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  • 2020-08-25

    Round hollow bar – 30 years’ manufacturing experience

 

Think of seamless round hollow bar; think of LAWAI simultaneously

For many people, centrifugal casting is an unfamiliar technology.  But, mentioning the round hollow bar, everyone has the concept in their minds. 

There are two ways to manufacture round hollow bar.  The first one is we drill the center of the solid bar to form the round hollow bar.  The other one is we manufacture the round hollow bar by centrifugal casting technique.  The liquid metal is poured into the mold and the mold is rotated by the high speed.  The centrifugal force pushes the liquid metal to the inside mold.  After the solidification, the round hollow bar with the fine and dense structure is formed.  LAWAI just produces the round hollow bar by centrifugal casting technique.

 

When customers need the round hollow bar with the larger inside diameter, it will increase the costs of the time and machining once purchasing the round solid bar to drill the center of it.  It’s also not environmental-friendly if the unwanted chips are not recycled in a proper way.

Therefore, using centrifugal casting technique to produce the round hollow bar is a good way to avoid the increasing costs stated above.

 

The round hollow bar is also one-piece constructed, so it is seamless. The strength of mechanical properties is high compared with the seam tube.  And the length of the round hollow bar could be cut to the right size customer requires. 

 

In addition to stainless steel round hollow bar, we also supply special alloy round hollow bar

LAWAI does not only produce common stainless steel round hollow bar including 304, 316, 316L…etc, but also manufacture higher grade materials.

 

For the harsh environment, customers would select higher grade stainless steel such as duplex stainless steel for resisting corrosion.  If the working environment is at the high temperature for a long period of time, customers will be able to choose heat-resistant round hollow bar.  If considering the creep problem, superalloy round hollow bar will be the one you could use.

We manufacture various round hollow bars by centrifugal casting, yet the main materials we focus are stainless steel, heat-resistant alloys, superalloys and Ni-resist alloys.

If you need medium to larger size round hollow bar, centrifugal casting is satisfied definitely.  However, the diameter of round hollow bar is smaller than 50mm, we could confront the difficulties. 

 

The size of round hollow bar -  customization

Diameter: larger than 50mm

LengthSmaller than 3600mm

 

300 series stainless steel round hollow barmanufactured by centrifugal casting technique

AISI spec.

ACI spec.

EN/DIN spec.

304 round hollow bar

CF8 round hollow bar

1.4308 GX6CrNi189 round hollow bar

304L round hollow bar

CF3 round hollow bar

1.4306 X2CrNi19-11 round hollow bar

316 round hollow bar

CF8M round hollow bar

1.4408 GX6CrNiMo18-10 round hollow bar

316L round hollow bar

CF3M round hollow bar

1.4404/1.4409 X2CrNiMo17-12-2 round hollow bar

310S round hollow bar

CK20 round hollow bar

 

347 round hollow bar

CF8C round hollow bar

1.4552, GX5CrNiNb18-9 round hollow bar

317 round hollow bar

CG8M round hollow bar

1.4408 GX6CrNiMo18-10 round hollow bar

317L round hollow bar

CG3M round hollow bar

 

Nitronic 60 round hollow bar

CF10SMNN round hollow bar

 

Nitronic 50 round hollow bar

CG6MMN round hollow bar

 

20Cb3 round hollow bar

CN7M round hollow bar

 

309 round hollow bar

CH20 round hollow bar

 

CE20N round hollow bar

CD20N round hollow bar

 

 

Nitronic 33 round hollow bar

 

 

Nitronic 40 round hollow bar

 

 

CN7MS round hollow bar

 

AL6XN round hollow bar

CN3MN round hollow bar

 

254SMO round hollow bar, F44 round hollow bar

CK3MCuN round hollow bar

 

 

 400 series stainless steel round hollow bar manufactured by centrifugal casting technique

AISI spec.

ACI spec.

EN/DIN spec.

410 round hollow bar

CA15 round hollow bar

1.4008 GX8CrNi13 round hollow bar

416 round hollow bar

416 round hollow bar

 

420 round hollow bar

CA40 round hollow bar

1.4027 GX20Cr14 round hollow bar

420F round hollow bar

CA40F round hollow bar

 

431 round hollow bar

431 round hollow bar

1.4059 GX22CrNi17 round hollow bar

13-4 round hollow bar, F6NM round hollow bar

CA6NM round hollow bar

1.4313 GX5CrNi134 round hollow bar

 

440A round hollow bar

 

 

440B round hollow bar

 

 

 Duplex stainless steel round hollow barmanufactured by centrifugal casting technique

Forging spec.

ACI spec.

EN/DIN spec.

 

CD4MCu round hollow bar

 

2205 round hollow bar, F51 round hollow bar

CD3MN round hollow bar

1.4470 GX2CrNiMoN22-5 round hollow bar

Ferralium255 round hollow bar

CD7MCuN round hollow bar

 

 

CD4MCuN round hollow bar

 

 

DPX-1B MOD round hollow bar

 

2507 round hollow bar, F53 round hollow bar

CE3MN round hollow bar

1.4469 GX2CrNiMoN26-7 round hollow bar

 

CE8MN round hollow bar

 

 

CD3MWCuN round hollow bar

 

 

Precipitation hardening round hollow barmanufactured by centrifugal casting technique

Forging spec.

ACI spec.

EN/DIN spec.

17-4PH round hollow bar

CB7Cu-1 round hollow bar

1.4540 GX4CrNiCuNb16-4 round hollow bar

15-5PH round hollow bar

CB7Cu-2 round hollow bar

 

 

Heat-resistant round hollow barmanufactured by centrifugal casting technique

LAWAI ALLOY

JIS spec.

HD round hollow bar

SCH11 round hollow bar

HE round hollow bar

SCH17 round hollow bar

HF round hollow bar

SCH12 round hollow bar

HH-2 round hollow bar

SCH13 round hollow bar

HI round hollow bar

SCH18 round hollow bar

HK round hollow bar

SCH21 round hollow bar

HK-40 round hollow bar

SCH22 round hollow bar

HL round hollow bar

SCH23 round hollow bar

HN round hollow bar

 

HP round hollow bar

SCH24 round hollow bar

HT round hollow bar

SCH15 round hollow bar

HU round hollow bar

SCH20 round hollow bar

HW round hollow bar

 

HX round hollow bar

 

 

 Nickel-based hollow bar / Superalloy round hollow bar (manufactured by centrifugal casting technique

Forging spec.

ACI spec.

50Cr-50Ni+Cb round hollow bar

50Cr-50Ni+Cb round hollow bar

INCONEL 625 round hollow bar

CW6MC round hollow bar

INCONEL 600 round hollow bar

CY40 round hollow bar

Hastelloy B2 round hollow bar

N12MV round hollow bar

Hastelloy C276 round hollow bar

CW-12MW round hollow bar

Hastelloy B2 round hollow bar

N7M round hollow bar

Hastelloy C4 round hollow bar

CW2M round hollow bar

Hastelloy C22 round hollow bar

CX2MW round hollow bar

Hastelloy X round hollow bar

Ni-X round hollow bar

Nickel 200 round hollow bar

CZ100 round hollow bar

 

Ni-resist round hollow bar (manufactured by centrifugal casting technique)

LAWAI ALLOY

ACI spec.

Ni-resist 1 round hollow bar

Type 1 round hollow bar

 

 

LAWAI INDUSTRIAL CORPORATION

No.1283-1, Ren-ai Road, Chunan Township, Miaoli County, Taiwan

886-3-6581116

[email protected]

www.lawai-alloytube.com