| MOQ: | 1pc |
| Price: | Above 2usd/kg |
| Standard Packaging: | Plywood case/pallet |
| Delivery Period: | 3 weeks/container |
| Payment Method: | L/C,D/A,D/P,T/T |
| Supply Capacity: | 100 ton/month |
SMLSCO has been manufacturing stainless steel pipe products since 2006, primarily serving stockholders and distributors. Our product range includes seamless pipes, fittings, and forged flanges. With a 10,000㎡ indoor warehouse stocking seamless pipes, weld neck fittings, and forged blanks, we provide flexible delivery support for products like the F53 Super Duplex Forged Flange through existing inventory and factory collaboration.
| Attribute | Value |
|---|---|
| Product Name | F53 Super Duplex Forged Flange |
| Material Grade | ASTM A182 F53 / UNS S32750 |
| Product Type | Forged Flange |
| Nominal Size | OD 50 Inch (≤80 Inch) |
| Standard Compliance | ASTM A182 / ASME B16.47 / ASME B16.5 / EN1092-1 as required |
| Flange Type | WN / SO / BL / LJ / PL / TH / SW as required |
| Facing Type | RF / FF / RTJ / TG / MFM / LJ as required |
| Pressure Class | Class 150-2500 |
| Inspection | Dimensional Inspection, Surface Inspection, PMI, Mechanical Properties, Penetrant Test |
| Certification | PED / ISO / NORSOK M-650 |
SMLSCO offers comprehensive inspection services for F53 Forged Flanges including Dimensional Inspection, PMI, Mechanical Properties, Hardness Test, and Penetrant Test, based on standards and order requirements.
For OD 50 Inch large-size flanges, dimensional inspection is particularly critical. Our inspectors verify outer diameter, thickness, hole spacing, number of bolt holes, sealing surface type, and product markings to ensure conformity with drawings, standards, and order requirements. All inspection records and photographs are maintained for quality traceability.
![]()
| UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
|---|---|---|---|---|---|---|---|---|---|---|
| S32750 | 0.03 max | 0.8 max | 1.2 max | 0.035 max | 0.02 max | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.5 max |
| Steel Grade | Y.S (MPa) | T.S (MPa) | EL. (%) | HRB |
|---|---|---|---|---|
| S32750/2507 | ≥550 | ≥800 | ≥15 | ≤32 |
SMLSCO selects appropriate packaging based on flange size, shipping method, and destination market: