A53 is the standard technical condition for uncoated and hot dip galvanized welded and seamless nominal steel pipes.
| Elements |
Type S
(Seamless)
|
Type E | Type F | ||
| (Electric-resistance Welded) | (Furnace-welded Pipe) | ||||
| Gr. A | Gr. B | Gr. A | Gr. B | Gr. A | |
| Carbon max. % | 0.25 | 0.30* | 0.25 | 0.3 | 0.3 |
| Manganese % | 0.95 | 1.2 | 0.95 | 1.2 | 1.2 |
| Phosphorous, max. % | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Sulfur, max. % | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| Copper, max.% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Nickel, max. % | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Chromium, max. % | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Molybdenum, max. % | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Vanadium, max. % | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
| NOTE: An increase of 0.06 percent of manganese over the given maximum will be authorized for each reduction of less than 0.01 percent below the specified carbon limit, up to a maximum of 1.65 percent (does not apply to SA53). | |||||
| Types and Grades | Min. Tensile Strength | Min. Yield Strength |
| Type E and S – Grade A | 330Mpa / 48000psi | 205Mpa / 30000psi |
| Type E and S – Grade B | 415Mpa / 60000psi | 240Mpa / 35000psi |
| Type F – Grade A | 330Mpa / 48000psi | 205Mpa / 30000psi |
| Item | O.D. | Over | Under |
| Outside Diameter | NPS 1/8 to 1-1/2, DN 6 to 40 | ±0.4mm | ±0.4mm |
| NPS 2 and up, DN 50 and up | ±1% | ±1% | |
| Wall Thickness at Any Point | – | ±12.5% | |
| Weight | ±10% | ±10% | |
GNEE Group is specialised in supplying A53 seamless pipe and welded pipe, offer SCH 10 to SCH 160 and SCH XXS specification A53 steel pipe, if you need a53 steel pipe, welcome to contact us anytime.
