ASTM A240 UNS S32750 Plate, ASME SA240 S32750 super duplex steel plate,SAF 2507 plate
We are a professional supplier and exporter of ASTM A240 ASME SA240 S32750 super duplex steel plate,SAF 2507 plate.
Super Duplex 2507 or SA240 S32750 is a nickel-molybdenum-chromium alloy designed for applications demanding outstanding strength and corrosion resistance. The nitrogen, chromium, and high molybdenum content results in excellent resistance to crevice corrosion and chloride pitting. Super Duplex 2507 is often found in offshore platforms, heat exchangers, chemical processing, seawater equipment, and in the petrochemical industry.
Corrosion Resistance
SAF2507 Duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid. It is alsohighly resistant to inorganic acids, especially if they contain chlorides. Alloy 2507 is highly resistant to carbide-related intergranular corrosion. Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved. Alloy 2507 has excellent localized pitting resistance.
Super Duplex UNS S32750 is the most common super duplex grade in the market. UNS S32750 is a duplex stainless steel especially designed for service in aggressive chloride-containing environments. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength. It is widely used in oil & gas, hydropower, pressure vessels, pulp & paper, structural components and chemical tankers
ASTM A240 is Standard Specification for Chromium and Chromium-Nickel Stainless .Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
Standard: ASTM A240
Delivery Condition: Cold Rolled or Hot Rolled.
Standard: ASTM A240/A240M, ASTM A480/480M
Grade: UNS S32750, SAF2507, Duplex 2507, F53, EN 1.4410, X2CrNiMoN25-7-4
- Thickness: 2mm-60mm
- Length: 1000mm-6000mm or customized
- Width: 600 to 1500mm or customized
- Application: Pressure vessel plate, chemical process vessel equipment
Chemical Composition of A240M UNS S32750 Plate
| Cr | Ni | Mo | C | N | Mn | Si | Cu | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.030 Max | .24-.32 | 1.20 Max | 0.80 Max | 0.50 Max | 0.035 Max | 0.020 Max | Balance |
PREN = (Cr% + 3.3Mo% + 16N%) ≥ 40
(Chemical composition and mechanical properties only)
ASTM A240 STAINLESS STEEL PLATES, ASTM A240 STAINLESS PLATES, ASME SA240 STAINLESS STEEL PLATE, A240 HOT ROLLED STAINLESS STEEL PLATES, A240 COLD ROLLED STAINLESS STEEL PLATES, A240 SS STEEL PLATE, A240 HR PLATE, A240 CR PLATE, A240 GRADE 304, 304L, 309, 309S, 310, 310S, 316, 316L, 317L, 321, 321H, 347, 347H, 904L ETC.
ASTM A240 Stainless Steel Plates in Hot Rolled and Cold Rolled with Surface Finish Like Mill Finish, No.1, 2B, 2D, No.4, No.8, Mirror, Brush, Hairline etc. with NACE MR O1-75, Intergranular Corrosion Test A262 Practice E, Mercury Free in Width of 1250 / 1500 / 2000 mm and Custom Size from 0.6 to 80 mm Thickness.
ASTM A240 / A240M
STANDARD SPECIFICATION FOR CHROMIUM AND CHROMIUM-NICKEL STAINLESS STEEL PLATE, SHEET, AND STRIP FOR PRESSURE VESSELS AND FOR GENERAL APPLICATIONS
ASTM A240 specification covers chromium, chromium-nickel, and chromium-manganese-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications including architectural, building, construction, and aesthetic applications.
