Stainless Steel Shape
Wuxi xinfutian metal products co., ltd. was established in the 20th century and now is a great manufacturing enterprise that integrates research and development, production, and sales departments. we has several large warehousing bases. we mainly produce stainless steel pipes, plates, coils, rods, pipe fittings, high nickel alloy steel products, high-temperature resistant products, carbon steel, galvanizing products, and also supply OEM&ODM services.
Why Choose US
Our Factory
Our company has a plant area of 5000+ square meters and 20+ product lines. our stocked stainless steel products is about 20000 tons.We have supplied service more than ten years for customers from various regions as africa, europe, and america, etc.
Product Application
All our products are supplied in accordance with DIN/EN, ASTM/ASME, DIN, JIS standards, and our products are widely used in fields such as petrochemical, oil and gas, marine engineering, shipbuilding, boiler heat exchangers, aerospace, environmental protection equipment, mechanical processing, automobiles, hydropower, nuclear power, refrigeration, new energy equipment, etc. at present.
Quality Assurance
Our company has been certified by some internationally renowned certification bodies, and get certifications as ISO9001, TS16949, BVSGS, etc.
Excellent service
If there is a problem with the product, we will take timely measures to solve it. 24 hours online to answer any questions about the product.
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316 Stainless Steel Square TubeThe 316 Stainless Steel Square Tube is a top-grade, austenitic steel tube designed to offer superior strength, durability, and resistance to corrosion. Composed of 16-18% chromium, 10-14% nickel,...read more
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Super Duplex 2507 PipeSuper Duplex 2507 is a high-performance stainless steel alloy known for its superior mechanical properties and resistance to corrosion. Here’s a detailed overviewread more
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Custom Thin Wall Stainless Steel Tube/pipeA seamless stainless steel tube is a tubular component that draws or extrudes a steel blank through a die. Without any joints or welding, a seamless pipe is perfect for applications that require...read more
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304 Round Stainless Steel Pipe /TubeA seamless stainless steel tube is a tubular component that draws or extrudes a steel blank through a die. Without any joints or welding, a seamless pipe is perfect for applications that require...read more
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Seamless Stainless Steel Tube JIS 409L Grade Stainless St...A seamless stainless steel tube is a tubular component that draws or extrudes a steel blank through a die. Without any joints or welding, a seamless pipe is perfect for applications that require...read more
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304L Stainless Steel Pipe/tubeA welded stainless steel tube is produced through roll-forming strips or sheets of stainless steel into a tube shape and then welding the seam longitudinally. Welded tubing can be accomplished...read more
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304L Stainless Steel Welded Steel PipeA welded stainless steel tube is produced through roll-forming strips or sheets of stainless steel into a tube shape and then welding the seam longitudinally. Welded tubing can be accomplished...read more
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Stainless Steel Welded TubeA welded stainless steel tube is produced through roll-forming strips or sheets of stainless steel into a tube shape and then welding the seam longitudinally. Welded tubing can be accomplished...read more
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Seamless Stainless Steel TubeA seamless stainless steel tube is a tubular component that draws or extrudes a steel blank through a die. Without any joints or welding, a seamless pipe is perfect for applications that require...read more
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Hot Rolled Stainless Steel PlateHot rolled steel is steel that has been roll-pressed at very high temperatures—over 1,700˚f, which is above the re-crystallization temperature for most steels. This makes the steel easier to form,...read more
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Hot Rolled Stainless Steel PlateHot rolled stainless steel plate is a flat product obtained after rolling stainless steel slabs at high temperatures. It's well-known for its scaling resistance, strength at high temperatures, and...read more
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Stainless Steel Pipe CastingStainless steel pipe casting, a specialized method of forming stainless steel pipes, involves pouring molten stainless steel into a mold to get a desired shape and size. This process is especially...read more
Types of Stainless Steel Shape
There Are Mainly the Following Types
316 Stainless Steel Square Tube
The 316 stainless steel square tube is a premium product widely used across industries due to its exceptional corrosion resistance, strength, and durability.
