ASTM A519 4130 / 4140 Hot / Cold Carbon Seamless Steel Tubing Finished OD1/2'-48'​

ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties. The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified.

Stamdard: ASTM A519

Main steel grades: 4130,4140

Application: A519 seamless tubing is commonly used in applications requiring machining, heat treating, close tolerances, smooth finishes, and/or definite physical properties.

Chemical Requirements & Mechanical Proterties:

Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.

Mark: As required.

Delivery status: Annealed, normalized, normalized+Tempered, etc.

End: plain end, beveled end, threaded

End protection: plastic caps

Packing: Exporting package/wooden box /as requirement.

Supply Ability:40000Pieces / per Month
Packaging & Delivery
Packaging Details:Generally plywooden case or following customer's requirement.
Port:Shanghai/Tianjin

Commerce Clause

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1. One-Stop Service,One Single Source.
2. No MOQ.
3. Best quality,competitive price
4. Fast Reply.
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FAQ

Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing of Large-size products.(View Mor)
Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce based on your drawings.
Q3: Will my drawing be e after you get it?
A3: Yes, we will not release your design to third party unless with your permission.
Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.
Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to ensure quality standard, but it’s charged according to your drawing.

BoYue Industrial (Shanghai)Co., Ltd. is a professional, young and dynamic enterprise. Adhering to the concept of “survival by quality, development by innovation, cooperation by service”, we provide customers with reliable quality, reasonable price and stable delivery time.

Our main products include steel plate series, pipe series, pipe fittings series, flange series and other related products.

We have a complete sales team, technical team, after-sales service team and large and reliable supply factory, all kinds of certificates. Make sure you get the most reliable products, the most professional technical support and attentive service.

We welcome friends from all over the world to visit our company.

In order to comply with the global modernization services development trends and eliminating the varieties distress of the global enterprise‘s purchase in the consumables, which especially BoYue in products. We coordinate the pressure pipe manufacturer which with the scale of production, quality control and high cost performance (has passed ISO 9001 quality series attestation, ccs, DNV,PED/97/23/EC,AD2000-WO, special equipment manufacturing license,ASME-SA182,) through a variety of effective assort mechanism to make up the shortage of supply and Post-processing of VAT enterprise, and to supply high quality pipe fittings, because of the superior quality and good service, we have established long term business cooperation with more than 30 countries and areas,which covers Europe, Africa, South America, North America, Middle East, Taiwan and South East Asia and so on.

With many years effort and support from our valuable customers, these products have obtained a big market share in the world. Our business principle is "Superior quality, Competitive price, Timely delivery and Considerate service " Standing to the principle of “Enterprises focus on the core business”, we will actively promotes the globalization of business strategy approach, using advanced supply chain management technology to service for clients with higher quality and more competitiveness ‘ s products. At the same time, we sincerely reply your inquiry, honesty waiting for your visiting and wish to have cooperation with you at the any time. We welcome all the customers to contact us for more information. We assure you, with our technical knowledge and experience, our company will be one of your Stable, Continuate business partner in China!

Our main products as follows:

Stainless steel pipe & tube

(seamless pipe / welded pipe / square pipe / rectangular tube,duplex stainless / inconel tube)

Carbon / alloy steel pipe & tube

(seamless pipe / ERW / SSAW / LSAW / UOE / hollow section pipe / Galvanized Pipe)

Tubing and casting

(line pipe,water pipeline,gas pipeline,oil pipeline)

Special steel tube

(copper tube/titanium tube/aluminium tube/nickel alloy )

Flange

(DIN flange/ AISI flange/blind flange/welding flange/stainless flange/slip on flange)

steel sheet / coil

(stainless steel/carbon steel/alloy steel/galvanized steel/aluminium )

Valve

(ball valve/gate valve/butterfly valve/globe valve/swing check valve/ check valve)

About BoYue Flange:

Cooperation company

Third Party Partner