• About Nakajima Steel Pipe
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  • Corporate Outline and History
  • Business Sites

Business Sites

Offices

Osaka Head Office

Breezé Tower, 2-4-9 Umeda, Kita-ku, Osaka City, Osaka 530-0001, Japan
Tel +81-6-6341-1311   Fax +81-6-6341-0311

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Tokyo Head Office

Shin-Otemachi Building, 2-2-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel +81-3-3243-1531    Fax +81-3-3243-1536

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Nagoya Office

Nagoya Dia Building, 3-16-22 Meieki, Nakamura-ku, Nagoya City, Aichi 450-0002, Japan
Tel +81-52-569-1603    Fax +81-52-569-2603

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Manufacturing Sites

Tenryu-gawa Factory

Tenryu-gawa Factory

AsabaMukaiyama, Fukuroi City, Shizuoka, Japan

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Facility

1. Manufacturing facility for hot formed square structural hollow sections
We apply the hot formed process to completely form steel pipes that had been formed by either roll or press processing. Also, we manufacture the world’s largest hot formed square structural hollow sections with an outside diameter of 800 mm and thickness of 70 mm.

Production capacity: 60,000 tons/year
Products: Super Hot Column SHC, SHCK, EN10210
Product size: outside diameter: 200–800 mm; thickness: 6–70 mm

2. Manufacturing facility for roll forming square structural hollow sections
Here we continuously process welded tubes made from steel coils or plates through electric resistance welding (ERW) into square sections to produce cold formed welded structural hollow sections. The facility’s 26-inch ERW mill is one of the world’s largest.

Production capacity: 240,000 tons/year
Products: N Column BCR, STKR, EN10219
Product size: outside diameter: 250–550 mm; thickness: 9–22 mm

Omaezaki Factory

Omaezaki Factory

6179 Minato, Omaezaki City, Shizuoka, Japan

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Facility

Manufacturing facility for press forming square structural hollow sections
The facility presses plates into square sections or a pair of channel sections and welds joints through a fully automated process of submerged arc welding (SAW) to produce cold formed welded square structural hollow sections.
The factory is capable of manufacturing square structural hollow sections of up to 1,000 mm × 70 mm.

Production capacity: 84,000 tons/year
Products: N Column: BCP, NBCP325EX, NBCP440, NBCP385
Product size: outside diameter: 450–1,000 mm; thickness: 16–70 mm

Kuzuryu-gawa Factory

Kuzuryu-gawa Factory

14 Sadamune, Sakai City, Fukui, Japan

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Facility

Manufacturing facility for press formed square structural hollow sections
The facility presses plates into square sections or a pair of channel sections. It also welds joints through a fully automated process of submerged arc welding (SAW) to produce cold formed welded square structural hollow sections.

Production capacity: 12,000 tons/year
Products: N Column: BCP
Product size: outside diameter: 350–1,000 mm; thickness: 16–40 mm

Hamaoka Factory

Hamaoka Factory

8171 Ike-Shinden, Omaezaki City, Shizuoka, Japan

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Facility

Machining facility for cutting and grooving
Here we cut and groove hot formed square structural hollow sections and cold formed welded square structural hollow sections.

Processing capacity: 84,000 tons/year
Processing size: outside diameter: 250–1,000 mm; thickness: 6–70 mm