The Standard Of The Flange

Mention 304 stainless steel flange do not know if we know something about it, but now the domestic market demand for 304 stainless steel flange is increasing, making all kinds of 304 stainless steel flange manufacturers also welcome the trend. But no matter any production plant has to be in strict accordance with the production standards to produce, maybe we are not very clear about the 304 stainless steel flange standard, now let's go to understand the 304 stainless steel flange standard, it will be helpful for future purchase.

304 stainless steel flange introduction

304 stainless steel flange is a kind of more universal stainless steel, it is widely used in the production of equipment and parts requiring good comprehensive performance (corrosion resistance and molding). 304 stainless steel is a grade of stainless steel produced according to ASTM standards in the United States. 304 is equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 contains 19% chromium and 9% nickel. 304 is the most widely used stainless steel, heat resistant steel. Used for food production equipment, Xitong chemical equipment, nuclear energy, etc.

304 stainless steel flange and other materials of the same type of flange, common are: 1, flat welding flange (flat plate flange) must be inserted into the flange inner ring welding flange. 2, flange flange (English name: weldingneck flange) used in a flange with neck, flange which has smooth flange flange, flange connected to the tube. 3, socket welding flange (English name: socket welding flange) flange with socket flange, which is connected to the pipe for socket welding.

304 stainless steel flange standard

Specifications: C Si Mn P S Cr Ni(nickel) Mo304≤0.08≤1.00≤2.00≤0.05≤0.03 18.00-20.00 8.25~10.50

Pressure class: 0.25Mpa ~ 250Mpa(150Lb ~ 2500Lb)

Common standards:

National standard: GB9112-88(GB9113·1-88 ~ GB9123·36-88)

American Standard: ANSI B16.5, ANSI 16.47 Class150, 300, 600, 900, 1500(TH, LJ, SW)

JIS 5K, 10K, 16K, 20K(PL, SO, BL)

German Standard: DIN2527, 2543, 2545, 2566, 2572, 2573, 2576, 2631, 2632, 2633, 2634, 263

8(PL, SO, WN, BL, TH)

Domestic and international standards 304 stainless steel flange

Content Label: HG20592, stainless steel flange, GB flange, flange of chemical industry Department, flange of mechanical department,

National standard: GB9112-88(GB9113·1-88 ~ GB9123·36-88)

Mechanical standards: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94 flat welding flange

Chemical industry standard: HG20592-97(HG20593-97 ~ HG20614-97) European system for welding flange chemical industry standard: HG20615-97(HG20616-97 ~ HG20635-97)

American system flange cover chemical industry standards: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91

Ministry of Petroleum and Chemical Industry Standard: SH3406-1996

Pressure vessel flange standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000

304 stainless steel application range

304 stainless steel flange is the most widely used chromium-nickel stainless steel, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Corrosion resistance in the atmosphere, if it is industrial atmosphere or heavily polluted areas, it is necessary to clean in time to avoid corrosion. Suitable for food processing, storage and transportation. It has good machining performance and weldability. Plate heat exchanger, bellows, household products, building materials, chemistry, food industry, etc.

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