JIS B2220 · SS400 / S25C · stock and made to order
350A 10K Slip-On Plate (SOP) Flange — JIS B2220
350A 10K slip-on plate flange to JIS B2220, machined from SS400 / S25C. Outside diameter 490 mm, thickness 26 mm, 16 bolt holes on a 445 mm circle, approximate weight 16.3 kg. Available with raised face, flat face or the facing specified on your drawing.
Size
350A / DN350
Standard
JIS B2220 (JIS B2220:2012)
Pressure rating
10K
Outside diameter
490 mm
Thickness
26 mm
Bolt circle
445 mm
Approx. weight
16.3 kg
Full dimensions — 350A 10K
| Size | DN | OD | Thickness | RF Ø | Bolt circle | Bolts | Weight | |
|---|---|---|---|---|---|---|---|---|
| 10A | 10 | 90 mm | 12 mm | 46 mm | 65 mm | 4 × Ø15 mm | 0.51 kg | Details → |
| 15A | 15 | 95 mm | 12 mm | 51 mm | 70 mm | 4 × Ø15 mm | 0.56 kg | Details → |
| 20A | 20 | 100 mm | 14 mm | 56 mm | 75 mm | 4 × Ø15 mm | 0.72 kg | Details → |
| 25A | 25 | 125 mm | 14 mm | 67 mm | 90 mm | 4 × Ø19 mm | 1.12 kg | Details → |
| 32A | 32 | 135 mm | 16 mm | 76 mm | 100 mm | 4 × Ø19 mm | 1.47 kg | Details → |
| 40A | 40 | 140 mm | 16 mm | 81 mm | 105 mm | 4 × Ø19 mm | 1.55 kg | Details → |
| 50A | 50 | 155 mm | 16 mm | 96 mm | 120 mm | 4 × Ø19 mm | 1.86 kg | Details → |
| 65A | 65 | 175 mm | 18 mm | 116 mm | 140 mm | 4 × Ø19 mm | 2.58 kg | Details → |
| 80A | 80 | 185 mm | 18 mm | 126 mm | 150 mm | 8 × Ø19 mm | 2.64 kg | Details → |
| 90A | 90 | 195 mm | 18 mm | 136 mm | 160 mm | 8 × Ø19 mm | 2.73 kg | Details → |
| 100A | 100 | 210 mm | 18 mm | 151 mm | 175 mm | 8 × Ø19 mm | 3.1 kg | Details → |
| 125A | 125 | 250 mm | 20 mm | 182 mm | 210 mm | 8 × Ø23 mm | 4.73 kg | Details → |
| 150A | 150 | 280 mm | 22 mm | 212 mm | 240 mm | 8 × Ø23 mm | 6.3 kg | Details → |
| 175A | 175 | 305 mm | 22 mm | 237 mm | 265 mm | 12 × Ø23 mm | 6.75 kg | Details → |
| 200A | 200 | 330 mm | 22 mm | 262 mm | 290 mm | 12 × Ø23 mm | 7.46 kg | Details → |
| 225A | 225 | 350 mm | 22 mm | 282 mm | 310 mm | 12 × Ø23 mm | 7.7 kg | Details → |
| 250A | 250 | 400 mm | 24 mm | 324 mm | 355 mm | 12 × Ø25 mm | 11.8 kg | Details → |
| 300A | 300 | 445 mm | 24 mm | 368 mm | 400 mm | 16 × Ø25 mm | 12.6 kg | Details → |
| 350A (this size) | 350 | 490 mm | 26 mm | 413 mm | 445 mm | 16 × Ø25 mm | 16.3 kg | Details → |
| 400A | 400 | 560 mm | 28 mm | 475 mm | 510 mm | 16 × Ø27 mm | 23.2 kg | Details → |
| 450A | 450 | 620 mm | 30 mm | 530 mm | 565 mm | 20 × Ø27 mm | 29.3 kg | Details → |
| 500A | 500 | 675 mm | 30 mm | 585 mm | 620 mm | 20 × Ø27 mm | 33.3 kg | Details → |
| 550A | 550 | 745 mm | 32 mm | 640 mm | 680 mm | 20 × Ø33 mm | 42.9 kg | Details → |
| 600A | 600 | 795 mm | 32 mm | 690 mm | 730 mm | 24 × Ø33 mm | 45.4 kg | Details → |
Published JIS B2220 dimensions for every 10K size in this product family.
Dimensions in millimetres. Bolt hole diameter applies to through-holes. For stud length, gasket and bolting selection, match the gasket and bolts to JIS B2220.
What 10K means in service
JIS 10K is a nominal rating of approximately 1 MPa (10 kgf/cm²). The JIS B2220 Table 11 maximum working pressure for material group 1.1, Division I is higher than the nominal figure at up to 120 °C, then derates with temperature; read the table for your material group and division.
JIS K ratings are kgf/cm² nominal: 5K ≈ 0.5 MPa, 10K ≈ 1.0 MPa, 16K ≈ 1.6 MPa, 20K ≈ 2.0 MPa and 30K ≈ 3.0 MPa. The published maximum working pressure is higher or lower than the nominal figure depending on material group and division — for material group 1.1, Division I, the JIS B2220 Table 11 value at up to 120 °C is 0.7 MPa for 5K, 1.4 MPa for 10K, 2.7 MPa for 16K, 3.4 MPa for 20K, 5.1 MPa for 30K, 6.8 MPa for 40K and 10.7 MPa for 63K. Allowable pressure falls with temperature, and JIS bolt patterns differ from ASME classes of similar pressure.
Facing and materials
Raised face (RF) is standard for steel JIS flanges; the raised-face height is 2 mm. Flat face is available on request.
- SS400
- S25C
- SUS304
- SUS316
- SCS13 / SCS14 (cast)
Other grades, impact-tested heats and NACE MR0175 requirements are quoted on request. Material certificates to EN 10204 3.1 are issued against the same heat number as the dimensional report.
Inspection and delivery
- Dimensional inspection against the JIS B2220 table for 350A 10K
- Heat number stamped on the rim; EN 10204 3.1 certificate issued
- PMI on stainless and alloy heats; UT/RT on request
- Anti-rust oil, plywood case or pallet, with packing list and MTC
- Typical lead time 7–15 days for carbon steel stock sizes, 20–30 days for alloys
Other sizes in 10K
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350A 10K Slip-On Plate (SOP) Flange
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