Our Class 300 Forged Steel Raised Face Weld-Neck Flanges are manufactured from ASTM A105 mild steel. Dimensions and tolerances meet ASME B16.5 specifications, and they are painted black for corrosion resistance. We manufacture these flanges in domestic (AIS) and import options, and our machine shop can modify ANSI/ASME flanges to spec.
Please contact us for a quote.
Downloads:
| API Part Number | Size | O.D. | I.D. | Ø B.H.C. | Ø B.H. | # B.H. | THK 1 | THK 2 | Ø H.D. | Ø A (Weld Point) | Ø RF | RH (RAD) | Weight Lbs |
| RFWN0050-30-S40 | 0.5 | 3.75 | 0.62 | 2.63 | 0.750 | 4 | 0.50 | 2.00 | 1.50 | 0.84 | 1.38 | 0.188 | 1.5 |
| RFWN0075-30-S40 | 0.75 | 4.63 | 0.82 | 3.25 | 0.750 | 4 | 0.56 | 2.19 | 1.88 | 1.05 | 1.69 | 0.188 | 2.7 |
| RFWN0100-30-S40 | 1 | 4.88 | 1.05 | 3.50 | 0.750 | 4 | 0.62 | 2.38 | 2.12 | 1.32 | 2.00 | 0.188 | 3.4 |
| RFWN0125-30-S40 | 1.25 | 5.25 | 1.38 | 3.88 | 0.750 | 4 | 0.69 | 2.50 | 2.50 | 1.66 | 2.50 | 0.188 | 4.4 |
| RFWN0150-30-S40 | 1.5 | 6.13 | 1.61 | 4.50 | 0.875 | 4 | 0.75 | 2.63 | 2.75 | 1.90 | 2.88 | 0.188 | 6.3 |
| RFWN0200-30-S40 | 2 | 6.50 | 2.07 | 5.00 | 0.750 | 4 | 0.81 | 2.69 | 3.31 | 2.38 | 3.63 | 0.188 | 7.3 |
| RFWN0250-30-S40 | 2.5 | 7.50 | 2.47 | 5.88 | 0.875 | 8 | 0.94 | 2.94 | 3.94 | 2.88 | 4.13 | 0.188 | 11.1 |
| RFWN0300-30-S40 | 3 | 8.25 | 3.07 | 6.63 | 0.875 | 8 | 1.06 | 3.06 | 4.62 | 3.50 | 5.00 | 0.188 | 14.8 |
| RFWN0350-30-S40 | 3.5 | 9.00 | 3.55 | 7.25 | 0.875 | 8 | 1.12 | 3.13 | 5.25 | 4.00 | 5.50 | 0.188 | 18.5 |
| RFWN0400-30-S40 | 4 | 10.00 | 4.03 | 7.88 | 0.875 | 8 | 1.19 | 3.32 | 5.75 | 4.50 | 6.19 | 0.188 | 24.2 |
| RFWN0500-30-S40 | 5 | 11.00 | 5.05 | 9.25 | 0.875 | 8 | 1.31 | 3.82 | 7.00 | 5.56 | 7.31 | 0.188 | 31.9 |
| RFWN0600-30-S40 | 6 | 12.50 | 6.07 | 10.63 | 0.875 | 12 | 1.38 | 3.82 | 8.12 | 6.63 | 8.50 | 0.250 | 41.0 |
| RFWN0800-30-S40 | 8 | 15.00 | 7.98 | 13.00 | 1.000 | 12 | 1.56 | 4.32 | 10.25 | 8.63 | 10.63 | 0.250 | 63.6 |
| RFWN1000-30-S40 | 10 | 17.50 | 10.02 | 15.25 | 1.125 | 16 | 1.81 | 4.56 | 12.62 | 10.75 | 12.75 | 0.250 | 90.8 |
| RFWN1200-30-S40 | 12 | 20.50 | 11.94 | 17.75 | 1.250 | 16 | 1.94 | 5.06 | 14.75 | 12.75 | 15.00 | 0.313 | 132.9 |
| RFWN1400-30-S40 | 14 | 23.00 | 13.12 | 20.25 | 1.250 | 20 | 2.06 | 5.56 | 16.75 | 14.00 | 16.25 | 0.313 | 184.1 |
| RFWN1600-30-S40 | 16 | 25.50 | 15.00 | 22.50 | 1.375 | 20 | 2.19 | 5.69 | 19.00 | 16.00 | 18.50 | 0.313 | 233.0 |
| RFWN1800-30-S40 | 18 | 28.00 | 16.88 | 24.75 | 1.375 | 24 | 2.31 | 6.19 | 21.00 | 18.00 | 21.00 | 0.313 | 292.6 |
| RFWN2000-30-S40 | 20 | 30.50 | 18.81 | 27.00 | 1.375 | 24 | 2.44 | 6.32 | 23.12 | 20.00 | 23.00 | 0.313 | 356.7 |
| RFWN2400-30-S40 | 24 | 36.00 | 22.62 | 32.00 | 1.625 | 24 | 2.69 | 6.56 | 27.62 | 24.00 | 27.25 | 0.313 | 524.5 |
