GALVANIZED STEEL WIRE

Galvanization Strength steel wire is divided into three grades, respectively, with Level 1, Level 2 and Level 3 represent. Galvanized layer has different Area Density of galvanization.

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Level 1 Specification
Level 2 Specification
Level 3 Specification
Galvanized Layer
Determine Stress

Technical Specification of Galvanization Strength Steel Wire Level 1

Norminal Diameter mm	Diameter Deviation mm	Stress at 1% Extension, min, MPa	Ultimate Tensile Strength, min, MPa	Elongation in 250mm, min, %	Winding Test Mandrel Diameter mm	Twisting Test Twisting Times, min
Norminal Diameter mm	Diameter Deviation mm	Stress at 1% Extension, min, MPa	Ultimate Tensile Strength, min, MPa	Elongation in 250mm, min, %	Winding Test Mandrel Diameter mm	Twisting Test Twisting Times, min
1,24< d ≤ 2,25	±0,03	1170	1340	3,0	1D	18
2,25< d ≤ 2,75	±0,04	1140	1310	3,0	1D	16
2,75< d ≤ 3,00	±0,05	1140	1310	3,5	1D	16
3,00< d ≤3,50	±0,05	1100	1290	3,5	1D	14
3,50< d ≤4,25	±0,06	1100	1290	4,0	1D	12
4,25< d ≤4,75	±0,06	1100	1290	4,0	1D	12
4,75< d ≤5,50	±0,07	1100	1290	4,0	1D	12

Technical Specification of Galvanization Strength Steel Wire Level 2

Norminal Diameter mm	Diameter Deviation mm	Stress at 1% Extension, min, MPa	Ultimate Tensile Strength, min, MPa	Elongation in 250mm, min, %	Winding Test Mandrel Diameter mm	Twisting Test Twisting Times, min
Norminal Diameter mm	Diameter Deviation mm	Stress at 1% Extension, min, MPa	Ultimate Tensile Strength, min, MPa	Elongation in 250mm, min, %	Winding Test Mandrel Diameter mm	Twisting Test Twisting Times, min
1,24< d ≤ 2,25	±0,03	1310	1450	2,5	3D	16
2,25< d ≤ 2,75	±0,04	1280	1410	2,5	3D	16
2,75< d ≤ 3,00	±0,05	1280	1410	3,0	4D	16
3,00< d ≤3,50	±0,05	1240	1410	3,0	4D	14
3,50< d ≤4,25	±0,06	1170	1380	3,0	4D	12
4,25< d ≤4,75	±0,06	1170	1380	3,0	4D	12
4,75< d ≤5,50	±0,07	1170	1380	3,0	4D	12

Technical Specification of Galvanization Strength Steel Wire Level 3

Norminal Diameter mm	Diameter Deviation mm	Stress at 1% Extension, min, MPa	Ultimate Tensile Strength, min, MPa	Elongation in 250mm, min, %	Winding Test Mandrel Diameter mm	Twisting Test Twisting Times, min
Norminal Diameter mm	Diameter Deviation mm	Stress at 1% Extension, min, MPa	Ultimate Tensile Strength, min, MPa	Elongation in 250mm, min, %	Winding Test Mandrel Diameter mm	Twisting Test Twisting Times, min
1,24< d ≤ 2,25	±0,03	1450	1620	2,0	4D	14
2,25< d ≤ 2,75	±0,04	1410	1590	2,0	4D	14
2,75< d ≤ 3,00	±0,05	1410	1590	2,5	4D	12
3,00< d ≤3,50	±0,05	1380	1550	2,5	4D	12
3,50< d ≤4,25	±0,06	1340	1520	2,5	4D	10
4,25< d ≤4,75	±0,06	1340	1520	2,5	4D	10
4,75< d ≤5,50	±0,07	1270	1500	2,5	4D	10

Galvanized Layer

Norminal Diameter mm			Area Density of galvanization, min, g/m²
1,24< d ≤ 1,50			185
1,50< d ≤ 1,75			200
1,75< d ≤ 2,25			215
2,25< d ≤ 3,00			230
3,00< d ≤ 3,50			245
3,50< d ≤ 4,25			260
4,25< d ≤ 4,75			275
4,75< d ≤ 5,50			290

Initial Setting for Determining Stress at 1% Extension

Norminal Diameter mm	Initial Stress, MPa	Initial Setting of Extensometer, (in 250mm）

1,24< d ≤ 2,25	100	0.125
2,25< d ≤ 3,00	200	0.250
3,00< d ≤4,75	300	0.375
4,75< d ≤5,50	400	0.500

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