TP316/L, TP316H, TP321/H, TP347/H, TP310S, TP310H |
|
ASME (USA) |
SA213, SA249, SA789, SA790 |
TP304/L/H, TP316/L/H, TP321/H, TP347/H, TP310S, TP310H |
|
EN / DIN (Europe) |
EN 10216-5, EN 10217-7 |
X2CrNi18-9 (1.4307), X2CrNiMo17-12-2 (1.4404), X6CrNiTi18-10 (1.4541), X6CrNiNb18-10 (1.4550), X8CrNi25-21 (1.4845) |
|
JIS (Japan) |
JIS G3463 |
SUS304TB, SUS304LTB, SUS316TB, SUS316LTB, SUS321TB, SUS347TB, SUS310STB |
|
GB (China) |
GB/T 13296, GB/T 14976 |
06Cr19Ni10, 022Cr19Ni10, 07Cr17Ni12Mo2, 022Cr17Ni12Mo2, 06Cr18Ni11Ti, 06Cr25Ni20 |
|
ISO (International) |
ISO 9329-4, ISO 1127 |
X2CrNi18-9, X2CrNiMo17-12-2, X6CrNiTi18-10, X8CrNi25-21 |
|
Element |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
N |
|
TP310S |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.030 |
≤1.50 |
24.0–26.0 |
19.0–22.0 |
≤0.75 |
— |
Note: TP310S (UNS S31008) is a high-temperature austenitic stainless steel grade with the highest chromium and nickel content among standard heat exchanger tube grades. The low carbon version (310S) provides improved weldability and resistance to intergranular corrosion compared to TP310 (0.25% max carbon).
Compared to other heat exchanger tube grades for high-temperature service:
|
Property |
TP304H |
TP321H |
TP347H |
TP310S |
|
Chromium (%) |
18–20 |
17–19 |
17–19 |
24–26 |
|
Nickel (%) |
8–11 |
9–12 |
9–13 |
19–22 |
|
Maximum Continuous Service (°C) |
800 |
800 |
800 |
1050 |
|
Oxidation Resistance |
Good |
Good |
Good |
Excellent |
|
Sulfidation Resistance |
Poor |
Poor |
Poor |
Excellent |
|
Carburization Resistance |
Poor |
Poor |
Poor |
Excellent |
|
Cost |
Low |
Medium |
Medium |
Higher |
Comparison of Maximum Service Temperatures:
|
Grade |
Maximum Continuous Service (°C) |
Maximum Intermittent Service (°C) |
|
TP304/304H |
800°C (1472°F) |
850°C (1562°F) |
|
TP316/316H |
800°C (1472°F) |
850°C (1562°F) |
|
TP321/321H |
800°C (1472°F) |
850°C (1562°F) |
|
TP347/347H |
800°C (1472°F) |
850°C (1562°F) |
|
TP310S |
1050°C (1922°F) |
1100°C (2012°F) |
The TP310S Heat Exchanger Tube offers excellent high-temperature strength and creep resistance, making it suitable for prolonged service at extreme temperatures.
