manufacturer of tool steel, stainless steel, nickel alloy, alloy steel

Hot Work Steel Mandrel Bar For Seamless Tubes

Hot Work Steel Mandrel Bar For Seamless Tubes

Hot Work Steel Mandrel Bar For Seamless Tubes

Hot Work Steel Mandrel Bar For Seamless Tubes

Core component for seamless tubes: Mandrel bars

We deliver mandrel bars of up to 28 m in length and up to 365 mm in diameter to nearly all manufacturers of seamless tubes. A mandrel bar is used to roll a pre-pierced steel billet to produce a tube blank (the preliminary seamless tube).

 

We produce these mandrel bars in-house on one of the largest forging machines as well as on a state-of-the-art rolling mill, including straightening and machining units specifically designed for the mandrel bar long product.

 

We can supply you with mandrel bars made from general-purpose hot work steels and specialty steels tailored to suit the various tube rolling methods and made to withstand individual stresses in the following versions, all in based on your request:

Finish-machined and chrome-plated

Finish-machined and oxidized

Pre-machined, i.e. quenched and tempered, peeled

 

Smelting method

EAF+LF+VD OR +ESR

 

Delivery status and processing purposes.

Tempered after turning or grinding, delivered in black state.

Processing use: cutting.

Forging ratio or rolling ratio ≥ 8 / 1.

Delivery hardness delivery hardness 320-370HB in tempered condition.

 

Grade and chemical composition

Grade C Si Mn Cr Mo V P+S S
1.2344/H13 0.32-0.38 0.70-1.20 0.30-0.60 4.50-5.50 1.00-1.50 0.80-1.20 ≤0.020 ≤0.008

 

Mechanical Properties

Hardness HB Yield Tensile Elongation Reduction Impact KV2
(N/mm2) (N/mm2) (%) (%) (J)
320-370 ≥931 1127-1274 ≥8 ≥25 ≥15

≥20

 

About Us

Founded in 1998, FuShun covers an area of 3000 square meters, annual sales volume of 20000 tons. We are engaged in the manufacture and export of Tool Steel, Nickel Alloy, Stainless Steel and other special steel products…,View more content About Me.

Contact Lists

General Manager: Ms. Florence

info@fushunspecialsteel.com

Get A Free Quote!

Fushun TEL: +86-731-89903933

Fushun FAX: +86-731-89853933

General Manager: Ms. Florence Tang

Whatsapp/Phone/WeChat:+86-13319591838

Find your steel grade and get a quote today.

NOW Send Your Inquiry To : info@fushunspecialsteel.com

Whatsapp:+86-18692275455

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