Factory Cheap Hot High Tensile Wheel Bolt - NPR TRUCK REAR Wheel Bolt factory wholesale – JINQIANG

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Sticking towards the theory of Super Good quality, Satisfactory service ,We are striving to become a superb business enterprise partner of you for 10.9 Truck Hub Bolt, Broken U Bolt, 12.9 Truck Wheel Bolt, We sincerely welcome overseas buyers to consult for that long-term cooperation as well as the mutual progress.

Factory Cheap Hot High Tensile Wheel Bolt - NPR TRUCK REAR Wheel Bolt factory wholesale – JINQIANG Detail:

Manufacturing process of high strength bolts

Shelling and descaling of high-strength bolts

The process of removing iron oxide plate from cold heading steel wire rod is stripping and descaling. There are two methods: mechanical descaling and chemical pickling. Replacing the chemical pickling process of wire rod with mechanical descaling improves productivity and reduces environmental pollution. This descaling process includes bending method, spraying method, etc. The descaling effect is good, but the residual iron scale cannot be removed. Especially when the scale of the iron oxide scale is very strong, so the mechanical descaling is affected by the thickness of the iron scale, the structure and the stress state, and is used in carbon steel wire rods for low-strength fasteners. After mechanical descaling, the wire rod for high-strength fasteners undergoes a chemical pickling process to remove all the iron oxide scales, that is, compound descaling. For low carbon steel wire rods, the iron sheet left by mechanical descaling is likely to cause uneven wear of grain drafting. When the grain draft hole adheres to the iron sheet due to the friction of the wire rod and the external temperature, the surface of the wire rod produces longitudinal grain marks.

Our Hub bolt quality standard

10.9 hub bolt

hardness	36-38HRC
tensile strength	≥ 1140MPa
Ultimate Tensile Load	≥ 346000N
Chemical Composition	C:0.37-0.44 Si:0.17-0.37 Mn:0.50-0.80 Cr:0.80-1.10

12.9 hub bolt

hardness	39-42HRC
tensile strength	≥ 1320MPa
Ultimate Tensile Load	≥406000N
Chemical Composition	C:0.32-0.40 Si:0.17-0.37 Mn:0.40-0.70 Cr:0.15-0.25

FAQ

Q1: What else products you can make without wheel bolt?
Almost all kinds of truck parts we can make for you. Brake pads, center bolt, U bolt, steel plate pin, Truck Parts Repair Kits, casting, bearing and so on.

Q2: Do you have an International Certificate of Qualification?
Our company has obtained the 16949 quality inspection certificate, passed international quality management system certification and always adhere to automotive standards of GB/T3098.1-2000.

Q3: Can products be made to order?
Welcome to send drawings or samples to order.

Q4: How much space does your factory occupy?
It’s 23310 square meters.

Q5: What is the contact information?
Wechat, whatsapp, E-mail, mobile phone, Alibaba, website.

Q6: What kind of materials are there?
40Cr 10.9,35CrMo 12.9.

Q7: What is the surface color?
Black phosphating, gray phosphating, Dacromet, electroplating, etc.

Q8: What is the annual production capacity of the factory?
About a million pcs of bolts.

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Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for Factory Cheap Hot High Tensile Wheel Bolt - NPR TRUCK REAR Wheel Bolt factory wholesale – JINQIANG , The product will supply to all over the world, such as: Singapore, Boston, Surabaya, With the goal of zero defect. To care for the environment, and social returns, care employee social responsibility as own duty. We welcome friends from all over the world to visit and guide us so that we can achieve the win-win goal together.

10.9 Truck Wheel Bolt