Womic Stainless Steel Co., Ltd
321 stainless steel contains titanium stabilizing elements, providing excellent resistance to carbide precipitation and maintaining structural stability in high-temperature environments up to 870°C.
2. Resistance to Intergranular Corrosion
The titanium stabilization prevents chromium carbide formation during welding, ensuring superior resistance to intergranular corrosion.
321 and 321H pipes exhibit excellent weldability and formability, making them suitable for complex piping systems and fabricated equipment.
321H provides improved high-temperature strength and creep resistance, making it ideal for pressure vessels, boilers, and heat exchangers.
The321 / 321H Stainless Steel Pipeproduced by Womic Steel conforms to multiple international specifications used in industrial and pressure applications:
|
Standard |
Description |
Equivalent Grade / Material Number |
|
ASTM A312 / A213 / A269 |
Stainless steel pipes and tubes for general and pressure service |
TP321 / TP321H |
|
EN 10216-5 |
Seamless stainless steel tubes for pressure purposes |
1.4541 (X6CrNiTi18-10) |
|
DIN 17456 / DIN 17458 |
Austenitic stainless seamless tubes |
X6CrNiTi18-10 |
|
JIS G3459 / G3463 |
Stainless steel pipes for heat-resisting service |
SUS321 / SUS321HTB |
|
GB/T 14976 / GB/T 13296 |
Seamless stainless pipes for fluid and boiler use |
06Cr18Ni11Ti |
These standards ensure that321 / 321H Stainless Steel Pipemeet global requirements forchemical composition, mechanical performance, testing, and dimensional accuracy.
Different specifications can be customized according to special requirements.
|
Execution Standard |
Main Standard |
Standard Grade |
|
GB (China) |
GB13296, GB/T14976, GB5310, GB/T21833 |
06Cr19Ni10, 022Cr19Ni10, 06Cr25Ni20, 07Cr17Ni12Mo2, 022Cr17Ni12Mo2, 07Cr19Ni11Nb, 022Cr22Ni5Mo3N |
|
NB (China Petrochemical Standard) |
NB/T 47019.1, NB/T 47019.5, NB/T 47019.6, NB/T 47019.7, NB/T 47019.9 |
06Cr19Ni10, 022Cr19Ni10, 06Cr25Ni20, 07Cr17Ni12Mo2, 06Cr19Ni13Mo3, 07Cr18Ni11Ti, 07Cr18Ni11Nb |
|
ASTM (USA) |
ASTM / ASME SA213,ASTM A249-24, ASTM A269,ASTM A312-24, ASTM A358-24, ASTM A376,ASTM A450,ASTM A511, ASTM B677, ASTM B622, ASTM B626, ASTM B464, ASTM B466,ASTM B677,ASTM A778-24, ASTM A813-24, ASTM A1016-23, ASTM A999-23, ASTM A789-24, ASTM A790-24 |
304 / 304L,304N,TP304H,TP309,TP310S,S 316 / 316L,TP316H,TP316N,TP316LN,TP316Ti, TP317L / 317,321 / 321H, 347 / 347H, S31254 (904L equivalent), S31803 (Duplex), S32205, S32750, S32760, S32404, S32550, S32520, S32900, S39274,UNS N08825, UNS N06625, UNS N10276,Alloy 20, Incoloy 800, Inconel 600, Inconel 690, Hastelloy B2, Alloy 200/201, Hastelloy C22 |
|
ASME (USA) |
SA/SB213, SA268, SA312, SA376, SA789, SA790, SB407, SB423, SB444, SB677 |
TP304/L/H, TP316/L/H/Ti, TP321/H, TP347/H, TP904L, S31254, S31803, S32205, S32750, S32760, N08810, N08825, N08020 |
|
EN / DIN (Europe) |
EN 10216-5, EN 10297-2, EN 10217-7 (2021),EN 10312 |
X2CrNi18-9 (1.4307), X5CrNi18-10 (1.4301), X2CrNiMo17-12-2 (1.4404), X5CrNiMo17-12-2 (1.4401), X6CrNiMoTi17-12-2 (1.4571), X2CrNiMoN22-5-3 (1.4462) |
|
JIS (Japan) |
JIS G3459, JIS G3463 |
SUS304/TP, SUS304LTP, SUS304HTB, SUS316/TP, SUS316LTP, SUS321TP, SUS347TP, SUS310STP |
|
GOST (Russia) |
GOST 9941, GOST 5632 |
08Х18Н10, 12Х18Н10Т, 10Х17Н13М2Т, 03Х17Н14М3, 08Х22Н6Т, 10Х17Н13М2Т, 03Х21Н21М4ГБ |
|
ISO (International) |
ISO 1127, ISO 9329-4 |
X2CrNi18-9, X2CrNiMo17-12-2, X2CrNiMoN22-5-3, X2CrNiMo17-13-3 |
|
Element |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Ti |
|
321 Stainless Steel Pipe |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.00 |
17.0–19.0 |
9.0–12.0 |
≥5×C – 0.70 |
|
321H Stainless Steel Pipe |
0.04–0.10 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.00 |
17.0–19.0 |
9.0–12.0 |
≥5×C – 0.70 |
Both321 and 321H Seamless & Welded Stainless
Steel Pipesdemonstrate excellenthigh-temperature strength
and oxidation resistance.
