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| Parameter class | Specific parameter |
| Material parameter | Chemical composition: such as 304 containing 18%-20% Cr, 8%-10.5% Ni, C≤0.08%; 316 contains 2%-3% Mo on the basis of 304 |
| Mechanical properties: 304 tensile strength ≥520MPa, yield strength ≥205MPa, elongation ≥40%; 316 Tensile strength ≥620MPa, yield strength ≥310MPa, elongation ≥30% | |
| Dimension parameter | Nominal diameter: DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, etc |
| Outer diameter: such as DN100 seamless elbow may be 108mm or 114mm, etc | |
| Wall thickness: about 3mm-10mm, or follow Sch5s, Sch10s, Sch40s and other wall thickness grades | |
| Bending radius: Long radius R=1.5DN; Short radius R=DN | |
| Angle parameter | Common Angle: 90°, 45°, 180°, special 30°, 60° and so on |
| Pressure rating parameter | PN series: PN2.5, PN6, PN10, PN16, PN25, PN40, etc |
| Class series: Class150, Class300, Class600, etc | |
| Manufacturing and surface treatment parameters | Manufacturing process: push, pressing, forging, casting, etc |
| Surface treatment: pickling, passivation, polishing, surface roughness can reach Ra0.8μm-Ra1.6μm and so on |
The following is an example of 90° industrial grade welded stainless steel elbow
| DN | NPS | End outer diameter A series | End outer diameter B series | Long radius from center to end | Short radius from center to end |
| 15 | 1/2 | 21.3 | 18 | 38 | - |
| 20 | 3/4 | 26.9 | 25 | 38 | - |
| 25 | 1 | 33.7 | 32 | 38 | 25 |
| 32 | 1.1/4 | 42.4 | 38 | 48 | 32 |
| 40 | 1.1/2 | 48.3 | 45 | 57 | 38 |
| 50 | 2 | 60.3 | 57 | 76 | 51 |
| 65 | 2.1/2 | 76.1(73) | 76 | 95 | 64 |
| 80 | 3 | 88.9 | 89 | 114 | 76 |
| 90 | 3.1/2 | 101.6 | - | 133 | 89 |
| Name | Long Radius Stainless steel 180 Degree ASTM Butt Weld Seamless Industrial Equal Pipe Bend for Oil and Gas |
| Standard | GB12459,GB/T13401 |
| EN10253-1, EN10253-2 | |
| JIS B2311, B2312, B2313 | |
| DIN2605, DIN2615,DIN2616,DIN2617 | |
| ASME B16.9, ASTM A234, ASTM A420, ANSI B16.9, B16.25,B16.28, MSS SP-75 | |
| Angle | 45/90/180° |
| Thickness | 0.5mm-60mm |
| Pressure range | SCH5S,SCH10S,SCH20,SCH30,SCH40,SCH60,SCH80,SCH100,SCH120,SCH140,SCH160,XXS |
| Formed type | Ball forming |
| Surface type | Sand blasting, Sand rolling, Acid cleaning |
| Size | DN15-DN1200 |
| End | Bevel Ends , Plain Ends |
| Connection type | Weld |
| Material | SS304/SS316L |
| Application | Chemical , power, construction, potroleum, gas, water, steam, |
| Special Design | Contact Us |
| Customized Size | Contact Us |
| Warranty | 1 year |
| Package | Cartons, pallet, cases |
| Production period | In 15-60 days upon order quantity |
| Payment term | LC, T/T, Western Union, Small-amount payment |
| Certificate | ISO14001,ISO9001,ASME,CCC,CE |
| Closest port for shipment | shanghai |
| Advantages | 1. Customerized dimensions to meet different requirement 2. quality control from raw materials to the final products 3. Abundant stock 4.Rich export experience 5. Reliable shipping forwarder |
Zhongzheng Stainless Steel Co., Ltd. was established in 2018 with aregistered capital of 20 million yuan. lt is a manufacturing company thatintegrates the production of special materials, manufacturing andprocessing, sales, and technology development. The company covers anarea of 2,000 square meters and has 200 employees. it has built worldclass stainless steel seamless pipe (hot piercing, cold drawing, cold rollingproduction lines, precision steel pipe production lines, and large, mediumand small-sized welded pipe production lines. The company has beencommitted to providing high performance, high precision, hightemperature-resistant, high pressure-resistant, and corrosion-resistantsolutions and technical services for industrial equipment pipeline systems.The company specializes in producing a series of steel pipes, pipe fittingsflanges, etc., such as high-temperature (nickel-based) alloys, austeniticduplex steel, urea grade stainless steel, super stainless steel, etc. Thecompany is equipped with an annual production capacity of 5,000 tons ofstainless steel seamless pipe production line, 7,000 tons of welded pipeproduction line, and 500 tons of pipe fittings production line, etc. lt canoroduce stainless steel seamless pipes with diameters ranging from Φ6 toΦ762 and wall thicknesses ranging from 0.5 to 70 mm, stainless steelwelded pipes with diameters ranging from Φ15 to Φ2200 and wallthicknesses ranging from 0.5 to 80 mm, pipe fittings, and various stainlesssteel ingots, round steel, rough pipes, etc., according to customerrequirements and in accordance with standards such as GB, ASTM, etc.
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