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Name Brand Specifications Executive standard Chemical composition analysis (melting composition)% Performance characteristics Purpose
C Si Mn P  ≤ S  ≤ Other
Hot rolled wire rod for prestressed steel wire and strand YL72B F8-20 GB/T 24238 0.70-0.75 0.10-0.30 0.60-0.90 0.025 0.025  
The decarburization layer is small, the surface defects are few, the sorbite rate is high, and the wire rod has excellent drawing performance. Organization and performance are higher than the requirements of national standards.
 
It is mainly used for prestressed round steel wire, scored steel wire, spiral steel wire and steel strand.
YL82B F8-20 0.80-0.85 0.10-0.30 0.60-0.90 0.025 0.025 V≤0.15
WG70A F5.5-8
Supply technical agreement
0.68-0.74 0.15-0.30 0.45-0.60 0.025 0.020  
WG80A F5.5-8 0.78-0.83 0.15-0.28 0.45-0.60 0.025 0.020  

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Name Brand Specifications Executive standard Chemical composition analysis (melting composition)% Performance characteristics Purpose
C Si Mn P  ≤ S  ≤
Hot rolled wire rod for steel cord WGLX72A F5.5-6.5 GB/T 27691 0.70-0.75 0.15-0.30 0.45-0.60 0.025 0.015
The decarburization layer is small, the inclusions are few, the tensile strength is good, the sorbite rate is high, and the wire rod has excellent plasticity and ductility.
Mainly used for all kinds of meridian, bead wire, cord.
WGLX82A F5.5-6.5 0.80-0.85 0.15-0.30 0.45-0.60 0.025 0.015
WGLX92Cr F5.5-6.5 0.90-0.94 0.15-0.30 0.20-0.40 0.015 0.015

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Name Brand Specifications Executive standard Chemical composition analysis (melting composition)% Performance characteristics Purpose
C Si Mn P  ≤ S  ≤ Other
Hot rolled wire rod for cold heading steel SWRCH22A F5.5-6.5 JIS G3507-1 0.18-0.23 ≤0.10 0.70-1.00 0.030 0.035 Al≥0.02
Good metallographic structure, few surface defects, high purity of steel, high dimensional accuracy, low cracking rate of cold heading. The product performance is higher than the requirements of relevant standards.
It is mainly used for various fasteners, self tapping, weling nails and other standard parts.
SWRCH25K F5.5-20 0.22-0.28 0.10-0.35 0.30-0.60 0.030 0.035  
SWRCH35K F5.5-24 0.32-0.38 0.10-0.35 0.60-0.90 0.030 0.035  
ML08Al F5.5-24 GB/T 6478 0.05-0.10 ≤0.10 0.30-0.60 0.035 0.035 Al≥0.02
ML40Cr F5.5-24 0.38-0.43 0.10-0.30 0.60-0.90 0.025 0.025 Cr 0.90-1.20

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Name Brand Specifications Executive standard Chemical composition analysis (melting composition)% Performance characteristics Purpose
C Si Mn P  ≤ S  ≤ Cr
Hot rolled wire rod for bearing steel GCr15 F5.5-20 GB/T 18254 0.95-1.05 0.15-0.35 0.25-0.45 0.025 0.020 1.40-1.65
The metallographic structure and surface defects are higher than the relevant requirements of national standards. The steel has high purity, high dimensional accuracy and excellent fatigue resistance.
For bearings and ball parts

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Name Brand Specifications Executive standard Chemical composition analysis (melting composition)% Performance characteristics Purpose
C Si Mn P  ≤ S  ≤ Other
Non alloy steel wire rod for wire making C70DA F5.5-6.5 GB/T 24242.2供货技术协议 0.68-0.73 0.10-0.30 0.60-0.90 0.025 0.025  
High sorbite rate, high cleanliness and good comprehensive mechanical properties
bead wire
C72DA F5.5-6.5 0.70-0.75 0.10-0.30 0.60-0.90 0.025 0.025  
C82DA F5.5-6.5 0.80-0.85 0.10-0.30 0.60-0.90 0.025 0.025  

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Name Brand Specifications Executive standard Chemical composition analysis (melting composition)% Performance characteristics Purpose
C Si Mn P  ≤ S  ≤
High quality carbon structural steel 20 Φ18~130 GB/T 699 0.17-0.23 0.17-0.37 0.35-0.65 0.035 0.035 It has enough shaping and toughness, and its performance is higher than the relevant requirements of national standards Small carburized parts such as small shaft, small module gear and piston pin
45 Φ18~130 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 The comprehensive mechanical properties are good, and the properties are higher than the relevant requirements of national standards Small section, medium load modulators, such as spindle, crankshaft, gear, connecting rod, sprocket, etc
55 Φ18~65 0.52-0.60 0.17-0.37 0.50-0.80 0.035 0.035 High strength, hardness and performance are higher than the relevant requirements of national standards t is used to make connecting rod, roller, gear, flat spring, wheel rim, rim, etc. and also as casting

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