The addition oftitanium stabilizes the material, preventing
chromium carbide precipitation during welding and improving resistance tointergranular
corrosion.
The321 and 321H Stainless Steel Pipeoffers reliable strength and ductility suitable for forming, welding, and high-temperature service.
|
Property |
Unit |
321 |
321H |
|
Tensile Strength |
MPa |
≥515 |
≥515 |
|
Yield Strength |
MPa |
≥205 |
≥205 |
|
Elongation |
% |
≥40 |
≥40 |
|
Hardness (Brinell) |
HBW |
≤217 |
≤217 |
|
Density |
g/cm³ |
7.93 |
7.93 |
|
Melting Range |
°C |
1390–1440 |
1390–1440 |
Heat Treatment Condition
Both321 and 321H pipesaresolution
annealed at 1040–1100°C followed by rapid cooling.
This treatment:
l Restores corrosion resistance
l Relieves internal stress
l Improves ductility
l Stabilizes the titanium-alloyed structure
This ensures reliable performance inhigh-temperature industrial systems.
321 and 321H Seamless & Welded Stainless Steel Pipe – Delivery Condition
Pipes are normally supplied in annealed and pickled condition, providing a clean, smooth surface and excellent corrosion resistance. Upon request, bright annealed or polished finishes can be provided to meet specific sanitary, aesthetic, or industrial requirements.
Womic Steel adopts advanced production technology to ensure each321 and 321H Seamless Stainless Steel Pipemeets exact specifications and flawless surface quality.
1. Raw Material Selection:High-quality321 and 321HStainless Steel Pipe billets from certified mills (Baosteel, TISCO, POSCO).
2. Heating and Piercing:Billets heated to a controlled temperature and pierced using a rotary piercing mill to form hollow shells.
3. Hot Rolling:Shells elongated and rolled to desired size.
4. Cold Drawing / Cold Pilgering:Pipes refined to precise dimensions and improved surface finish.
5. Solution Annealing:Heat treatment to restore corrosion resistance and ductility.
6. Pickling & Passivation:Removal of oxides and creation of passive film for enhanced corrosion protection.
7. Straightening and Dimensional Calibration:Ensures consistent roundness and wall uniformity.
8. Final Inspection & Marking:Each pipe tested, marked with grade, heat number, and standard before packing.
This process guarantees a smooth internal bore, high structural integrity, and exceptional corrosion resistance across all batches of Womic Steel’s321 and 321HSeamless Steel Pipe.
Womic Steel utilizes state-of-the-art manufacturing technology to ensure every321 and 321HWelded Stainless Steel Pipe meets precise specifications and delivers excellent surface quality and performance.
1. Raw Material Selection:High-quality321 and 321Hstainless steel strips/coils from certified suppliers (e.g., Baosteel, TISCO, POSCO).
2. Slitting & Uncoiling:The steel coil is slit to the required width and uncoiled for feeding into the forming mill.
3. Forming & Welding:The strip is progressively formed into a cylindrical shape and the edges are welded together using advanced TIG or Plasma welding techniques to create a solid weld seam.
4. Weld Seam Treatment:The external weld bead is removed to achieve a smooth surface, and the internal bead may be controlled or treated for bore cleanliness.
5. Solution Annealing:A full heat treatment process is applied to dissolve carbides, restore corrosion resistance, and relieve stresses from welding and forming.
6. Sizing & Calibration:The pipe is passed through a sizing mill to achieve the final precise outer diameter and roundness.
7. Straightening:The pipe is straightened to ensure optimal linearity.
8. Pickling & Passivation:Chemical treatment removes scale and impurities, while promoting the formation of a protective passive oxide layer on the surface, including the weld zone.
9. Non-Destructive Testing (NDT):The weld seam is inspected using methods like Eddy Current or Ultrasonic Testing to ensure integrity and quality.
10. Final Inspection & Marking:Each pipe undergoes dimensional checks, visual inspection, and is marked with grade, heat number, and relevant standards before packaging.
This controlled process guarantees a consistent weld seam, excellent dimensional accuracy, and superior corrosion resistance for every batch of Womic Steel's321 and 321HWelded Steel Pipes.