|
Property |
Unit |
TP310S |
|
Tensile Strength (min) |
MPa |
≥515 |
|
Yield Strength (min) |
MPa |
≥205 |
|
Elongation (min) |
% |
≥35 |
|
Hardness (Brinell, max) |
HBW |
≤217 |
|
Density |
g/cm³ |
7.98 |
|
Melting Range |
°C |
1400–1450 |
|
Thermal Conductivity (20°C) |
W/m·K |
14.2 |
|
Thermal Conductivity (500°C) |
W/m·K |
18.5 |
|
Thermal Conductivity (1000°C) |
W/m·K |
23.0 |
|
Coefficient of Thermal Expansion (20–100°C) |
μm/m·K |
15.9 |
|
Coefficient of Thermal Expansion (20–1000°C) |
μm/m·K |
18.0 |
|
Specific Heat Capacity (20°C) |
J/kg·K |
500 |
|
Electrical Resistivity (20°C) |
μΩ·m |
0.78 |
High-Temperature Tensile Properties (Typical Values) :
|
Temperature (°C) |
Tensile Strength (MPa) |
Yield Strength (MPa) |
|
20 |
580–650 |
250–300 |
|
400 |
480–550 |
180–220 |
|
500 |
460–520 |
170–200 |
|
600 |
440–500 |
160–190 |
|
700 |
400–460 |
150–180 |
|
800 |
300–360 |
120–150 |
|
900 |
200–250 |
80–110 |
|
1000 |
120–160 |
50–70 |
Creep Rupture Strength (Typical Values) :
|
Temperature (°C) |
10,000 Hour Stress (MPa) |
100,000 Hour Stress (MPa) |
|
700 |
80–100 |
60–75 |
|
800 |
40–55 |
25–35 |
|
900 |
18–25 |
10–15 |
|
1000 |
8–12 |
4–6 |
Maximum Recommended Service Temperatures:
|
Service Type |
Maximum Temperature |
|
Continuous Service (Oxidizing Atmosphere) |
1050°C (1922°F) |
|
Intermittent Service |
1100°C (2012°F) |
|
Reducing Atmosphere |
900°C (1652°F) |
|
Sulfidizing Atmosphere |
800°C (1472°F) |
|
Minimum Service Temperature |
-196°C (-321°F) |
Critical Note: TP310S is not recommended for service in the sensitization temperature range (425–850°C) if welded without post-weld heat treatment, as chromium carbide precipitation can occur. However, the high chromium content (24–26%) provides better resistance to sensitization than lower chromium grades.
Heat Treatment Condition:
TP310S Heat Exchanger Tubes are solution annealed at 1040–1150°C followed by rapid
cooling (water quenching or rapid air cooling). This heat treatment:
l Dissolves chromium carbides and restores corrosion resistance.
l Relieves internal stresses from cold drawing or cold pilgering.
l Enhances ductility and high-temperature creep resistance.
l Optimizes the microstructure for high-temperature service.
Delivery Condition:
Tubes are normally supplied in solution annealed and pickled condition, providing a
clean, smooth surface and good corrosion resistance. Upon request, bright annealed (BA) finish
can be provided for applications requiring ultra-clean internal surfaces.
Womic Steel adopts advanced production technology to ensure each TP310S Heat Exchanger Tube meets exact specifications with flawless surface quality and precise dimensional accuracy.
· Raw Material Selection: High-quality TP310S stainless steel billets from certified mills (Baosteel, TISCO, POSCO, Outokumpu, Sandvik) with certified chemical composition (high Cr and Ni verification) and traceability.
· Heating and Piercing: Billets heated to a controlled high temperature (due to high alloy content) and pierced using a rotary piercing mill to form hollow shells. Temperature control is critical.
· Hot Rolling: Shells elongated and rolled to desired intermediate size with strict temperature control. High alloy content requires careful reduction rates.
· Cold Drawing / Cold Pilgering: Tubes refined to precise dimensions with improved surface finish. Multiple passes with intermediate annealing required due to high work hardening rate.
· Solution Annealing: Heat treatment at 1040–1150°C to dissolve carbides and restore properties. Performed in controlled atmosphere furnaces for bright annealed finish.
· Pickling & Passivation: Removal of oxides and creation of passive film for enhanced corrosion protection. Special pickling acids may be required for high-chromium grades.
· Straightening and Dimensional Calibration: Ensures consistent roundness, straightness, and wall uniformity. Special attention to OD tolerance for tube sheet fitment.
· Cutting and End Finishing: Tubes cut to precise lengths with square ends, deburred, and prepared for tube sheet insertion.
· Final Inspection & Marking: Each tube tested, marked with grade, heat number, standard, and tube dimensions before packing.
This process guarantees a smooth internal bore, high structural integrity, precise dimensional accuracy, and exceptional high-temperature performance across all batches of Womic Steel’s TP310S Heat Exchanger Tubes.
Womic Steel utilizes state-of-the-art manufacturing technology to ensure every Welded TP310S Heat Exchanger Tube meets precise specifications and delivers excellent surface quality and performance.
1. Raw Material Selection: High-quality TP310S stainless steel strips/coils from certified suppliers with full traceability and high Cr/Ni verification.
2. Slitting & Uncoiling: Precision slitting to required width; edge preparation to ensure clean, burr-free edges for welding.
