Jiangsu Runsu Machinery Materials Co., Ltd. supplies carbon steel and alloy steel materials for steel pipes, round steel bars, forged shafts and machined shafts.
We support material selection and grade confirmation according to customer drawings, standards, application conditions and processing requirements.
Main Material Categories
Carbon Steel
Carbon steel materials are widely used for general machinery, structural parts, steel pipes, round bars and common industrial components.
Alloy Steel
Alloy steel materials are used when higher strength, wear resistance, toughness, hardenability or heat treatment performance is required.
Engineering Steel
Engineering steel materials are commonly used for shafts, gears, rollers, pins, sleeves, machinery parts and custom processed components.
Common Chinese Grades
We can supply or source common Chinese steel grades according to customer requirements.
Common grades may include:
- 20#
- 35#
- 45#
- 50#
- Q235
- Q355
- 20Cr
- 40Cr
- 20CrMnTi
- 35CrMo
- 42CrMo
- 38CrMoAl
International Grade References
We can also communicate based on international grade references and equivalent material systems.
Common references may include:
- AISI 1020 / 1045
- AISI 4130 / 4140 / 4340 / 8620
- C45 / CK45
- EN8 / EN19 / EN24
- 16MnCr5
- 34CrNiMo6
- 36CrNiMo4
- SCM415 / SCM440
- SNCM439
Standards We Can Discuss
Available standards may include GB, ASTM, ASME, AISI, SAE, EN, DIN, JIS and other customer-specified standards.
For steel pipe inquiries, customers may provide ASTM, ASME, API, EN, DIN, GB or JIS standards.
For round bars and shaft materials, customers may provide Chinese, American, European, German, Japanese or other equivalent grade references.
Material Selection Support
If you are not sure which material grade is suitable, please send us your application, required strength, hardness, heat treatment condition, size, quantity and drawing if available.
We can help check possible material options based on your technical requirements and local supply availability.
Important Note
Different standards and grades may have differences in chemical composition, mechanical properties, heat treatment condition and supply availability.
Before quotation or production, final material confirmation should be based on drawings, technical specifications, purchase requirements and agreed standards.
Send Your Material Requirement
To help us check material availability and quote accurately, please send:
- Material grade or standard
- Product type
- Size and quantity
- Heat treatment requirement
- Mechanical property requirement
- Application
- Drawing or technical specification, if available