1)10#-45#, 16Mn, A53-A369, API J55-API P110, ST35-ST52 2) OD:30mm-1015mm WT:16mm-100mm 3)ASTM A106/A53; API 5L/ API 5CT;St52,
Seamless Steel Pipe ASTM A106/A53; API 5L/ API 5CT;St52,P110,X42,X52,X56,X65 OD:26mm-711mm(3/4inch-28inches) WT: 2.5mm-80mm
Seamless Steel Pipe
ASTM A106/A53; API 5L/ API 5CT;ASTM A179/192
OD:6mm-8201mm
WT: 1mm-240mm
Grade and Chemical Composition (%)
Grade | C≤ | Mn | P≤ | S≤ | Si≥ | Cr≤ | Cu≤ | Mo≤ | Ni≤ | V≤ |
A | 0.25 | 0.27-0.93 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
B | 0.30 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
C | 0.35 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
/Mechanical Properties
Grade | RmMpa Tensile Strength | MpaYield Point | AElongation | Delivery Condition |
A | ≥330 | ≥205 | 20 | Annealed |
B | ≥415 | ≥240 | 20 | Annealed |
C | ≥485 | ≥275 | 20 | Annealed |
K55 petroleum pipes