3. Forming & Welding: The strip is progressively formed into a cylindrical shape. The edges are welded using advanced TIG or Plasma welding with:
4. Appropriate heat input control
5. Shielding gas: Argon (or Ar + He for higher heat input)
6. Matching filler metal (ER310) for optimal weld properties
7. Weld Seam Treatment: External weld bead removal to achieve smooth surface flush with base metal. Internal bead may be controlled or removed.
8. Solution Annealing: Full heat treatment of the entire welded tube at 1040–1150°C followed by rapid cooling – essential for restoring corrosion resistance and relieving weld stresses.
9. Sizing & Calibration: The tube is passed through a sizing mill to achieve final precise OD and roundness.
10.Straightening: The tube is straightened to ensure optimal linearity for tube sheet insertion.
11.Non-Destructive Testing (NDT) : Weld seam inspected using Eddy Current Testing (ECT) or Ultrasonic Testing (UT). 100% of tube length tested.
12.Hydrostatic Testing: Each tube pressure tested to verify leak-tight integrity.
13.Final Inspection & Marking: Complete dimensional check, visual inspection, and traceable marking.
This controlled process guarantees a sound weld seam, excellent dimensional accuracy, smooth internal surface, and superior high-temperature performance for every batch of Womic Steel’s Welded TP310S Heat Exchanger Tubes.
Outside Diameter (OD) : 6.0mm – 114.3mm (1/4″ – 4″)
Common sizes: 12.70mm (1/2″), 15.88mm (5/8″), 19.05mm (3/4″), 25.40mm (1″), 31.80mm (1-1/4″), 38.10mm (1-1/2″), 44.50mm (1-3/4″), 50.80mm (2″), 60.30mm (2-3/8″), 73.00mm (2-7/8″), 88.90mm (3-1/2″)
Wall Thickness (WT) : 0.5mm – 5.0mm (BWG 10 – BWG 22)
Common BWG gauges: 8, 9, 10, 11, 12, 13, 14, 15, 16
For furnace tubes: heavier walls typically required
Length: Up to 30m (straight lengths); U-bent tubes available per customer drawing
OD Tolerances:
Standard: ±0.10mm
Precision: ±0.05mm (upon request)
Wall Thickness Tolerances:
Standard: ±10% of nominal
Precision: ±8% of nominal (upon request)
Straightness: 0.5mm per 1000mm length typical, tighter upon request
Surface Roughness (Internal) :
Standard: Ra ≤ 0.8μm
Bright Annealed: Ra ≤ 0.4μm (upon request)
|
ANSI B 36.19/ANSI B36.10 DIMENSIONS OF SEAMLESS &WELDED STAINLESS STEEL PIPE |
|||||||||||||||||||
|
Nominalsize |
mm |
ANSIB36.19 |
ANSIB36.10ANSIB36.10 |
||||||||||||||||
|
DN |
NPS |
mm |
5S |
10S |
40S |
80S |
10 |
20 |
30 |
STD |
40 |
60 |
XS |
80 |
100 |
120 |
140 |
160XXS |
|
|
6 |
1/8" |
10.29 |
|
1.24 |
1.73 |
2.41 |
|
|
|
1.73 |
1.73 |
|
2.41 |
2.41 |
|
|
|
|
|
|
8 |
1/4" |
13.72 |
|
1.65 |
2.24 |
3.02 |
|
|
|
2.24 |
2.24 |
|
3.02 |
3.02 |
|
|
|
|
|
|
10 |
3/8" |
17.15 |
|
1.65 |
2.31 |
3.20 |
|
|
|
2.31 |
2.31 |
|
3.20 |
3.20 |
|
|
|
|
|
|
15 |
1/2" |
21.34 |
1.65 |
2.11 |
2.77 |
3.73 |
|
|
|
2.77 |
2.77 |
|
3.73 |
3.73 |
|
|
|
4.78 |
7.47 |
|
20 |
3/4" |
26.67 |