Super Duplex 2507 Pipe
Super Duplex 2507 is a high-performance stainless steel alloy known for its superior mechanical properties and resistance to corrosion.
Custom Thin Wall Stainless Steel Tube/pipe
A seamless stainless steel tube is a tubular component that draws or extrudes a steel blank through a die. Without any joints or welding, a seamless pipe is perfect for applications that require high pressure or extreme temperatures because it does not suffer from the stress concentration or weak spots of a welded pipe.
Hot Rolled Stainless Steel Plate
Hot rolled stainless steel plate is a flat product obtained after rolling stainless steel slabs at high temperatures. It's well-known for its scaling resistance, strength at high temperatures, and good weldability, making it pivotal in construction, heavy industry, and transportation.
Seamless Stainless Steel Tube
The seamless stainless steel tube, a robust and versatile material, is made from an alloy that combines elements like iron, carbon, nickel, and chromium. Because it's made without a welded seam, it offers superior pressure resistance and can be used in a variety of heavy-duty applications.
Stainless Steel Cold Rolled Coil
Stainless steel cold rolled coil is versatile and widely used products known for their excellent properties, making them essential in various industries. These coils undergo a cold rolling process, resulting in improved surface finish, dimensional accuracy, and mechanical properties compared to hot rolled coils.
Corrosion Resistance
Chromium is the alloying element that imparts to Stainless Steel their corrosion-resistant qualities. Lower alloyed grades resist corrosion in atmospheric and pure water environments; high-alloyed grades can resist corrosion in most acids, alkaline solutions, and chlorine bearing environments making their properties useful in process plants.
Fire and Heat Resistance
Special high chromium and nickel-alloyed grades resist scaling and retain high strength at high temperatures. Stainless steel has a high melting point, which means it can withstand elevated temperatures without melting or deforming.
Hygiene
Stainless steel tubing has a smooth, non-porous surface that is easy to clean and maintain. It is commonly used in critical applications such as food and beverage processing, pharmaceutical manufacturing, biotechnology, medical devices, and cleanroom environments.
Aesthetic Appearance
The bright easily maintained surface of stainless steel provides a modern and attractive appearance. The availability of various finishes, including brushed, polished, and satin, provides designers with versatility to achieve specific aesthetic effects, ensuring stainless steel tubing's enduring appeal in a wide range of applications.
Strength-to-Weight Advantage
The work-hardening property of austenitic grades results in a significant strengthening of the material from cold-working alone, and the high strength duplex grades, allow reduced material thickness over conventional grades yielding considerable cost savings.
Stainless-Steel Grade Chart
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Designations |
