Hzjiutian/Hangzhou Jiutian Materials Co., Ltd.-Prestressed Reinforcement

PRODUCTS

Prestressed Reinforcement

Jotain's prestressing system consists of the high performances of thread bars, anchoring accessories, and HDPE accessories, which enable clients to accomplish procurement in one-stop for all related projects.

Prestressing Thread Bars Mechanical Properties(min. value)

Grade	Yield Strength	Tensile Strength	E-Modulus	Elongation at Failure
Grade	N/mm²	N/mm²	N/mm²	%
830/1030	830	1,030	205,000	6
930/1080	930	1,080	205,000	6
1080/1230	1080	1,230	205,000	6

Technical Data

Nominal Diameter	Cross-section Area	Linear Weight	Grade 830/1030		Grade930/1080		Grade 1080/1230
Nominal Diameter	Cross-section Area	Linear Weight	Yield Load	Ultimate Load	Yield Load	Ultimate Load	Yield Load	Ultimate Load
mm	mm²	kg/m	kN	kN	kN	kN	kN	kN
25	491	4.1	408	506	457	531	531	604
32	804	6.65	668	829	748	869	869	990
36	1018	8.41	845	1049	947	1100	1100	1253
40	1257	10.34	1043	1295	1169	1358	1358	1546
50	1964	16.28	1630	2023	1827	2121	2121	2416
63.5	3167	24.88	2629	3262	2945	3420	3420	3895

Dimensions & Tolerance

Nom. Dia. /mm	Diameter of Base Circle /mm				Height of Screw-thread/mm		Screw Pitch /mm		Thread Length /mm
	dh		dv		h		l
	Nom. Dim.	Permissible Dev.	Nom. Dim.	Permissible Dev.	Nom. Dim.	Permissible Dev.	Nom. Dim.	Permissible Dev.
25	25.0	±0.4	25.0	+0.4 -0.8	1.6	±0.3	12.0	±0.3	-10 +30
32	32.0	±05	32.0	+0.4 -1.2	2.0	±0.4	16.0	±0.3
36	36.0	±0.6	36.0	+0.4 -1.2	2.2	±0.4	18.0	±0.4
40	40.0		40.0	+0.5 -1.2	2.5	±0.5	20.0
50	50.0		50.0	+0.5 -1.2	3.0	+0.5 -1.0	24.0
63.5	63.5		63.5	+0.5 -1.2	3.0	+0.5 -1.0	22.0

Nut and Plate Dimensions

Nom. Dia.	Plate Square	Full Force Hex Nut	A	E	Weight
mm	mm	Steel Grade	mm	mm	kg/Pc
15	10010020	PSB785-PSB1080	45	29	-
18	10010020	PSB785-PSB1080	45	30	-
20	10010020	PSB785-PSB1080	45	32	-
25	12012020	PSB785-PSB1080	54	50	2.1/0.65
32	14014024	PSB785-PSB1080	72	65	3.5/1.45
36	15015030	PSB785-PSB1080	80	65	4.8/1.65
40	16016030	PSB785-PSB1080	100	70	5.25/2.09
50	18018040	PSB785-PSB1080	110	80	-

Coupler Dimensions

Nom. Dia.	Steel Grade	B	D	E	Weight
d.		B	D	E	Weight
mm		mm	mm	mm	kg/Pc
25	PSB785-PSB1080	50±0.5	126±0.6	25.4±0.3	1.95
32	PSB785-PSB1080	60±0.5	168±0.6	32.5±0.3	3.80
36	PSB785-PSB1080	70±0.5	180±0.6	36.6±0.3	5.44
40	PSB785-PSB1080	74±0.5	220±0.6	41.0±0.3	7.35

Plastic Accessories

HDPE Corrugate Pipe

Round Corrugated Pipe

Item	Inner Diamete d,mm		Outer Diameter D,mm		Thickness s,mm		Out of Roundness	Matching Anchorage
Item	Nominal	Deviation	Nominal	Deviation	Nominal	Deviation	Out of Roundness	Matching Anchorage
SBG-50Y	50	±1.0	63	±1.0	2.5	±0.5	6%	YM12-7	YM15-5
SBG-60Y	60		73		2.5			YM12-12	YM15-7
SBG-75Y	75		88		2.5			YM12-19	YM15-12
SBG-90Y	90	±2.0	106	±2.0	3.0			YM12-22	YM15-17
SBG-100Y	100		116		3.0			YM12-31	YM15-22
SBG-115Y	115		131		3.0			YM12-37	YM15-27
SBG-130Y	130		146		3.0			YM12-42	YM15-31

Flat HDPE Corrugated Pipe

Item	Long Axis/U1		Short Axis/U2		Thickness/s
Item	Nominal	Deviation	Nominal	Deviation	Nominal	Deviation
SBG-41B	41	±1.0	22	±0.5	2.5	±0.5
SBG-55B	55		22		2.5
SBG-72B	72		22		3.0
SBG-90B	90		22		3.0