Outside Diameter:6mm – 1219mm (1/4" – 48")
Wall Thickness:0.5mm – 50mm (SCH 5S – SCH XXS)
Length:Up to 12m(fixed or random)
Tolerances:According to ASTM A999 / EN ISO 1127
|
ANSI B 36.19/ANSI B36.10 DIMENSIONS OF SEAMLESS &WELDED STAINLESS STEEL PIPE |
|||||||||||||||||||
|
公称尺寸 |
外径 |
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 wide range of surface finishes to meet various industrial, sanitary, and decorative applications.
|
321 and 321H Stainless Steel Pipe Surface Type |
321 and 321H Stainless Steel Pipe Description |
|
Annealed & Pickled (AP Finish) |
Bright silver appearance after acid treatment, suitable for industrial piping. |
|
Bright Annealed (BA Finish) |
Mirror-like surface obtained through controlled atmosphere annealing. |
|
Polished Finish (180#, 240#, 320#, 400#, 600#) |
Smooth mechanical finish suitable for decorative and architectural use. |
|
Mirror Polished (8K) |
Ultra-reflective surface ideal for sanitary and high-end design. |
|
Brushed / Hairline Finish |
Satin linear texture for furniture and interior design. |
|
Passivated Finish |
Surface chemically treated to enhance corrosion protection. |
|
Electropolished Finish |
Extremely clean, smooth, and hygienic finish ideal for food and pharmaceutical equipment. |
Each 321 and 321H Stainless Steel Pipe surface is inspected for uniform gloss, absence of pits, and consistent finish quality.
Every321 and 321H Stainless Steel Pipeundergoes comprehensive inspection in accordance with ASTM, EN, and GB standards to guarantee reliability and performance:
l Visual & Dimensional Inspection:Surface, roundness, and thickness checked.
l Hydrostatic Pressure Test:100% tested for leakage and pressure resistance.
l Eddy Current Test:Detects surface and sub-surface imperfections.
l Ultrasonic Test (UT):Ensures internal integrity of the seamless structure.
l Positive Material Identification (PMI):Confirms correct chemical grade of the321 and 321HStainless Steel Pipe.
l Intergranular Corrosion Test (IGC):Validates resistance to sensitization.
l Flattening & Flaring Tests:Evaluate ductility and deformation capability.
l Hardness & Tensile Testing:Confirms mechanical compliance with ASTM standards.
l Surface Roughness and Cleanliness Check:For sanitary or polished tubes.
l Third-Party Inspection (SGS / BV / TUV):Available upon customer request.
These extensive tests ensure that every 321 and 321H Stainless Steel Pipe from Womic Steel meets the highest international standards for reliability and longevity.
321 and 321H Stainless Steel Pipeis widely used in
industries requiringhigh-temperature strength, oxidation resistance,
and resistance to intergranular corrosion.
Thanks to the titanium-stabilized composition,321 stainless steel
pipes maintain structural integrity under high temperature, pressure, and
corrosive operating conditions, making them suitable for a broad range
of industrial systems.
321 Stainless Steel Pipeis commonly used in
petrochemical processing facilities where pipelines operate underhigh
temperatures and corrosive hydrocarbon environments.
Typical applications include:
l Catalytic reforming units
l Hydrocarbon transfer pipelines
l Refinery heater piping systems
l High-temperature process lines
Its resistance tothermal fatigue and carbide precipitationensures long service life in refinery operations.
In chemical plants,321 Stainless Steel Pipeis used for systems exposed toaggressive chemicals and elevated temperatures.
Typical applications include:
l Chemical transport pipelines
l Reaction vessel piping systems
l Acid-resistant processing lines
l Corrosion-resistant piping networks
The titanium stabilization improves resistance tointergranular corrosion in welded chemical systems.
321 and 321H Stainless Steel Pipeis widely used inheat transfer equipmentdue to its excellent high-temperature oxidation resistance.
Common applications include:
l Boiler superheater tubes
l Heat exchanger tubing
l Condenser systems
l Evaporator pipelines
The alloy performs reliably incontinuous thermal cycling environments.
Power plants rely on321 Stainless Steel Pipefor components operating underhigh-pressure steam and elevated temperatures.
Applications include:
l Steam pipelines
l Turbine exhaust systems
l High-temperature pressure piping
l Thermal power plant process lines
The material offers strong resistance tocreep deformation and thermal stress.
In aerospace applications,321 Stainless Steel Pipeis used in systems exposed toextreme heat and oxidation conditions.
Typical uses include:
l Aircraft exhaust manifolds
l Turbine exhaust ducts
l High-temperature engine components
l Aerospace thermal control systems
The alloy maintains mechanical stability inhigh-temperature exhaust environments.
Oil refineries require piping materials capable of withstandinghigh temperature hydrocarbon processing.
Typical applications include:
l Catalytic cracking unit pipelines
l Furnace transfer lines
l Refinery process piping
l High-temperature oil transport systems
321 stainless steel provides excellentthermal stability and corrosion resistance.