Chemical Composition AISI-Type/SAE & EN Standards (Major elements only) % content is a maximum unless a range is indicated |
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AISI-type/ SAE |
EN |
C, ≤ |
Mn, ≤ |
P, ≤ |
S, ≤ |
Si, ≤ |
Cr |
Ni |
Mo |
N, ≤ |
Other Elements ≤, UOS |
|
Austenitic stainless steel |
302 |
1.4324 |
0.15 |
2.00 |
0.045 |
0.03 |
0.75 |
17.0-19.0 |
8.0-10.0 |
– |
0.10 |
– |
|
303 |
1.4305 |
0.15 |
2.00 |
0.2 |
≥0.15 |
1.00 |
17.0-19.0 |
8.0-10.0 |
– |
– |
– |
|
|
304 |
1.4301 |
0.08 |
2.00 |
0.045 |
0.03 |
1.00 |
18.0-20.0 |
8.0-11.0 |
– |
– |
– |
|
|
304L |
1.4307 |
0.03 |
2.00 |
0.045 |
0.03 |
1.00 |
18.0-20.0 |
8.0-11.0 |
– |
– |
– |
|
|
308 |
1.4303 |
0.08 |
2.00 |
0.045 |
0.03 |
1.00 |
19.0-21.0 |
10.0-12.0 |
– |
– |
– |
|
|
310 |
1.4845 |
0.25 |
2.00 |
0.045 |
0.03 |
1.5 |
24.0-26.0 |
19.0-22.0 |
– |
– |
– |
|
|
316 |
1.4401 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
16.0-18.0 |
10.0-14.0 |
2.00-3.00 |
– |
– |
|
|
316L |
1.4404 |
0.03 |
2.00 |
0.045 |
0.030 |
1.00 |
16.0-18.0 |
10.0-14.0 |
2.00-3.00 |
– |
– |
|
|
317 |
1.4449 |
0.08 |
2.00 |
0.045 |
0.03 |
1.00 |
18.0-20.0 |
11.0-15.0 |
3.0-4.0 |
0.1 |
– |
|
|
321 |
1.4541 |
0.08 |
2.00 |
0.045 |
0.03 |
1.00 |
17.0-19.0 |
9.0-12.0 |
– |
0.10 |
≥ Ti 5×(C+N), ≤ 0.70 |
|
|
347 |
1.4550 |
0.08 |
2.00 |
0.045 |
0.03 |
1.00 |
17.0-19.0 |
9.0-12.0 |
– |
– |
≥ Cb 10 × C, ≤ 1.00 |
|
|
904L |
1.4539 |
0.02 |
2.00 |
0.045 |
0.035 |
1.00 |
19.0-23.0 |
23.0-28.0 |
4.00-5.00 |
0.1 |
Cu 1.00-2.00 |
|
|
Martensitic stainless steels |
409 |
1.4512 |
0.030 |
1.00 |
0.040 |
0.015 |
1.00 |
10.50-12.50 |
– |
6 x (C+N) to 0.65 |
– |
|
|
430 |
1.4016 |
0.12 |
1.00 |
0.04 |
0.03 |
1.00 |
16.0-18.0 |
– |
– |
– |
– |
|
|
430F |
1.4105 |
0.12 |
1.25 |
0.06 |
≥0.15 |
1.00 |
16.0-18.0 |
– |
– |
– |
– |
|
|
444 |
1.4521 |
0.025 |
1.00 |
0.04 |
0.03 |
1.00 |
17.5-19.5 |
1.00 |
1.75-2.50 |
0.035 |
Ti+Cb 0.20+4 × (C+N)-0.80 |
|
|
Martensitic stainless steels |
410 |
1.4006 |
0.08-0.15 |
1.00 |
0.04 |
0.03 |
1.00 |
11.5-13.5 |
– |
– |
– |
– |
|
416 |
1.4005 |
0.15 |
1.25 |
0.06 |
≥0.15 |
1.00 |
12.0-14.0 |
– |
– |
– |
– |
|
|
420 |
1.4021 |
0.15, ≥ |
1.00 |
0.04 |
0.03 |
1.00 |
12.0-14.0 |
– |
– |
– |
– |
|
|
431 |
1.4057 |
0.2 |
1.00 |
0.04 |
0.03 |
1.00 |
15.0-17.0 |
1.25-2.50 |
– |
– |
– |
|
|
440A |
1.4109 |
0.60-0.75 |
1.00 |
0.04 |
0.03 |
1.00 |
16.0-18.0 |
– |
≤0.75 |
– |
– |
|
|
440B |
1.4112 |
0.75-0.95 |
1.00 |
0.04 |
0.03 |
1.00 |
16.0-18.0 |
– |
≤0.75 |
– |
– |
|
|
440C |
1.4125 |
0.95-1.20 |
1.00 |
0.04 |
0.03 |
1.00 |
16.0-18.0 |
– |
≤0.75 |
– |
– |
|
|
Duplex stainless steels |
2205 |
1.4462 |
0.03 |
2.00 |
0.03 |
0.02 |
1.00 |
22.0-23.0 |
4.5-6.5 |
3.0-3.5 |
0.14-0.20 |
– |
|
2304 |
1.4362 |
0.03 |
2.5 |
0.04 |
0.03 |
1.00 |
21.5-24.5 |
3.0-5.5 |
0.05-0.60 |
0.05-0.60 |
– |
|
|
PH |
15-5 PH / 631 |
1.4568 |
0.07 |
1 |
0.04 |
0.03 |
1 |
14.0-15.5 |
3.5-5.5 |
– |
– |
2.5-4.5 Cu; 0.15-0.45 Nb |
|
17-4 PH / 630 |
1.4542 |
0.07 |
1 |
0.04 |
0.03 |
1 |
15.5-17.5 |
3.0-5.0 |
– |
– |
3.0-5.0 Cu; 0.15-0.45 Nb |
|
Stainless Steel Cutting Method

Laser Cutting
High precision with minimal material waste.
