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Basic Specifications
Model NO.
10*20-150*100mm
Grade
300series & 400series
Certification
ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Shape
Square / Rectangular
Surface
Bright / Polished
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Product Description
Supply Welded stainless steel square/rectangular pipe and tube
| Size Range: |
10*20-150*100mm | Wall thick: (0.5mm-50mm) | Length: Max 18 meters |
| Standards: |
ASTM A213, A312, A269, A511, A789, A790, GOST 9941, DIN 17456, EN10216-5, JIS G3459, GB/T13296, etc. |
| Material Grades: |
304, 304L, 304H, 316, 316L, 316Ti, 317L, 310S, 321, 321H, S31803, S32750, 904L, 410, 420, 430, etc. |
| Surface Condition: |
Annealed and pickled, grey white, or polished. |
Common sizes of stainless steel welded square pipe (mm):
| 19*19-2.5 / 19*19-3 | 20*20-2.5 / 20*20-3 | 22*22-2.5 / 22*22-3 |
| 23*23-2.5 / 23*23-3 | 25*25-2.5 / 25*25-3 | 30*30-2.5 / 30*30-3 |
| 35*35-2.5 / 35*35-3 | 38*38-2.5 / 38*38-3 | 40*40-2.5 / 40*40-3 |
| 50*50-2.5 / 50*50-3 | 60*60-2.5 / 60*60-3 | 70*70-2.5 / 70*70-3 |
| 80*80-2.5 / 80*80-3 | 100*100-2.5 / 100*100-3 | 150*150-2.5 / 150*150-3 |
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Key Advantages
High quality cold rolled raw material coils and plates.
Multiple welded pipe lines and precision straightening machines.
High speed cutting and vacuum annealing furnace for quality assurance.
Large production capacity and extensive stock availability.
Customized sizes and lengths accepted.
Added value services: precision cutting, deburring, and beveling.
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Applications & Usage
Our stainless steel welded square pipes are widely used in various industries:
Pressure vessels, electrical appliances, chemical equipment, elevators, sanitary ware, solar energy, precision electronics, catering kitchenware, pipe structures, food machinery, automotive parts, rail transport, nuclear power, and architectural decoration.
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Quality Assurance & Testing
We implement rigorous testing to ensure the highest standards:
Raw Material Guarantee: Spectrum direct-reading tests on all incoming materials.
Process Control: Strict adherence to process charts and expert monitoring.
Comprehensive Testing: Yield Strength, Tensile Strength, Hardness, Flattening, Flaring, Eddy Current, Ultrasonic, Hydrostatic, and Corrosion Testing.
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Packing & Transportation
Packing: In seaworthy wooden cases or in bundles to ensure safe delivery.
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Frequently Asked Questions
What are the main grades available for these pipes?
We offer a wide range of grades including 304, 304L, 316, 316L, 310S, 321, and duplex steels like S31803 and S32750.
Can you provide customized lengths?
Yes, while our standard length is usually 6 meters, we can provide customized lengths up to a maximum of 18 meters.
What surface treatments do you offer?
We provide various surface conditions including annealed and pickled, grey white, and various levels of polished finishes.
How do you ensure the quality of the welded pipes?
Quality is ensured through raw material spectrum analysis, process control, and multiple tests such as Ultrasonic, Eddy Current, and Hydrostatic testing.
What is the minimum order quantity (MOQ)?
The standard MOQ for our welded stainless steel pipe is 1000kgs.
Are your products certified?
Yes, our products comply with international standards and hold certifications such as ISO, RoHS, and MTC (Material Test Certificate).
Campfire Steel
