Shandong Kuaima  Steel Co., Ltd.



Stainless Steel Tube 4|6|8 Mm Diameter Manufacturer


Product introduction

Product characteristics

4|6|8mm diameter stainless steel pipe is a general purpose stainless steel, widely used to make equipment and machine parts requiring good overall performance (corrosion resistance and formability).
Stainless steel welded pipe, or welded pipe for short, is commonly used as welded steel pipe that is formed from steel or steel strip after unit and die curling. The production process of welded steel pipe is simple, with high production efficiency, many varieties of specifications and low investment in equipment, but the strength is generally lower than that of seamless steel pipe.

Since the 1930s, with the rapid development of high-quality strip steel continuous rolling production and the progress of welding and inspection technology, the quality of the welded seam continues to improve, the increasing variety of welded steel pipe specifications, and in more and more areas, especially in the heat transfer equipment, decorative tubes, low-pressure fluid tubes instead of seamless steel tubes.

Product Characteristics:

One, small diameter stainless steel welded pipe is continuous online production, the thicker the wall thickness, the greater the investment in the unit and dissolving equipment, the less economical and practical it is. The thinner the wall thickness, its input-output ratio will drop accordingly; secondly, the process of the product determines its advantages and disadvantages, general welded steel pipe with high precision, uniform wall thickness, high brightness of the tube appearance (the surface grade of the steel plate determines the surface brightness of the steel pipe), and can be arbitrarily sized. Therefore, it reflects its economy and beauty in high-precision, low and medium pressure fluid applications.

Welding Characteristics:

According to the welding technology can be divided into for automatic welding welding, manual welding. Automatic welding generally uses submerged arc welding, plasma welding, manual welding generally uses argon arc welding.


According to the form of welding seam, it is divided into straight seam welded pipe and spiral welded pipe.

According to the usage, it is divided into general welded pipe, heat exchanger pipe, condenser pipe, galvanized welded pipe, oxygen blowing welded pipe, electric wire casing, metric welded pipe, roller pipe, deep well pump pipe, automotive pipe, transformer pipe, electric welded thin-walled pipe, electric welded special-shaped pipe and spiral welded pipe.


GB/T12770-2002 (Stainless steel welded steel pipe for mechanical structure) It is mainly used for machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical parts and structural parts. Its representative materials are 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, etc.

GB/T12771-2008 (stainless steel welded steel pipe for fluid transportation) Mainly used for the transmission of low-pressure corrosive media. Representative materials are 06Cr19Ni10, 022Cr19Ni10, 06Cr19Ni110Ti, 00Cr17, 0Cr18Ni11Nb, 06Cr17Ni12Mo2, etc.

Weight Calculation Formula:

Commonly used: material 304/304L (diameter - wall thickness) x wall thickness x 0.02491 x length = weight (kg)

Material 316/316L (diameter - wall thickness) x wall thickness x 0.02513 x length = weight (kg)

Unit: kg/m

Product Display

ItemStainless steel welded pipe
Product nameStainless Steel Tube 4|6|8 Mm Diameter Manufacturer
Place of OriginShandong,China




200 Series, 300 Series, 400 Series, 600 Series, etc.


200 Series, 300 Series, 400 Series, 600 Series, etc.


welded, seamless


According to customer requirements


Wire drawing, polishing, etching, etc.



Minimum order quantity



Decoration, petroleum, chemical, medical, light industry, mechanical instrumentation, etc.




ISO、CE etc.

Processing services

Bending, welding, uncoiling, punching, cutting, forming

Payment terms

L/C,T/T,D/P etc. (according to customer needs)

Price Terms



  1. Q: What are your payment terms?
    A: We usually accept T/T in advance, large L/C. If you prefer other payment methods, please discuss.
    Q: What are the delivery terms?
    A: EXW, FOB, CIF, etc.
    Q: What are the packaging terms?
    A: Normally we pack the goods in bundles or coils with rods or straps, we can also pack the goods according to the customer's requirements.
    Q: What is your delivery time?
    A: For stock items we can deliver within 7 days of receipt of deposit. For custom orders, the production time is
    15-30 working days after receipt of deposit.
    Q: Can you produce from samples?
    A: Yes, we can manufacture moulds and jigs to order from your samples or technical drawings.
    Q: If I accept your quality, can I place a sample order? What is your minimum order quantity?
    A: Yes, we can send you samples but you can pay for the courier and our minimum order quantity is 1 tonne.
    Q: How do you guarantee your products?
    A: We accept and support third party inspection. We can also offer a warranty to our customers to ensure quality.
    Q: Where are the ports of shipment?
    A: Tianjin, Xiamen, Ningbo or Shanghai port.
    Q: How can I get a price for the product I need?
    A: If you can send us the material, dimensions and surface, this is the best way so that we can produce it for you to check the quality. If you
    still have any questions, please contact us and we will be happy to help you.
    Q: What other products do you produce?
    A: Stainless steel products, galvanised steel products, colour coated products, alloy steel products, etc.

Material 200 series,300 series,400 series,600 series, etc.
Type Welded
Specification 4.0mm~8.0mm
Section Shape Round,Square,Hexagonal,etc.
Technique Cold Rolled,Hot Rolled,Cold Drawn,etc.
Surface Brushed, Polished, Etched,etc.
Surface Finish 2B,BA,HL,NO.4,8K,Embossed,etc.
Processing Service Bending, Welding, Punching, Cutting, Moulding
Minimum Order Quantity Negotiable

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  • Tel:+86-15954941919
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  • Address:Liaocheng Economic and Technological Development Zone, Shandong Province, China

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