SUP9 Spring Steel Flat Barabout 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.
1. Steel Grade
JISAISI/SAE/ASTMDIN GBBSTypeSUP7926065Si7
1.090660Si2MnA250A58
250A61Alloy steelSUP9---55Cr3
1.717650CrMn---Alloy steelSUP9A5160------527A60Alloy steelSUP10615050CrV4
1.815950CrVA735A50Alloy steel
2. Chemical composition
MaterialChemical Composition (%) CSiMnSPCrVNiCuSUP70.56-0.641.5-2.00.6-0.9≤0.035≤0.035≤0.35-≤0.35≤0.25SUP90.52-0.60.17-0.370.65-0.95≤0.03≤0.030.65-0.950.1-0.2≤0.35≤0.25SUP9A0.56-0.640.17-0.370.7-1.0≤0.03≤0.030.7-1.0 ≤0.35≤0.25SUP100.47-0.550.15-0.350.65-0.95≤0.03≤0.030.8-1.10.15-0.25≤0.35≤0.25
Mill Certificate
3.Mechanical properties
Mechanical properties Tensile Strength
(MPa)Yield Strength
(MPa)Elongation
(%)Reduction of area
(%)HardnessSUP7≥1274≥1176≥5≥25≤321HBSUP9≥1225≥1080≥9≥20≤321HBSUP9A≥1225≥1078≥9≥20≤321HBSUP10≥1274≥1127≥10≥40≤321HB
4.Spring Steel Application
5.Packing & Loading
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 .