Sifangda (300179) announced on the evening of June 7 that the company intends to acquire an 80% stake in Zhengzhou Huayuan Superhard Materials Co., Ltd., a natural person Gaofu, for 125 million yuan (the initial estimated total amount). The first phase of the equity transfer of 71 million yuan was paid by the company. Among them, the use of the original "composite superhard materials and products R & D center project" raised 20.68 million yuan and over-raised funds of 50.32 million yuan. The second phase of equity transfer is paid by the company's own funds.

The original "Comprehensive Superhard Materials and Products R&D Center Project" plans a total investment of 20.44 million yuan, with a construction period of 2 years. The project has invested a total of 796,800 yuan. As of May 31, 2013, the total balance of the principal and interest of the special account for the raised funds was 20.68 million yuan.

Zhengzhou Huayuan's business scope covers the production and sales of super-hard materials, super-hard tools and products, machine tools and foreign trade import and export business. In 2013-March, the operating income was 7.2 million yuan and the net profit was 1.99 million yuan.

In Petro and chemical industry for flange connections Stud Bolts and Hex Bolts are used.

The quantity of bolts for a flange connection will be given by the number of bolt holes in a flange, diameter and length of bolts is dependent of flange type and Pressure Class of flange.

Stud Bolt length are defined in Asme B16.5 standard. The length in inches is equal to the effective thread length measured parallel to the axis, from the first to the first thread without the chamfers (points). First thread is defined as the intersection of the major diameter of the thread with the base of the point.

1)	Standards:	Based on DIN & ANSI & JIS & IFI and per drwing
2)	Material:	carbon steel, alloy steel, stainless steel
3)	bolt Size:	M4-M42,3/8"--7/8"
4)	bolt Surface:	Plain,Zinc ,HDG,DAC,Geomet
5)	bolt Thread:	UNC, UNF, Metric Thread
6)	bolt Quality control :	ISO 9001
7)	bolt Package :	Small box ,Poly Bag,Carton+Pallet

Grades of Stud Bolts

Below a table with materials and grades for flanges, thread rods (bolts) and nuts, arranged on design temperature, flanges, thread rods and recommended nuts.

DESIGN TEMP.	FLANGES	GRADE THREAD RODS	GRADE NUTS
-195Â° to 102Â°C	ASTM A182 Gr. F304, F304L, F316, F316L, F321, F347	A320 Gr.B8 Class2	A194 Gr.8A
-101Â° to -47Â°C	ASTM A350 Gr.LF3	A320 Gr.L7	A194 Gr.7
-46Â° to -30Â°C	ASTM A350 Gr.LF2	A320 Gr.L7	A194 Gr.7
-29Â° to 427Â°C	ASTM A105	A193 Gr.B7	A194 Gr.2H
428Â° to 537Â°C	ASTM A182 Gr.F11, F22	A193 Gr.B16	A194 Gr.2H
538Â° to 648Â°C	ASTM A182 Gr.F11, F22	A193 Gr.B8 Class1	A194 Gr.8A
649Â° to 815Â°C	ASTM A182 Gr. F304H, F316H	A193 Gr.B8 Class1	A194 Gr.8A
DESIGN TEMP.	FLG'S	GRADE THREAD RODS	GRADE NUTS

Bolts & Nuts

Stud Bolts, Heavy Nuts, Stud Bolts With 2 Nuts, Hex Bolts, 2H HDG Nuts, Galvanized Bolts and Nuts

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