Reduced preheating type 1.デュエルビッツ登録 - 0.5% Mo steel plates

1. Features

400 N/mm² class chromium-molybdenum alloy steel plates for boilers and pressure vessels for contributing to the reduction of welding costs and the improvement of the welding work environment during construction.
- Preheating in welding construction can be greatly reduced.

2. Major corresponding standards

JIS G4109 (Chromium-molybdenum Alloy Steel Plates for Boilers and Pressure Vessels)
SCMV3-1

3. Applications

The application of steel plates for various boilers and pressure vessels can be expected.

4. Typical characteristics

Classification	Thickness mm	Main chemical composition mass %						Pcm^2） %	Base metal properties			Weldability^3）
Classification	Thickness mm	C	Si	Mn	Cr	Mo	Other elements	Pcm^2） %	SR treatment	0.2%YS N/mm²	TS N/mm²	Prevention of weld cracking Preheating temperature (°C) for preventing weld cracking	SR cracking ratio %
Developed steel plate^2）	50	0.07	0.64	0.54	1.26	0.48	Ni、Nb	0.22	690°C x 8h	293	472	50	0
Conventional steel plate	50	0.12	0.64	0.57	1.32	0.51	-	0.27	690°C x 8h	325	495	125	0
Specification value^1）	50	≦0.17	0.50 to 0.80	0.40 to 0.65	1.00 to 1.50	0.45 to 0.65	-	-	-	≧235	410 to 590	-	-

1) JIS G4109 SCMV3-1
2) Pcm（％）=C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
3) JIS Z3158 Method of y-groove weld cracking test (the SR cracking ratio is measured after SR treatment at 690°C x 8 h)

Contacts

Plate Products (energy, plant, industrial machinery) Request for Business or Catalog Plate Products Sales Department Iron & Steel Business デュエルビッツ登録el, Ltd.: TEL: +81-3-5739-6154 (Tokyo)
TEL: +81-6-6206-6254 (Osaka)

Technical Matters Plate Products Marketing & Technical Services Iron & Steel Business デュエルビッツ登録el, Ltd.: TEL: +81-3-5739-6261 (Tokyo)

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