• Lianyungang Dapu Metal Material Co., Ltd
    Wanki Rene
    The quality of this batch of stainless steel plates is very good, and we have applied them to construction.
  • Lianyungang Dapu Metal Material Co., Ltd
    Adu Baffour
    I have received the copper plate. Smooth surface. copper content is 99.5%. Tested qualified!
  • Lianyungang Dapu Metal Material Co., Ltd
    Maboh Derrick Achiri
    I really like your company's seamless pipes. Best price, best materials. Thank you for your service
Contact Person : Olivia
Phone Number : +8619963565580
Whatsapp : +8619963565580

AISI 431 420 330 316ti Perforated Stainless Steel Pipe Tube Round 20mm 9mm Polish

Place of Origin Jiangsu,CHINA
Brand Name DP Steel
Certification MTC,CE 3.1
Model Number 431 420
Minimum Order Quantity 1Ton
Price US$ 1080-1980/Ton
Packaging Details Standard Seaworthy Package
Delivery Time 7-15Days
Payment Terms T/T(30% Deposit+70% Balance)
Supply Ability 150 tons/month

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Whatsapp:0086 18588475571

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Product Details
Product Name AISI 431 420 Stainless Steel Round Pipe Tube Length 2.1-4.6m
Outer Diameter 15-620mm Thickness 0.6mm-120mm
Standard ASTM,DIN,GB Steel Grade 400 Series
Welding Line Type Seamless Technique Hot Rolled
Surface Polishing,Bright Shape Round/Square/Rectangular/Oval
High Light

perforated stainless steel pipe tube


330 stainless steel pipe


316ti stainless steel pipe

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Product Description
AISI 431 420 Stainless Steel Round Pipe Tube 20mm 9mm Polish

Stainless steel 431 is a high chromium-low nickel grade that offers excellent corrosion resistance combined with superior heat resistance and strength. It has the highest corrosion resistance of all martensitic stainless steels and can be used in temperatures up to 870°C (1600°F). Its high tensile strength makes it ideal for heavy-duty applications such as valves, fasteners, and marine components. The main disadvantage of using 431 is that it is unsuitable for welding due to its high carbon content.
One of the primary benefits of 431 stainless steel is that it is more resistant to corrosion than 316 stainless steel. This is due to the higher chromium content in 431 stainless steel, which forms a protective oxide layer on the metal’s surface that helps prevent corrosion.


AISI 431 420 Stainless Steel Round Pipe Tube 20mm 9mm Polish
Steel grade
200/300/400 series

ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605,
304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,
hot rolled and cold rolled
stainless steel round pipe/tube

Wall thickness
Outer diameter
6mm-2500mm (3/8"-100")
Delivery time
Prompt delivery or as the order quantity.
Standard export seaworthy package,or as required.

Widely used in petroleum,foodstuff,chemical industry,construction, electric power,nuclear,energy,machinery,biotechnology,paper
making,shipbuilding,boiler fields.
Pipes also can be made according to the customer's required.

AISI 431 420 330 316ti Perforated Stainless Steel Pipe Tube Round 20mm 9mm Polish 0

Company Profile:
Our company is a set of production, processing, trade, sales in one of the large enterprises. We specialize in Stainless Steel Sheets or Plates, Stainless Steel Coils or Strips, Stainless Steel Pipes or Tubes, Stainless steel Bar, etc with remarkable quality and best prices.
Our company has own factory, professional processing equipment , all kinds of surface processing, plasma cutting, water cutting, leveling machine, slicing machine. Since its establishment, Also,we can process special sizes for our customers, because we have completely processing equipment, professional technical workers and engineer.
AISI 431 420 330 316ti Perforated Stainless Steel Pipe Tube Round 20mm 9mm Polish 1
Packing and shipping:

Products covered with boards are used for transportation protection.

All products will be packed in solid wooden packaging.

Each carton with good support and reinforcement.

Take photos of container loading and seal the container.

Fast transportation speed. Let the customer know every step.




Q1. What are your company's main products ?
A1: Our main products are stainless steel, carbon steel , galvanized and Aluminum products and etc.
Q2: Are you a manufacturer?
A:Yes, we are manufacturers. We have our own factory and our own company. I believe we will be the most suitable supplier for you.
Q3: Can we visit your factory?
A: Sure, we welcome you to visit our factory , check our production lines and know more about our strength and quality.
Q4: Do you have quality control system?
A: Yes, we have ISO, BV, SGS certifications and our own quality control laboratory.
Q5: How do you ship the goods and how long does it take to arrive?
A: For samples, We usually deliver by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive.Airline and sea shipping also optional. For mass products, ship freight is prefered.