Estamos comprometidos a brindar un servicio integral para productos de tubería de acero a clientes de todo el mundo.
Chemical composition %
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
0.65 – 0.75 |
0.1 – 0.5 |
1.8 – 2.5 |
max 0.03 |
max 0.03 |
0.9 – 1.2 |
0.9 – 1.4 |
Mechanical properties
|
Hardness (annealed) b +A HBW max. |
Hardening test |
|||
|
Austenitizing temperature °C (±10 °C) |
Quenching medium |
Tempering temperature °C (±10 °C) |
Hardness HRC min. |
|
|
248 |
835 |
air |
180 |
58 |
Mill′s test certificate
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
Smelting Option
1 EAF: Electric Arc Furnace
2 EAF+LF+VD: Refined-smelting and vacuum degassing
3 EAF+ESR: Electro Slag Remelting
4 EAF+PESR: protective atmosphere Electro Slag Remelting
5 VIM+PESR: Vacuum induction melting
Forming Option
1 Hot rolling process
2 Hot Forging: Electro-hydraulic; High-speed-hydraulic; Oil-hydraulic; Precision-forging
1 +A: Annealed (full/soft/spheroidizing)
2 +N: Normalized
3 +NT: Normalized and tempered
4 +QT: Quenched and tempered (water/oil)
Surface Option
1 Black Surface
2 Grounded: Bright but rough ; Not precision
3 Machining for plate: Bright and precision; Little turning scar
4 Peeled/Turned: Bright and precision; Little turning scar
5 Polished: Very Bright and precision size; Not turning scar
Other Services
1 Cutting: Small pieces
2 CNC Machine: Produce as your drawing
3 Package: Bare/Nylon/Canvas/Wooden
4 Payment:T/T, L/C, O/A(request credit)
5 Transport:FOB/CFR/CIF/DDU/DDP (train/ship/Air)