Clean cuts with smooth edges, reducing the need for additional finishing.
Suitable for complex shapes and intricate designs.
Can handle a variety of thicknesses and materials.
Cutting Size Range:
Length: 100 mm to 12,000 mm
Width: 100 mm to 3,000 mm
Height: Flat sheets, typically not suitable for 3D objects
Thickness: 0.5 mm to 30 mm (depending on material)
Seam Width: 0.1 mm to 0.4 mm
High Tolerance: ± 0.1 mm
Additional Notable Limits: Laser beam width is typically less than 1 mm, allowing for intricate designs.
Plasma Cutting
Fast cutting speeds, especially for thicker materials.
Can cut electrically conductive metals.
More cost-effective for thicker steel compared to laser cutting.
Versatile in cutting different shapes and contours.
Cutting Size Range:
Length: 50 mm to 6,000 mm
Width: 50 mm to 3,000 mm
Height: Flat sheets and some 3D shapes, limited complexity
Thickness: 1 mm to 50 mm (can go up to 150 mm for specialized plasma systems)
Seam Width: 1.5 mm to 3 mm
High Tolerance: ± 0.5 mm
Piercing Capacity: Plasma can pierce materials up to 40 mm thick without pre-drilling.


Waterjet Cutting
No heat-affected zones, maintaining material integrity.
Can cut virtually any material, including thick metals.
High precision and ability to cut complex shapes.
Environmentally friendly, using water and abrasives.
Cutting Size Range:
Length: 100 mm to 7,000 mm
Width: 100 mm to 4,000 mm
Height: Suitable for both flat and contoured objects
Thickness: 1 mm to 150 mm (up to 200 mm for softer materials)
Seam Width: 0.8 mm to 1.2 mm
High Tolerance: ± 0.1 mm to ± 0.2 mm
Additional Notable Limits: Cutting angle tolerance is typically ± 1 degree for very thick materials.
Flame Cutting
Cost-effective for thick steel sections.
Can cut through very thick materials.
No requirement for electricity, making it suitable for remote sites.
Reliable and simple to use for basic cuts.
Cutting Size Range:
Length: 500 mm to 20,000 mm
Width: 500 mm to 5,000 mm
Height: Primarily for flat, thick plates
Thickness: 6 mm to 300 mm
Seam Width: 2 mm to 6 mm
High Tolerance: ± 1 mm
Heat-Affected Zone: Flame cutting results in a heat-affected zone (HAZ) ranging from 1 mm to 5 mm from the edge of the cut, which may need further processing for certain applications.


Shearing & Slitting
High-speed cutting, ideal for mass production.
Very clean cuts with minimal waste.
Excellent for cutting thin steel sheets and coils.
Minimal material distortion.
Cutting Size Range:
Length: 100 mm to 6,000 mm (depending on coil size)
Width: 20 mm to 2,000 mm (slitting width can be as narrow as 20 mm)
Height: Limited to flat sheets
Thickness: 0.5 mm to 15 mm
Seam Width: 0.1 mm to 0.5 mm (for slitting)
High Tolerance: ± 0.2 mm
Slit Edge Burr: Can range from 0.1 mm to 0.5 mm, depending on material and cutting method.
Electrochemical Cutting
Non-contact cutting method, no heat-affected zones.
Excellent for cutting thin and delicate parts.
No tool wear, leading to consistent quality.
Ideal for hard metals and alloys.
