A615 Grade75/100 Rock Bolts Pernos Helicoidal-Yidao

• After-sales Service: 10year
• Warranty: 10year
• Length: 12m
• Standard: ASTM
• Transport Package: Bundle
• Specification: Dia19, 22, 25, 32mm
• Model NO.: 19, 22, 25, 32mm
• Trademark: YD or OEM
• Origin: China
• HS Code: 730840
• Production Capacity: 1000ton/Month

Product Description

 A615 Grade 75/100 threaded bar/ pernos helicoidal barra

1 Basic description

El Sistema Helicoidal para refuerzo de macizos rocosos, es un conjunto de alta resistencia, compuesto por un perno helicoidal de hilo izquierdo de gran paso en toda su extension. Se usa en conjunto con planchuela (normalmente Vulcano Style) y tuerca mecanizada de rosca a izquierda.

2. Especificaciones de Barra Helicoidal

Dia./φ mm	Cross-sectional area/mm²	Weight (kg/m)	China grade Yield/Tensile	China grade Yield/Tensile
20	314	2.47	≥500/630MPA (157/198kN)	≥830/1030MPA (261/323kN)
25	491	4.10	≥500/630MPA (245/309kN)	≥830/1030MPA (408/506kN)
28	616	5.08	≥500/630MPA (308/388kN)	≥830/1030MPA (511/634kN)
32	804	6.65	≥500/630MPA (402/507kN)	≥830/1030MPA (667/828kN)
Elongation A%			≥10	≥7
Equivalent to			A615 Grade60, (420/620MPA),Grade75 (520/690MPA)	A615 Grade100 (690/790MPA)

Hot sale China Grade100 to Latin America.
 

3.Propiedades mecánicas de la Tuerca/dome nut

4.Steel plate for thread bar/ pernos /barra
size: 200x200x5mm or 150x150x10mm, or OEM produce as your request.

More details, pls  feel free to contact me 
Best regards,

Anna Yang

 
 
Handan Yidao Metal Products Co.,Ltd
No.183 Lianfang East Road, Handan, Hebei China 056004  
 
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