Jiangsu Runsu Machinery Materials Co., Ltd. supplies carbon steel and alloy steel round bars for machining, forging, machinery manufacturing, equipment parts and industrial applications.
We can support material selection, grade confirmation, cutting, heat treatment, surface processing and export delivery according to customer requirements.
Product Range
- Carbon Steel Round Bars
- Alloy Steel Round Bars
- Hot Rolled Round Bars
- Forged Round Bars
- Bright Round Bars
- Precision Ground Round Bars
- Quenched & Tempered Round Bars
- Custom Cut-to-Length Round Bars
Materials & Grades
We supply round steel bars in common carbon steel and alloy steel grades according to customer drawings, processing requirements and application conditions.
Common grades include:
- 20# / 35# / 45# / 50#
- Q235 / Q355
- 40Cr / 20Cr / 20CrMnTi
- 35CrMo / 42CrMo / 38CrMoAl
- AISI 1045 / 4140 / 4340 / 8620
- EN8 / EN19 / EN24 / 16MnCr5
Processing Options
We can support basic processing for round steel bars according to order requirements.
Available processing options include:
- Cutting to required length
- Peeling or bright surface processing
- Rough machining support
- Heat treatment support
- Quenching and tempering support
- Straightness and dimensional checking
- Export packing preparation
Applications
Round steel bars are commonly used for machining parts, shafts, pins, gears, sleeves, rollers, fasteners, tooling, mechanical components and equipment manufacturing.
If you are not sure which grade is suitable, please send us the application, required strength, hardness or drawing. We can help check suitable material options.
Send Your Round Bar Inquiry
To quote accurately, please send us the following information:
- Material grade or standard
- Diameter
- Length
- Quantity
- Surface condition
- Heat treatment requirement
- Application
- Destination port or delivery terms
- Drawings or technical documents, if available