1.65 |
2.11 |
2.87 |
3.91 |
|
|
|
2.87 |
2.87 |
|
3.91 |
3.91 |
|
|
|
5.56 |
7.82 |
|
25 |
1" |
33.4 |
1.65 |
2.77 |
3.38 |
4.55 |
|
|
|
3.38 |
3.38 |
|
4.55 |
4.55 |
|
|
|
6.35 |
9.09 |
|
32 |
1 1/4" |
42.16 |
1.65 |
2.77 |
3.56 |
4.85 |
|
|
|
3.56 |
3.56 |
|
4.85 |
4.85 |
|
|
|
6.35 |
9.70 |
|
40 |
1 1/2" |
48.26 |
1.65 |
2.77 |
3.68 |
5.08 |
|
|
|
3.68 |
3.68 |
|
5.08 |
5.08 |
|
|
|
7.14 |
10.16 |
|
50 |
2" |
60.33 |
1.65 |
2.77 |
3.91 |
5.54 |
|
|
|
3.91 |
3.91 |
|
5.54 |
5.54 |
|
|
|
8.74 |
11.07 |
|
65 |
2 1/2" |
73.03 |
2.11 |
3.05 |
5.16 |
7.01 |
|
|
|
5.16 |
5.16 |
|
7.01 |
7.01 |
|
|
|
9.52 |
14.02 |
|
80 |
3" |
88.9 |
2.11 |
3.05 |
5.49 |
7.62 |
|
|
|
5.49 |
5.49 |
|
7.62 |
7.62 |
|
|
|
11.13 |
15.24 |
|
90 |
3 1/2" |
101.6 |
2.11 |
3.05 |
5.74 |
8.08 |
|
|
|
5.74 |
5.74 |
|
8.08 |
8.08 |
|
|
|
|
|
|
100 |
4" |
114.3 |
2.11 |
3.05 |
6.02 |
8.56 |
|
|
|
6.02 |
6.02 |
|
8.56 |
8.56 |
|
11.13 |
|
13.50 |
17.12 |
|
125 |
5” |
141.3 |
2.77 |
3.40 |
6.55 |
9.52 |
|
|
|
6.55 |
6.55 |
|
9.52 |
9.52 |
|
12.70 |
|
15.90 |
19.05 |
|
150 |
6" |
168.28 |
2.77 |
3.40 |
7.11 |
10.97 |
|
|
|
7.11 |
7.11 |
|
10.97 |
10.97 |
|
14.30 |
|
18.20 |
21.95 |
|
200 |
8" |
219.08 |
2.77 |
3.76 |
8.18 |
12.70 |
|
6.35 |
7.04 |
8.18 |
8.18 |
10.30 |
12.70 |
12.70 |
15.10 |
18.20 |
20.60 |
23.00 |
22.22 |
|
250 |
10" |
273.05 |
3.40 |
4.19 |
9.27 |
12.70 |
|
6.35 |
7.80 |
9.27 |
9.27 |
12.70 |
12.70 |
15.09 |
18.26 |
21.44 |
25.40 |
28.58 |
|
|
300 |
12" |
323.85 |
3.96 |
4.57 |
9.52 |
12.70 |
|
6.35 |
8.38 |
9.52 |
10.31 |
14.27 |
12.70 |
17.48 |
21.44 |
25.40 |
28.58 |
33.32 |
|
|
350 |
14" |
355.6 |
3.98 |
4.78 |
|
|
6.35 |
7.92 |
9.52 |
9.52 |
11.13 |
15.09 |
12.70 |
19.05 |
23.83 |
27.79 |
31.75 |
35.71 |
|
|
400 |
16" |
406.4 |
4.19 |
4.78 |
|
|
6.35 |
7.92 |
9.52 |
9.52 |
12.70 |
16.66 |
12.70 |
21.44 |
26.19 |
30.96 |
36.53 |
40.49 |
|
|
450 |
18" |
459.2 |
4.19 |
4.78 |
|
|
6.35 |
7.92 |
11.13 |
9.52 |
14.27 |
19.05 |
12.70 |
23.83 |
29.36 |
34.92 |
39.67 |
45.24 |
|
|
500 |
20" |
508 |
4.77 |
5.53 |
|
|
6.35 |
9.52 |
12.70 |
9.52 |
15.09 |
20.62 |
12.70 |
26.19 |
32.54 |
38.10 |
44.45 |
50.01 |
|
|
550 |
22" |
558.8 |
4.77 |
5.53 |
|
|
6.35 |
9.52 |
12.70 |
9.52 |
15.87 |
22.22 |
12.70 |
28.57 |
34.92 |
41.27 |
47.62 |
53.97 |
|
|
600 |
24" |
609.6 |
5.54 |
6.35 |
|
|
6.35 |
9.52 |
14.70 |
9.52 |
17.48 |
24.61 |
12.70 |
30.96 |
38.89 |
46.02 |
52.37 |
59.94 |
|
|
650 |
26" |
660.4 |
|
|
|
|
7.92 |
12.70 |
|
9.52 |
|
|
12.70 |
|
|
|
|
|
|
|
700 |
28" |
711.2 |
|
|
|
|
7.92 |
12.70 |
15.88 |
9.52 |
|
|
12.70 |
|
|
|
|
|
|
|
750 |
30" |
762 |
6.35 |
7.92 |
|
|
7.92 |
12.70 |
15.88 |
9.52 |
|
|
12.70 |
|
|
|
|
|
|
|
800 |
32" |
812.8 |
|
|
|
|
7.92 |
12.70 |
15.88 |
9.52 |
|
|
12.70 |
|
|
|
|
|
|
Womic Steel offers a range of surface finishes for TP310S heat exchanger tubes, each suited to specific high-temperature and industrial applications.
