Standard: ASTM A213, A333, A335
Steel Grade:T2-T22 Gr1 to Gr9 P1to P91 etc
Size and OD: 1/8"-24"(10.3mm-610mm)
Wall Thickness: SCH10... STD,SCH40,SCH80...SCH160,XS,XXS.
ASTM A333 Gr 10 Alloy Steel Tube
The process begins with solid steel rounds, or billets, being cut to a specified length and sent through a walking-beam reheat furnace, where temperatures reach nearly 2,300°F.
After exiting the reheat furnace, the preheated rounds are turned into a tube shell in the rotary piercing mill as the billets are cross-rolled between two barrel-shaped rolls at a high speed.
The seamless shells enter mandrel mill, where they are rolled over a retained mandrel to provide the needed OD size and wall thickness for the next process. The process is carefully monitored using a state-of-the-art hot-wall measuring system.
The shells are then reheated for final forming in a 24-stand stretch-reducing mill, where outside diameters are formed to customers' exacting specifications. Wall thickness is again verified using a hot-wall measuring system.
After being rotated and advanced on the walking-beam cooling bed, the pipes are batch cut and transferred to an in-process storage area, where they are handled by computer-controlled gantry cranes.
ASTM A333 Gr 10 Alloy Steel Tube
Standard |
Steel Grade |
Chemical Components |
Machanical Property |
|
C |
Mn |
Si |
Cr |
Mo |
P |
S |
Tensile Strength (Mpa) |
Yield Strength(Mpa) |
ASTM A333 |
Gr6 |
≤0.30 |
0.29~1.06 |
≥0.10 |
|
|
≤0.025 |
≤0.025 |
≥415 |
≥240 |
ASTM A335 |
P1 |
0.10-0.20 |
0.30-0.80 |
0.10-0.50 |
|
0.44~0.65 |
≤0.025 |
≤0.025 |
≥380 |
≥205 |
P5 |
≤0.15 |
0.30~0.60 |
≤0.50 |
4.00~6.00 |
0.45~0.65 |
≤0.025 |
≤0.025 |
≥415 |
≥205 |
P9 |
≤0.15 |
0.30~0.60 |
0.25~1.00 |
8.00~10.00 |
0.90~1.10 |
≤0.025 |
≤0.025 |
≥415 |
≥205 |
P11 |
0.05~0.15 |
0.30~0.60 |
0.50~1.00 |
1.00~1.50 |
0.44~0.65 |
≤0.025 |
≤0.025 |
≥415 |
≥205 |
P12 |
0.05~0.15 |
0.30~0.61 |
≤0.50 |
0.80~1.25 |
0.44~0.65 |
≤0.025 |
≤0.025 |
≥415 |
≥220 |
P22 |
0.05~0.15 |
0.30~0.60 |
≤0.50 |
1.90~2.60 |
0.87~1.13 |
≤0.025 |
≤0.025 |
≥415 |
≥205 |
Our main products Datang manufactures and supplied as followings:
1) Seamless Steel pipes: OD: φ21.3mm~φ660mm(1/2" ~ 26"); WT: 2.5mm~60m; Length: 5.8m~12m;
2) LSAW(JOCE), ERW Steel pipes: ODφ168mm~φ1422.4mm(6" ~ 56") WT: 8mm~80mm; Length: 5.8m~12m;
3) SSAW Spiral Steel pipes: OD φ219mm~φ3620mm(8" ~ 144"); WT: 6mm~25mm; Length: 5.8m~12m.
4) Anti-corrosion steel pipes: with layer of 3PE, 3PP, FBE, Anti-drag coating, polyurethane insulating and cement-sand layer, etc.
5) SHS, RHS tubes: OD 20X20mm ~ 600x600mm; WT: 0.8~50mm.
6) Johnson Wedge Wire Screen Pipe:OD Range 19mm-2000mm