In offshore environments,321 Stainless Steel Pipeis used in systems requiring bothtemperature resistance and corrosion resistance.
Applications include:
l Offshore platform piping
l Seawater cooling systems
l Ballast pipelines
l Marine thermal process lines
Pipes can be supplied withship classification certifications such as ABS, BV, DNV, LR, CCS, KR, and NK.
Industrial heating equipment often uses321 Stainless Steel Pipedue to its ability to perform inhigh-temperature furnace environments.
Typical applications include:
l Furnace piping systems
l Heat treatment equipment
l High-temperature gas transfer pipelines
l Industrial heating installations
The titanium-stabilized structure preventsgrain boundary corrosion during prolonged heat exposure.
While304, 316, and 321 stainless steel pipesare all widely used austenitic stainless steels,321 stainless steel pipe provides superior performance in high-temperature environmentsdue to its titanium-stabilized composition.
Understanding the differences between these grades helps engineers select the most suitable material for specific industrial applications.
304 Stainless Steel Pipeis the most commonly used stainless steel grade for general industrial applications. However, when exposed tohigh temperatures and welding processes, 304 may suffer fromcarbide precipitation and intergranular corrosion.
In contrast,321 Stainless Steel Pipe contains titanium, which stabilizes the carbon and prevents chromium carbide formation.
Key advantages of321 stainless steel pipe over 304 include:
l Superior resistance tointergranular corrosion after welding
l Better performance inhigh-temperature environments (up to ~870°C)
l Improved structural stability duringthermal cycling
l Longer service life inhigh-temperature process systems
Therefore,321 stainless steel pipe is often preferred for heat exchangers, furnace equipment, and high-temperature pipelines.
316 Stainless Steel Pipeis well known for its excellentcorrosion resistance in chloride environments, particularly inmarine and chemical applications.
However, when the primary requirement ishigh-temperature stability rather than chloride corrosion resistance,321 stainless steel pipe becomes a better option.
Key differences include:
|
Property |
321 Stainless Steel Pipe |
316 Stainless Steel Pipe |
|
Main Alloy Feature |
Titanium stabilized |
Molybdenum alloyed |
|
High Temperature Resistance |
Excellent |
Moderate |
|
Intergranular Corrosion Resistance |
Excellent after welding |
Good |
|
Chloride Corrosion Resistance |
Moderate |
Excellent |
|
Typical Applications |
Furnace systems, aerospace, heat exchangers |
Marine pipelines, chemical processing |
For applications involvinghigh-temperature exhaust systems, thermal processing equipment, and refinery heaters,321 stainless steel pipe is often the preferred material.
321 stainless steel pipe is recommended when:
l The operating temperature exceeds500°C
l Welding is required inhigh-temperature systems
l Equipment is exposed tothermal cycling
l Resistance tointergranular corrosionis critical
Typical applications include:
l Furnace piping
l Heat exchanger tubing
l Aerospace exhaust systems
l Petrochemical process equipment
l Boiler and superheater tubing
Each321 and 321HStainless Steel Pipe is securely packed and clearly labeled to ensure safe and efficient transport worldwide.
General packaging: Bundle packing with woven fabric, iron strip bundle, plastic cap on two ends for local truck transport.
Hexagonal packaging: Bundle packing with woven fabric, iron strip bundle, plastic cap on two ends for local truck transport.
Packaging of welded pipe in medium and large sizes: Wrapped with woven fabric by automatic packaging for export sea-worthy transport.
Packaging for medium and large size welded pipes to be exported: Wooden or steel crate packaging for export sea-worthy transport.
General packaging for products to be exported: Wooden box for export sea-worthy transport.
Packaging of condensation pipe and low-pressure heater tube: Wooden box for local truck and export sea-worthy transport.
1. Direct cooperation with global shipowners ensures the most competitive freight rates.
2. Professional loading and securing teams guarantee damage-free shipment.
3. Efficient document preparation, minimizing customs delays.
4. Rapid delivery time — standard sizes kept in ready stock more than 10,000tons.
5. Continuous cargo tracking and after-sales follow-up to ensure smooth arrival at destination.
Womic Steel is a trusted manufacturer and exporter specializing in321 and 321H Stainless Steel Pipe,committed to delivering premium quality and professional service.
l Strict quality control under ISO and PED certification.
l Modern production lines and experienced technicians.
l Complete testing, inspection, and documentation support.
l Flexible customization and surface finishing options.
l Fast production cycle and reliable global shipping.
For inquiries, technical support, or to request a quotation for your specific clad pipe requirements, please contact us:
Website: www.womicstainless.com
E‑mail: info@womicstainless.com
Tel / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Your reliable partner for high‑quality stainless steel seamless pipes, metallurgically bonded clad tubes, and custom solutions for corrosion‑resistant applications.