|
Surface Type |
Description |
Typical Applications |
|
Annealed & Pickled (AP Finish) |
Standard industrial finish – matte, oxide-free after acid treatment. |
Furnace tubes, high-temperature heat exchangers, reformers. |
|
Bright Annealed (BA Finish) |
Mirror-like surface obtained through controlled atmosphere annealing. |
High-purity applications requiring ultra-clean surfaces. |
|
Polished Finish (180#, 240#, 320#) |
Smooth mechanical finish, reduced surface roughness. |
Reduced fouling applications, specialized service. |
|
Passivated Finish |
Surface chemically treated to enhance the protective passive film. |
Critical high-temperature corrosion service. |
Each TP310S Heat Exchanger Tube surface is inspected for uniform appearance, absence of pits, scratches, and consistent finish quality. Internal surface roughness (Ra) can be certified upon request.
Every TP310S Heat Exchanger Tube undergoes comprehensive inspection in accordance with ASTM A213, EN 10216-5, and GB/T 13296 standards:
|
Test / Inspection |
Description |
Applicability |
|
Visual & Dimensional Inspection |
Surface finish, OD, WT, length, roundness, straightness checked. |
100% |
|
Hydrostatic Pressure Test |
100% tested for leakage and pressure resistance. |
100% |
|
Pneumatic Pressure Test |
Air pressure test under water for leak detection (optional). |
Upon request |
|
Eddy Current Test (ECT) |
Detects surface and sub-surface imperfections. |
100% |
|
Ultrasonic Test (UT) |
Ensures internal integrity of tube wall. |
Upon request |
|
Positive Material Identification (PMI) |
Confirms correct chemical grade (Cr 24–26%, Ni 19–22% verification). |
100% (per heat) |
|
Intergranular Corrosion Test (IGC) |
ASTM A262 Practice E – validates resistance to sensitization. |
Per heat / batch |
|
Flattening Test |
Evaluates ductility and deformation capability. |
Per heat / batch |
|
Flaring Test |
Evaluates ability to expand without cracking. |
Per heat / batch |
|
Hardness Testing |
Brinell (HBW) – max ≤217 HBW. |
Per heat / batch |
|
Tensile Testing |
Confirms tensile strength, yield strength, and elongation. |
Per heat / batch |
|
High-Temperature Tensile Testing |
Optional – verifies high-temperature strength. |
Upon request |
|
Surface Roughness Check (Ra) |
For polished or BA tubes – profilometer measurement. |
Upon request |
|
Third-Party Inspection |
SGS / BV / TUV / DNV / LR – witnessed testing. |
Upon customer request |
These extensive tests ensure that every TP310S Heat Exchanger Tube from Womic Steel meets the highest international standards for reliability, high-temperature performance, and longevity.
