A36 Steel Build Platform - ASTM A36/A36M
ASTM A36 steel plate is a highly versatile, low-carbon structural steel widely recognized for its excellent weldability, superior machinability, and cost-effectiveness. Typically supplied in a hot-rolled condition, A36 provides a balanced combination of strength and ductility, making it an ideal choice for applications that require moderate tensile strength and good formability. Its ease of cutting, shaping, and welding ensures efficient fabrication, reducing production time and costs.
This grade is commonly used in structural components for buildings and bridges, heavy equipment frames, industrial machinery, and general fabrication projects. Its reliability and affordability make it a preferred material across industries where durability, adaptability, and ease of processing are critical. Whether for large-scale infrastructure or everyday manufacturing, ASTM A36 delivers consistent performance and value.
- Inventory & Specs
- Chemical Composition
- Physical Properties
- Mechanical Properties
- Additional Info
- FAQs
Advanced Inventory Size Ranges for A36
| Type | Size Range | Specifications | Get a Quote |
|---|---|---|---|
| Build Platform | 0.500" - 5.000" | ASTM A36/A36M, UNS K02600 | Get a Quote |
Ideal for Additive Manufacturing Build Platforms
In Powder Bed Fusion (PBF) systems, platform rigidity and thermal stability are essential for maintaining part integrity and dimensional accuracy. ASTM A36 steel delivers dependable strength and durability, even under repeated thermal cycling. Its low-carbon composition ensures excellent weldability and machinability, while its robust structure minimizes distortion during high-temperature processes. This makes A36 an excellent choice for industries where strength, stability, and cost-efficiency are critical—such as energy, heavy equipment, and general industrial applications.
Why Choose United Performance Metals?
At United Performance Metals, we manufacture A36 Steel Build Platforms to meet demanding additive manufacturing requirements, offering:
- Thermal Stability: Maintains flatness and structural integrity through multiple build cycles.
- Exceptional Weldability & Machinability: Enables precision finishing and easy integration with PBF systems.
- Cost-Effective Strength: Provides a durable, economical solution for large-format builds.
- Custom Sizes: Available to fit your specific machine and production needs.
Other industry standards we comply with:
Common Trade Names
- ASTM A36 Plate
- Mild Steel Plate
- Carbon Structural Steel Plate
Industry Applications for A36
- Infrastructure Frames and Beams
- Shipbuilding
- Structural Supports
- Frames and Brackets
Chemical Composition
| Element | Percent by Weight Min | Percent by Weight Max | |
|---|---|---|---|
| C | Carbon | 0.25 | 0.29 |
| Mn | Maganese | 0.80 | 1.20 |
| Si | Silicon | 0.15 | 0.40 |
| P | Phosphorus | 0.04 | |
| S | Sulfur | 0.05 | |
| Cu | Copper | 0.20 | |
| Fe | Iron | Balance | |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Modulus of Elasticity | 200 GPa |
| Thermal Expansion | 12 × 10⁻⁶ /°C |
| Poisson's Ratio | 0.26 |
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength | ≥ 250 MPa (36 ksi) |
| Tensile Strength | 400–550 MPa (58–80 ksi) |
| Elongation | ≥ 20% |
| Hardness (Brinell) | 119–159 HB |
Additional Info
A brief history of A36 steel
A36 originated from early structural‑steel standards developed in the early 20th century. Before A36 existed, ASTM A7 and A9 were the dominant structural‑steel grades in North America. A36 formally became a standard when ASTM International published the A36 specification in 1960, replacing older grades due to its improved consistency and versatility. Its roots trace back to the 1930s, when ASTM began refining low-carbon structural steels.
How A36 was developed
A36 was engineered as a low‑carbon, hot‑rolled structural steel with a maximum carbon content around 0.26–0.29%. Its development focused on improving weldability, ductility, and consistency of mechanical properties. The shift from ASTM A7/A9 to A36 reflected advances in steelmaking that allowed tighter control of composition and performance. A36’s formulation emphasized predictable yield strength (36 ksi minimum), making it easier for engineers to design with confidence.
Early applications of A36
A36 quickly became the go‑to material for bridge construction, replacing ASTM A7 due to better properties and versatility. It was also widely adopted in building frames, shipbuilding, and general structural shapes such as beams, channels, and plates. Its ease of shaping, welding, and fabrication made it ideal for mass-production construction methods emerging in the mid 20th century.
How A36 is used today
A36 remains one of the most common structural steels in North America, often called the workhorse of the construction industry. Modern applications include building beams, floor plates, bridges, supports, base plates, machinery frames, brackets, gussets, and structural tubing.
Your Trusted Supplier of A36 Steel
UPM Advanced Solutions supplies A36 build plates for additive manufacturing applications.
Product FAQs
A36 is a low‑carbon, hot‑rolled structural steel defined by ASTM International with a minimum yield strength of 36,000 psi (36 ksi). It is known for excellent weldability, ductility, and machinability.
A36 is popular due to its good strength-to-cost ratio, excellent weldability and formability, wide availability, and its reliable, standardized mechanical properties.
Yes. A36 is known for excellent weldability, even with common welding processes like MIG, TIG, and stick welding. Its low carbon content minimizes cracking risk.
A36 can be surface‑hardened through processes like carburizing or flame hardening, but it does not respond strongly to through‑hardening because of its low carbon content.
A36 steel is used for additive manufacturing build plates because it delivers a practical balance of cost, machinability, weldability, and structural stability. Its properties make it a strong fit for additive manufacturing where extreme thermal or mechanical demands are not present.