China B7 B16 Cold Drawn Steel Round Bar for Threaded Rod

B7 B16 Cold Drawn Steel Round Bar for Threaded Rod
about us
Qingdao Highleader International Supply Chain Co., Ltd. founded in 2012, located in Qingdao City,
Shandong, China.Qingdao Highleader International Supply Chain Co., Ltd. is a comprehensive
enterprise who specializes in steel products processing and trading. Since the company founded,
has been committed to trading steel products including steel billets, tube billets, steel round bar
and square bar,steel pipe,profile steel etc.In the further development and demand of the market,
our comapny invest more energy in further processing steel products with more technicial, to
meet the market demand and promote comapny development.
In 2016, we established our own steel processing center, built cold drawn, annealing, normalizing,
quenching&tempering production line and peeling, grinding, chamfering finishing line. Installed full
sets testing and inspecting equipments, to ensure the products quality stability and average. Take
advantage of our strong production capacity,to meet customer's personalized and professional
requirements.
about Cold Drawn Steel Bar
Cold drawn steel bar is made from hot rolled steel bars or wire rod. Depend on the shape of the
mould,cold drawn steel bar can can be classified as cold drawn steel round bar,square bar,hexagonal
bar, flat bar and other shapes of steel bar or profiles.By cold drawing, the dimensional tolerances,
straightness and surface roughness of the bars will be improved. In the meanwhile, the mechanical
properties will be enhanced, too.
B7 steel round bar is a Chromium-Molybdenum through-hardening steel of medium
harden-ability. It is a general purpose high-tensile steel with medium strength level and good
impact properties.
B7 cold drawn steel bar we supply includes following advantages:
-Consistent Mechanical Properties
-Even hardness on the whole bars/Tougher and Increased strength
-No brittle, UT testing/Precision size tolerance/Good straightness
-Good Roughness/Professional technical service/Competitive price/Fast delivery
B7 Cold Drawn Steel Round Bar Specification
1. B7 Equivalent Material

GBASTM/SAE/AISI DIN SCMAS /NZS144442CrMoASTM4140/SAE4140/AISI414042CrMo4 / 42CrMoS4SCM440AS4140

2.B7 Chemical Composition

MaterialChemical Composition %SAECSiMnSPCrMoSAE41400.38-0.430.15-0.350.75-1.00.035max0.035max0.80-1.100.15-0.25

3.B7 Mechanical Properties

Mechanical Properties after Quenched&TemperedYield Strength (MPa)Tensile Strength (MPa)ElongationReduction of areaAKV (J)930 min1080 min12% min>45% >63

4.B7 Steel Applications
High strength stud bolt, Threaded Rods, wind power bolt, prestressed anchor bolts,
post stressed anchor bolt, Steel Tie Rod, tie bar, tension rod, Tension Bar etc.Shaft,
axle shaft, crankshaft, shaft for sleeve, linear shaft, pump shaft, rotor shaft, sensor
shaft, spline shaft, drive shaft, mandrel shaft, transmission shaft, screw rod etc.
CNC machines, precision CNC machines, ejector pins and ejector rods etc.
Processing

Cold Drawn Products Show
Equipments
Packing & Loading
Our Services
-Capability from Raw material to processing to final products under one Roof
-Highest customer satisfaction
-Economy of products
-Absolute reliability
-Highly-qualified and motivated personnel
-No tolerance of errors
-Continuous optimisation of all processes

FAQ
Q: Are you trading company or manufacturer
A: We have our own factory with complete production equipment and inspection facilities
also doing steel bars trading.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not
in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free of charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Amount<=10,000USD, 100% in advance. Amount>=10,000USD, 30% T/T in advance,
balance before shipment.
If you have another question, please feel free to contact us .