Cutting Size Range:
Length: 10 mm to 1,000 mm (for small, precision parts)
Width: 10 mm to 500 mm
Height: Limited to thin, flat parts or small, precise cuts
Thickness: 0.1 mm to 10 mm
Seam Width: Less than 1 mm
High Tolerance: ± 0.05 mm
Edge Roughness: Electrochemical cutting results in edge roughness of less than 10 microns, making it ideal for delicate and precision applications.

Surface Treatment Methods for Stainless Steel
Process Effect: For carbon steel, polishing improves smoothness but requires protective coatings for corrosion resistance. For alloy steel, it enhances surface uniformity, with passivation or coating recommended for corrosion-prone alloys. For stainless steel, it creates a smooth, reflective surface ideal for aesthetics and industrial use.
Shapes: Flat sheets, tubes, rods, bars, structural sections, plates, complex curved surfaces, angles.
Number: No. 3, No. 4, 1G, 2G, 4G
Process Effect: Carbon steel gets a textured finish but needs protective coatings to prevent rust. Alloy steel gains a satin finish for decorative purposes. Stainless steel results in a matte finish suitable for both decorative and industrial use.
Shapes: Flat sheets, plates, pipes, tubes, rods, bars, square tubing, structural shapes, curved surfaces.
Number: No. 4, No. 5, No. 6, 1J, 2J
Process Effect: Carbon steel is not suitable for passivation, and electroplating or coating is recommended. Alloy steel can benefit from passivation, improving corrosion resistance. Stainless steel passivation removes contaminants and enhances corrosion resistance.
Shapes: Pipes, tubes, fittings, fasteners, complex shapes, sheets, rods, bars.
Number: No. 2B, No. 2D, 2B1, 2B2, 2G
Process Effect: Carbon steel needs protective coatings post-pickling to prevent corrosion. Alloy steel removes oxides and may require passivation for protection. Stainless steel restores its corrosion-resistant layer, improving durability.
Shapes: Pipes, tubes, sheets, plates, coils, structural sections, bars, rods, fittings.
Number: No. 1, No. 2B, No. 1D, 2F, 1G
Process Effect: Carbon steel requires a protective coating after achieving a mirror finish. Alloy steel benefits from the reflective finish but needs corrosion protection. Stainless steel achieves a high-gloss finish, ideal for decorative and functional applications.
Shapes: Flat sheets, tubes, rods, bars, plates, architectural elements, complex surfaces, decorative pieces.
Number: No. 8, SB, 2P, 2R, 3R
Process Effect: Carbon steel needs protection after etching to avoid corrosion. Alloy steel can be etched for both functional and decorative purposes, with post-etching treatments needed. Stainless steel maintains its corrosion resistance while allowing custom designs.
Shapes: Sheets, plates, flat surfaces, tubes, rods, panels, architectural elements.
Number: No. 5, No. 2K, 2E, 2R, 4G
How to Pack Stainless Steel Coil
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Stainless steel coil packaging and loading |
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Packaging |
According to customers' needs, use wrapping paper. If the transpor tation period exceeds 10 days or encoun- ters special climate, we will use waterproof packaging and add plastic fim to prevent moisture, water and rust. |
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Loading |
We use the wooden pallettriangular wood to fix the coiland the steel wire rope to hold on the both side. That can prevent from the crush injury effectively. |

Customized Service
We can meet the needs of you with diversified products which can be customized according to your needs.
Pre-Sales Service
● We will answer your questions online 24 hours a day with fast response time to help you choose products.
● We can meet the needs of you with diversified products which can be customized according to your needs.
● Samples are available.
● Certificates of quality are available.
● If you want to visit our factory, we will certainly accompany you and answer your questions.
After-Sale Service
● If there is a problem with the product, we will take timely measures to solve it.
● If there is something wrong with the goods, we will take the way of refund or compensation.
● 24 hours online to answer any questions about the product.
● We will always keep in touch with you and make regular return visits.
FAQ
We're professional stainless steel shape manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale bulk stainless steel shape in stock here and get free sample from our factory. For price consultation, contact us.
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