B500 D25 Thread Bar for Rock Bolts in Mining

• Customization: Available
• Type: Carbon Steel Bar
• Standard: ASTM, GB
• Model NO.: 25-500
• Composition: Ferrous Steel Scrap
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Black
• Special Use: Free Cutting Steel
• Application: Structural Steel Bar
• Grade: Yield 500MPa /Tensile 630MPa
• Other Grade: 500/830/930/1080MPa
• Break Load: 190-2100kn
• Finish: Plain or Zinc Plated or HDG
• Accessories: Nut, Plate, Coupler, Spacer etc
• Certificate: SGS Report
• Transport Package: Pallet
• Specification: D15-50mm
• Trademark: YD
• Origin: China
• HS Code: 730840
• Production Capacity: 5000ton/Month

Product Description

B500 D25 thread bar used for rock bolts in tunnel

Yidao produce threadbar anchor are hot rolled bars with continuous thread,along the entire length, allowing anchorages and couplers to be threaded onto the bar at any point.

Yidao threadbar anchor application: reinforcement coupling, soil nails, micropiles, prestressed ground anchors, rock bolts and anchorage systems for tunneling and mining.
 

Hot galvanized
Rock bolts/ Full threaded bar
Dome nut
Dome plate
Coupler

 

High strength thread bar

 

Steel Grade	N/mm²	500/630. close to grade60/75
Nominal Bar Dia  D1	mm²	20	25	32	36	40
Nominal Section Area	mm²	314	491	804	1018	1257
Nominal Weight	kg/m	2.47	4.1	6.65	8.41	10.34
Yield Load	KN	157	245	402	509	628
Ultimate Load	KN	198	309	507	641	792

 

Other diameter and grade available

Dia./φ mm	Cross-sectional area/mm²	Weight (kg/m)	Yield/Tensile	Yield/Tensile	Yield/Tensile	Yield/Tensile
20	314	2.47	≥500/630MPA(157/198kN)	≥830/1030MPA(261/323kN)	≥930/1080MPA(292/339kN)	≥1080/1230MPA(339/386kN)
25	491	4.10	≥500/630MPA(245/309kN)	≥830/1030MPA(408/506kN)	≥930/1080MPA(457/530kN)	≥1080/1230MPA(530/604kN)
28	616	5.08	≥500/630MPA(308/388kN)	≥830/1030MPA(511/634kN)	≥930/1080MPA(573/665kN)	≥1080/1230MPA(665/758kN)
32	804	6.65	≥500/630MPA(402/507kN)	≥830/1030MPA(667/828kN)	≥930/1080MPA(748/868kN)	≥1080/1230MPA(868/989kN)
Elongation A%			≥10	≥7	≥7	≥6
Equivalent to			A615 Grade60, (420/620MPA),Grade75 (520/690MPA)	A615 Grade100 (690/790MPA)	A722 Grade150 (950/1050MPA)	A722 Grade160

  

Features

•Widest range of bar diameters from 15mm up to 75mm

•Continuous robust thread appropriate for all environmental conditions and suitable for cutting or lengthening with a coupler at any location

•High quality threaded bar system with superior fatigue performance

•Widest range of bar grades from 500MPa up to 1230MPa (ultimate)

•Full range of accessories facilitate easy and reliable installation

•Suitable for temporary or permanent applications

•Available in standard lengths of 12m (custom lengths on request)

•Tested to the latest international standards

Application

Concrete Reinforcement Steel Bars

Rock Bolts

Mini and Micro Piles

Piles and Diaphragm Wall Cages

Ground Anchors

Soil Nails

Tie Rods

We are China factory for hot rolled,continuous thread bar/post tension bar, Dia15/20/25/32/36/40/50mm, grade 500/830/930/1080MPa,over 10years and 5000MT per month. More details, pls contact me. 

 

 
Handan Yidao Metal Products Co.,Ltd
No.183 Lianfang East Road, Handan, Hebei China 056004  
   
*Post-Tensioning *Formworks *Geotechnical  *Ground Anchors *Soil Nailing *Tunneling