Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Delivery Time | 7DAYS |
| Packaging Details | Bundle with plastic Cap/Wooden Case |
| Product Name | Duplex Stainless Steel Flange |
| Standard | ASTM A182 |
| Material | F51 |
| NDT | PT/UT |
| Flange Type | WN, SO, BL, SW, SPECTACLE, LJP, ORINFICE |
| Packing | Bundle with plastic Cap/Wooden Case |
| Application | Oil&Gas/Chemcial/Cooling System/Pulp and Paper Industry |
| Brand Name | YUHONG |
| Model Number | ASTM A182 F51 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7DAYS |
| Packaging Details | Bundle with plastic Cap/Wooden Case | Product Name | Duplex Stainless Steel Flange |
| Standard | ASTM A182 | Material | F51 |
| NDT | PT/UT | Flange Type | WN, SO, BL, SW, SPECTACLE, LJP, ORINFICE |
| Packing | Bundle with plastic Cap/Wooden Case | Application | Oil&Gas/Chemcial/Cooling System/Pulp and Paper Industry |
| Brand Name | YUHONG | Model Number | ASTM A182 F51 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 | Place of Origin | CHINA |
| High Light | ASTM A182 F51 duplex steel flange ，B16.5 stainless steel flange ，industrial pipeline steel flange | ||
ASTM A182 F51 Duplex Stainless Steel Flange B16.5 for Industrial Pipeline
ASTM A182 specification covers forged low alloy and stainless steel piping fittings used in pressure systems, including flanges, fittings, valves, and similar parts that conform to specified dimensions or size standards. And it covers various grades of low-alloy steels as well as ferritic, martensitic, austenitic, and ferritic austenitic stainless steels. F51 is a duplex steel material grade code under the ASTM A182 standard. The more common common name is 2205 duplex steel, which comes from its typical chemical composition ratio of about 22% chromium and 5% nickel.
ASTM A182 F51 Duplex Stainless Steel Flange Heat Treatment
| GRA. | UNS GRA. | Tensile Strength, min, ksi [MPa] | Yield Strength, min, ksi [MPa]B | Elongation in 2 in. [50 mm] or 4D, min, % |
|---|---|---|---|---|
| F51 | S31803 | 90 [620] | 60 [450] | 25 |
ASTM A182 F51 Duplex Stainless Steel Flange Advantages
ASTM A182 Duplex Stainless Steel Flange Chemical Composition
| GRA. | CHEMICAL COMPOSITION % MAXIMUM | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | MN | P | S | SI | CR | NI | MO | CU | N | |
| F51 | 0.03 | 2.0 | 0.030 | 0.02 | 1.0 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | --- | 0.08-0.20 |
| F53 | 0.03 | 1.2 | 0.035 | 0.02 | 0.8 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.5 | 0.24-0.32 |
| F55 | 0.03 | 1.0 | 0.030 | 0.01 | 1.0 | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.5-1.0 | 0.20-0.30 |
Nondestructive Testing and Quality Control for ASTM A182 F51 Duplex Stainless Steel Flanges
1.Liquid Penetrant Testing: This is almost mandatory and is used to detect surface defects in critical areas such as the flange sealing surface and grooves. Linear defects on the sealing surface are not permitted.
2.Ultrasonic Testing: Ultrasonic Testing (UT) is required for large or high-pressure flanges to detect internal defects.
3.Corrosion Testing: Intergranular corrosion testing is typically required to ensure proper heat treatment and the absence of chromium carbide precipitation.
4.Ferrite Content Measurement: A ferrite meter is used to ensure the ferrite content is within the ideal range of 35-55% to verify the effectiveness of the heat treatment.
5.Material Verification: A spectrometer is used to verify that the chemical composition meets the standard.
ASTM A182 F51 Duplex Stainless Steel Flange Main Application Areas
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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