Tianjin JiChengDaDuo steel trading Co., LTD. 
304 in China Cr19Ni9 (equivalent to 0 0 Cr18Ni9) stainless steel. 304 containing cr, including nickel 9% 19%. 304 is the most widely used by the stainless steel, heat-resistant steels. Used in food production equipment, yesterday the chemical industry equipment, the nuclear etc. 304 stainless steel chemical ingredients specifications C Si Mn P S Cr Ni (Ni) more than more than 1.00 0.08 Mo SUS304 more than 2.00 0.05 0.03 more than more than 18.00 20.00 8.25 ~ 10.50-steel tube points and welded tube seamless steel tube (have) two kinds big. According to section shape and can be divided into the pipe and profile tubes, widely used is round steel tube, but also have a few square, rectangle, hemicycle, hexagon, triangular, octagonal shaped steel pipe, etc. Under the pressure of fluid for steel pipe to test its hydraulic test to withstand ability and quality, in the provision of pressure not leak, wet or expansion qualified, some steel tube and according to the standard or buyer's requirement, expanding edge test mouth test, crushed flat test, etc. Stainless steel enterprise non-standard stainless steel tube a. Stainless steel pipe series:
1. Stainless steel welded pipe:
Standard: GB12770 / ASTM312 mechanical structure with stainless steel welding tube, GB/T12771 liquid transportation/adornment with stainless steel welded pipe,
Material: SUS 304, 304 L, 316 L, 316 201202301
Specification: pipe: phi 4 ~ 406.4 mm thickness: 0.3 ~ 10.0 mm
Square tube: 10 * 10 ~ 150 * 150 mm thickness: 0.4 ~ 6.0 mm
Rectangular tubes: 10 * 20 ~ 100 * 200 mm thickness: 0.4 ~ 6.0 mm
Flower tube: 15.9 ~ 76.2 mm thickness: 1.0 ~ 1.5 mm

2. Stainless steel seamless tube:
Standard GB/T14976-2002 (liquid transportation use stainless steel seamless steel tube), GB/T14975-2002 (structure in stainless steel seamless tube), GB/T13296-91 (boiler, heat is stainless steel seamless steel tube)
Material: SUS 201. 202. 301. 304. 304 L. 321. 316. 316 L. 310. 310 S. 309
Specification: outside diameter: phi 1 ~ 630 mm thickness: 0.1-40 mm
(has a specific engineering and technical personnel according to clients' requirements development various special-shaped tube and other products)

2. The board series: (plate, plate, roll the belt, choi, decorative pattern plate)
Material: 304 L, 316 L, 321, 310 S, 201202,
Specification: 1000 x2000, 1219 1500, 1524 x2438 x3000 x3048, 1500 x6000 and condemn feet, etc
Board: NO1 2 B BA smooth (common/snowflake sand drawing) 8 K all kinds of flowers board/color plate...
Titanium plates: lens steel rose gold, lens steel champagne gold, mirror black, rose gold and blue color plate, bronze color plate, black gold color plate

3: stainless steel bar, steel, profiles: Angle steel, with great ones, channel steel, light round, black round, steel wire (electrolytic line, dish line)
Material: 310 S, 316 L, 316, 321, 304, 303, 202, 201, 301, 430.
Specification: bar (light round, black round) : phi 3 mm to 250 mm Angle steel: < * * 3 mm 25 25-100 * 100 * 10 mm steel: 20 * 3 mm-100 * 10 mm wire: 1 mm-3 mm channels: # 5-40 #

4: stainless steel pipe fitting: elbow, the three links, size head, tube cap, turn over the side (GuanJie) flange, material is qualitative with SUS 304, 304 L, 316 L, 316 201202301 primarily, complete specifications.

Company was set up DuoNian, have been developed, with sales of $one hundred million, the customer widely distributed in chemical, aerospace, aviation, elevator, air conditioning, medical equipment, kitchen utensils, pharmaceutical water supply equipment, food machinery, petroleum, electricity generation, construction, decoration, metal processing industries. My company has forklift, driving, van, goods shipment is convenient.
We adhere to the aim of "credit first, customer first" as purpose, the enthusiasm for you to provide the high quality service, sincerely welcome your visit. Specification: pipe: 6-600 MM square tube: 10 * 10, 150 * 150 rectangular tube: 10 * 15 150 * 200 packaging: plastic protective film 304 is one kind of universal stainless steel, and it is widely used in comprehensive performance requirements of making good (corrosion resistance and forming sex) equipment and parts. 304 stainless steel is according to the United States ASTM standard production out of a number of stainless steel. 304 in China Cr19Ni9 (equivalent to 0 0 Cr18Ni9) stainless steel. 304 containing cr, including nickel 9% 19%. 304 is the most widely used by the stainless steel, heat-resistant steels. Used in food production equipment, yesterday the chemical industry equipment, the nuclear etc. Specification: 12 X1-406 X30 SUS304 stainless steel chemical composition: more than 0.08 1.00 2.00 more than more than more than more than 0.05 0.03 18.00 20.00 8.25 ~ 10.50-in the air or chemical corrosion resistant to corrosion medium of a high alloy steel, stainless steel is a beautiful surface and corrosion resistant performance is good, need not after plating surface treatment, such as color and play stainless steel surface of the inherent properties, used in various steel, often called stainless steel. Representatives of the performance with 13 chrome, 18-8 nickel chrome steel alloy steel etc. Stainless steel pipe way for weight
(outside diameter-wall thickness) x wall thickness x 0.02491 = KG/M (weight) every meters of stainless steel tube application and maintenance: stainless steel pipe in use should be paid attention to when, avoid and corrosive high water and gas stainless steel pipe
Stainless steel