Cold drawn special-shaped seamless steel pipe

r3 Cold-drawn special-shaped seamless steel pipes include non-circular cross-sectional profiles, constant wall thickness, variable wall thickness, variable diameter and wall thickness along the length direction, symmetrical and asymmetrical cross-sections, etc. Such as square, rectangle, cone, trapezoid, spiral, etc. Special-shaped steel pipes can better adapt to the particularities of use conditions, save metal and improve labor productivity in parts manufacturing. It is widely used in aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, construction, textiles and boiler manufacturing. Methods for producing special-shaped pipes include cold drawing, electric welding, extrusion, hot rolling, etc. Among them, the cold drawing method has been widely used. Cold-drawn special-shaped seamless steel pipes are divided into special-shaped square pipes, rectangular special-shaped pipes, special-shaped welded pipes, and spiral welded pipes. Specifications: *-, wall thickness, spiral steel pipe. Spiral steel pipe specifications, -, wall thickness straight seam specifications include minutes, minutes, inches, . inch, . inch, inch, . inch, 3 inch, inch, inch, inch, inch,,,,,,,,,,,3 and other specifications of special-shaped pipes generally refer to square and rectangular steel pipes.
r3. Cold-rolled shaped steel allows local buckling of the section, so that the bearing capacity of the rod after buckling can be fully utilized, while hot-rolled shaped steel does not allow local buckling of the section.
r3. The causes of residual stress in hot-rolled steel and cold-rolled steel are different, so the distribution on the cross-section is also very different. The residual stress distribution on the cold-formed thin-walled steel section is curved, while the residual stress distribution on the hot-rolled steel or welded steel section is film-type.
r3 The free torsional stiffness of hot-rolled steel is higher than that of cold-rolled steel, so the torsional performance of hot-rolled steel is better than that of cold-rolled steel.
r3 cold-drawn special-shaped seamless steel pipe general material B
r3 cold-drawn special-shaped seamless steel pipe has higher precision, smoother surface than ordinary drawn steel pipe, saves costs, and is the first choice for the machinery industry.
Our company's main business:
,
Steel pipes, round steel,
,
,
,
,
,
,
,
,
3(
,
,
,
)
,
3(
,
,
,
)
,
,
,
,
,
,
,
,
,
(
Gangyan
)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,

,

,
,
, steel pipe, seamless steel pipe, high-pressure boiler pipe
, alloy pipe
, stainless steel pipe
. The company has strong strength, sufficient resources, abides by contracts and keeps promises, strives for credibility with quality and development with reputation, and wins customers with low prices. It can handle ordering business for steel pipes of various specifications and materials from major steel pipe factories for the majority of users.
Liaocheng Baoxin Steel Pipe Co., Ltd.
is a professional steel trading company integrating trade and distribution. It consists of steel pipe sales department, profile sales department and plate sales department. Tens of thousands of tons of goods are in stock for a long time! The company has established long-term and stable cooperative relationships with dozens of large steel manufacturers, with sufficient supply and complete varieties and specifications.
Steel Pipe Sales Department: Mainly engaged in the production of Baotou Steel, Panzhihua Iron and Steel, Anshan Iron and Steel, Shanghai Baosteel, Tianjin Seamless, Hengyang Valin and other major steel mills,,,,,(),3,3,,,
,
Seamless pipes, high-pressure boiler pipes, seamless square and rectangular pipes, alloy pipes, high-temperature and high-pressure boiler pipes, petroleum pipes, etc. of various materials and specifications Cracked pipes, hydraulic support pipes, low alloy pipes, imported high alloy pipes, etc. At the same time, the company will also produce special steel pipes with special specifications and materials for you according to your requirements.
Plate Sales Department: Mainly engaged in steel plates produced by large steel plants such as Jinan Iron and Steel, Laiwu Iron and Steel, Baotou Steel, Tiangang, Shigang, Tangshan Iron and Steel, Anyang Iron and Steel, Rizhan Iron and Steel, Maanshan Iron and Steel, Handan Iron and Steel, Wugang and other large steel plants. , steel plates, steel plates,,, various specifications of steel plates.
Profile Sales Department: Mainly engaged in profile steel, section steel, section steel, square steel, channel steel, angle steel, light and heavy rail, etc. produced by several major steel plants such as Maanshan Iron and Steel, Laiwu Iron and Steel, Rizhao, Jinxi, and Panzhihua Iron and Steel.