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Tensile Strengths & Specifications

Bridgeline Ropes offers the below charts for general guidelines regarding tensile strengths and specifications. All weights and tensile strengths are for new rope and are subject to change without notice.

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Product specifications links

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Braided Ropes
Twisted Rope
High Performance

Tensile strength specification sheets

Braided Ropes

Nominal Size	Nylon Double Braid	Polyester Double Braid	Spun Polyester	Polypropylene Hollow Braid	Floating Safety MFP Double Braid	Solid Braid MFP
Inches	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)

1/8"				200
3/16"	1,500	975		760	1,080	567
1/4"	2,400	1,550	1,400	1,225	1,710	882
5/16"	3,400	2,385	2,200	1,515	2,430	1,575
3/8"	4,800	3,420	3,200	2,575	3,420	2,100
7/16"	6,400	4,590	4,200	3,370	4,590	2,800
1/2"	8,400	5,940	5,600	4,470	6,030	3,500
9/16"	11,400	7,380		5,390
5/8"	15,400	9,000		6,115	9,500
3/4"	19,000	12,825		9,935
1"	34,000	22,500
1 1/8"	39,000	28,450
1 1/4"	50,000	35,000
1 1/2"
2"

Twisted Ropes

Nominal Size	Nylon 3-Strand Twist	Polypropylene 3-Strand Twist	Polyester 3-Strand Twist	Cotton 3-Strand Twist	Manila 3-Strand Twist	Sisal 3-Strand Twist
Inches	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)

1/8"		375
3/16"	900	720	990
1/4"	1,490	1,120	1,490	450	539	480
5/16"	2,300	1,450	2,300			780
3/8"	3,340	2,250	3,340	990	1,213	1,080
7/16"	4,500	3,188	4,500
1/2"	5,750	4,200	5,720	1,400	1,573	2,120
9/16"	7,200	5,100	7,200
5/8"	9,350	5,900	9,000	1,700	3,956	3,520
3/4"	12,800	8,500	11,300	2,300	4,833
1"	22,600		19,800	3,100	8,093
1 1/8"	29,800		26,000
1 1/4"	33,800		29,800		12,139
1 1/2"					16,635
2"					27,000

Braided High Performance Ropes

Nominal Size	Kevlar	Spectra	Spectra/Kevlar	Spectra/MFP	Spectra Light/MFP
Inches	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)	Average Tensile (lbs)

1/8"
3/16"	2,100	2,900	2,100	1,700	1,600
1/4"	3,800	4,400	3,400	2,600	2,500
5/16"	5,600	7,000	5,500	4,200	3,600
3/8"	8,000	9,100	8,200	5,400	5,000
7/16"	11,800	12,300	11,500	7,300	7,000
1/2"	16,000	16,000	15,000	9,600
9/16"	19,600	19,800	19,000	11,900
5/8"	22,000	24,000	23,300	14,300
3/4"	32,000	34,500	33,000	20,500
1"
1 1/8"
1 1/4"
1 1/2"
2"

"Spectra" is a registered trademark or Allied-Signal "Kevlar" is a registered trademark of Dupont Company