ASTM-A480 › Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
Table A2.17 Permitted Variation in Thickness of Hot-Rolled Mill Plate (Quarto Plate)*, **
| Width (w), in. [mm] | ||||
|---|---|---|---|---|
| Specified Thickness (t), in. [mm] | w ≤ 84 [2134] | 84 [2134] < w ≤ 120 [3048] | 120 [3048] < w ≤ 144 [3658] | w > 144 [ 3658] |
| Tolerance Over Specified Thickness, *** in. [mm] | ||||
| t < 3/16 [4.76] | 0.055 [1.35] | 0.070 [1.78] | — | — |
| 3/16 [4.76] ≤ t < 3/8 [9.52] | 0.045 [1.14] | 0.050 [1.27] | 0.085 [2.16] | — |
| 3/8 [9.52] ≤ t < 3/4 [19.05] | 0.055 [1.40] | 0.060 [1.52] | 0.085 [2.16] | 0.090 [2.29] |
| 3/4 [19.05] ≤ t < 1 [25.04] | 0.060 [1.52] | 0.065 [1.65] | 0.085 [2.16] | 0.100 [2.54] |
| 1 [25.40] ≤ t < 2 [50.80] | 0.070 [1.78] | 0.075 [1.90] | 0.095[2.41] | 0.115 [2.92] |
| 2 [ 50.80] ≤ t < 3 [76.20] | 0.125 [3.20] | 0.150[3.80] | 0.175 [4.45] | 0.200 [5.08] |
| 3 [76.20] ≤ t < 4 [101.6] | 0.150 [3.81] | 0.160 [4.06] | 0.200 [5.08] | 0.225 [5.72] |
| 4 [101.6] ≤ t < 6 [152.4] | 0.180 [4.75] | 0.200 [5.08] | 0.335 [8.50] | 0.355 [9.02] |
| 6 [152.4] ≤ t < 8 [203.2] | 0.235 [6.00] | 0.255 [6.48] | 0.355 [9.02] | 0.435 [11.0] |
| 8 [203.2] ≤ t < 10 [254.0] | 0.315 [8.00] | 0.335 [8.50] | 0.435 [11.0] | 0.550 [14.0] |
* Thickness is measured along the longitudinal edges of the plate at least 3/8 in. [9.52mm], but not more than 3 in. [76.20 mm], from the edge.
** For plates up to 10 in. [254.0mm], excl, in thickness, the tolerance under the specified thickness is 0.010 in. [0.25 mm].
*** For circles, the over thickness tolerances in this table apply to the diameter of the circle corresponding to the width ranges shown. For plates of irregular shape, the over thickness tolerances apply to the greatest width corresponding to the width ranges shown.
Below is the Tolerance for Flatness taken from ASTM A480
(Understand that this covers Mill Plates and not cut pieces)
Table A2.20 Permitted Variations in Flatness of Plate Mill Plate (Quarto Plate)
Note 1 — Tolerances in this table apply to any length, not necessarily the rolling direction, up to 36 in. [914mm] and to any 36 in. [914mm] of longer lengths in the plane of the plate measured while the plate rests on a flat surface with the concavity of the curvature upward.
Note 2 — If the longer dimension is under 36 in. [914mm], the tolerance is not greater than 1/4 in. [6.4mm].
Note 3 — for plates with specified minimum yield strengths of 35 ksi [240MPa] or more, the permitted variations are increased to 1 1/2 times the amounts shown.
| Specified Thickness (t), in. [mm] | Flatness Tolerance for Thicknesses Given, in. [mm] |
|---|---|
| t < 1/4 [6.35] | 7/16 [11] |
| 1/4 [6.35] ≤ t < 3/8 [9.52] | 3/8 [9.5] |
| 3/8 [9.52] ≤ t < 1/2 [12.70] | 5/16 [7.9] |
| 1/2 [12.70] ≤ t < 3/4 [19.05] | 5/16 [7.9] |
| 3/4 [19.05] ≤ t < 1 [25.40] | 5/16 [7.9] |
| 1 [25.40] ≤ t < 1 1/2 [38.10] | 1/4 [6.4] |
| 1 1/2 [38.10] ≤ t < 4 [101.60] | 1/4 [6.4] |
| t ≥ 4 [101.60] | 1/4 [6.4] |
How to order our A240 UNS S32750 plate?
A240 UNS S32750 Plate 10mmx1500mmx6000mm,quantity,10 pcs.
A240 UNS S32750 SAF2507 Super Duplex Sheet 6mmx1500mmx6000mm,quantity,8 pcs.
