U29 Underground Tunnel Mining Metal Bracket Support U Steel Trusses

• Type: Carbon Steel Bar, Cold Bending Equal Channel
• Standard: GB, GB
• Composition: Stainless Steel Scrap
• Technique: Welded
• Shape: U Channel, U Channel
• Surface Treatment: Galvanized
• Model NO.: U29
• Special Use: High-strength Steel Plate
• Application: Structural Steel Bar
• Perforated: Not Perforated
• Length: 5-12m
• Height: 124mm
• Thickness: 16mm
• Weight: 29kg/M
• Modulus: 200gpa
• Poisson′s Ratio: 0.3
• Capacity: 7800kg/M3
• Brand: China Coal
• Plce of Origin: China
• Congdition: New
• Keywords: Steel Support
• Transport Package: Wooden Case
• Specification: 5t Mechanical Track Jack
• Trademark: chinacoal
• Origin: Shandong, China
• HS Code: 8428909090
• Production Capacity: 10000 PCS Per Month

Product Description

Introduction Of U29 Mining Support U Steel Support

29U Mining Support U Steel Support is mainly used for mine tunnel, mine tunnel secondary support, as well as support through the mountain tunnel support purposes. 29U shaped steel support lift straight wall semi-arched shed in the Ready Roadway Intersection of applications, and achieved remarkable results. Optional retractable U-shaped steel support, solves the problem of tunneling support.
Advantages
29U steel support has the characteristics of withstanding high pressure, support long time, easy to install and easy to deformation. 29U shaped steel support lift straight wall semi-arched shed in the Ready Roadway Intersection of applications, and achieved remarkable results. Optional retractable U-shaped steel bracket, solves the problem of tunneling support. 29U shaped steel support than other rigid support with a scalable and reliable carrying capacity to adapt to the load and deformation of soft rock, cross utilization, branch back to the convenient stand, bracket, reuse rate, reduce prop use, environmental benefits very obvious.
Technology Parameter
Tensile strength(TS)larger than 575MPa,
Yield strength(YS) larger than 400MPa,
EL elongation greater than or equal 26%

Parameter Of  Mining Support U Steel Support

Size	Material	Theoretical weight (kg/m)	cross-sectional area (cm2)	Height	Thickness	Width	Leg thickness
25U	Q275B/ 20Mnk	24.95	31.79	+1.0 120 -1.5	+0.5 15 -1.2	+1.0 130 -3.0	+0.8 6.3 -0.5
29U	Q275B/ 20Mnk	29.00	37.00	+1.0 124 -1.5	+0.5 16 -1.2	+1.0 150.5 -3.0	+0.8 7.2 -0.5
36U	20Mnk	35.87	45.70	+1.0 138 -1.5	+0.5 17 -1.2	+1.0 171 -3.0	+0.8 7.8 -0.5
40U	20Mnk	40.05	51.02	+1.0 149 -1.5	+0.5 20.2 -1.2	+1.0 171 -3.0	+0.8 8.5 -0.5

Parameter Of  Mining Support U Steel Support