TP310S Heat Exchanger Tubes are ideal for the most demanding high-temperature applications where other stainless steel grades are inadequate:
|
Industry |
Typical Applications |
|
Petrochemical & Refining |
Furnace tubes, radiant tubes, convection section tubes, cracking furnaces, reformers, pyrolysis furnaces, ethylene cracking furnace tubes. |
|
Heat Treatment Furnaces |
Radiant tubes, muffles, retorts, furnace rollers, annealing furnace tubes, carburizing furnace components. |
|
Power Generation |
Superheater tubes, reheater tubes, boiler tubes for high-temperature sections, heat recovery steam generators (HRSG) – high-temperature zones. |
|
Chemical Processing |
High-temperature heat exchangers, ammonia reformer heat exchangers, methanol reformer tubes, hydrogen production heat exchangers. |
|
Cement Industry |
Clinker cooler heat exchangers, preheater cyclones, kiln components. |
|
Steel Industry |
Heat exchanger tubes for annealing furnaces, pickling line heat recovery, continuous galvanizing line furnaces. |
|
Ceramic Industry |
Kiln furniture, kiln heat exchangers, high-temperature drying systems. |
|
Waste Incineration |
Heat recovery boiler tubes, superheater tubes in waste-to-energy plants, flue gas heat exchangers. |
|
Marine Engineering |
High-temperature exhaust gas heat exchangers, boiler superheaters (ship classification certifications available from ABS, BV, DNV, LR, GL, RINA, CCS, KR, NK). |
|
Hydrogen Production |
Steam methane reformer (SMR) tubes, reformer heat exchangers, high-temperature hydrogen coolers. |
|
Glass Industry |
Glass melting furnace heat exchangers, recuperators. |
Each TP310S Heat Exchanger Tube is securely packed and clearly labeled to ensure safe and efficient transport worldwide.
|
Packaging Type |
Description |
Suitable For |
|
Bundle Packing (Hexagonal) |
Hexagonal bundle with woven fabric wrapping, iron strip bundle, plastic cap on both ends. |
Local truck transport. |
|
Bundle Packing (Square) |
Square bundle with steel straps, plastic end caps, moisture barrier paper. |
Export sea-worthy transport. |
|
Wooden Crate Packing |
Wooden crates with foam padding, individual tube separation, plastic end caps. |
High-value tubes, BA finish, long-length tubes. |
|
Steel Crate Packing |
Reinforced steel crates with internal padding. |
Heavy-wall tubes, multiple-bundle consolidation. |
|
U-Bend Tube Packing |
Custom wooden crates with support saddles to maintain bend radius. |
U-bent heat exchanger tubes. |
· End Protection: Plastic caps on both ends for all tubes
· Moisture Protection: VCI paper or moisture barrier wrapping for sea freight
· Labeling: Grade, heat number, standard, dimensions, PO number
· Documentation: Packing list, material test reports (MTR), inspection certificates
· Direct cooperation with global shipowners ensures the most competitive freight rates.
· Professional loading and securing teams – special care for tube bundles to prevent bending, scratching, and end damage.
· Efficient document preparation – EN 10204 3.1/3.2 certificates, MTR, PMI reports – minimizing customs delays.
· Rapid delivery time – standard sizes kept in ready stock.
· Continuous cargo tracking and after-sales follow-up to ensure smooth arrival at destination.
· Custom length cutting available upon request – up to 30m straight lengths.
· U-bend tube fabrication – custom bending per customer drawing with full heat treatment after bending.
Womic Steel is a trusted manufacturer and exporter specializing in high-temperature stainless steel heat exchanger tubes, committed to delivering premium quality and professional service for extreme heat transfer applications.
1. Strict quality control under ISO 9001, PED 2014/68/EU, and ASME Boiler & Pressure Vessel Code certification.
2. High-temperature grade expertise – specialized knowledge in high-alloy (24–26% Cr, 19–22% Ni) heat treatment and high-temperature performance.
3. Modern production lines – cold pilger mills, TIG welded tube mills, bright annealing furnaces.
4. Complete testing, inspection, and documentation support – including 100% Eddy Current testing, hydrostatic testing, and IGC testing.
5. Exceptional high-temperature performance – continuous service up to 1050°C (1922°F).
6. Superior oxidation and sulfidation resistance – ideal for furnace tubes and high-temperature process heaters.
7. Flexible customization – special OD, WT, length, surface finish (BA, polished), U-bends.
8. Fast production cycle – seamless and welded tube manufacturing with competitive lead times.
9. Reliable global shipping – to all major ports (Houston, Rotterdam, Singapore, Shanghai, Dubai, etc.).
10.Direct mill pricing – no middlemen, ensuring competitive costs.
11.Wide material range – from TP304/304L and TP316/316L to TP321/321H, TP347/347H, TP310S, Duplex 2205, Super Duplex 2507, and nickel alloys.
