Gnee Steel (Tianjin) Co., Ltd. is one of the most professional stpg490 angle steel manufacturers and suppliers in China, also supports customized service. If you're going to buy stpg490 angle steel made in China, welcome to get free sample from our factory. Quality products and low price are available.
STPG490 Angle Steel
STPG490 L shaped Angle Steel Product Description
Introduction of STPG490 Angle Iron
Name: STPG490 (Japanese Industrial Standard, JIS G 3114)
Type: Equilateral high-strength carbon steel angle designed for structural and mechanical applications.
Leg length (A×B): 25×25 mm to 200×200 mm (equal legs).
Thickness (t): 4 mm to 22 mm.
Length: Standard 6–12 meters (customizable lengths).
Main components of STPG490 angle iron
Carbon (C): ≤0.23%
Manganese (Mn): ≤1.50%
Phosphorus (P): ≤0.035%
Sulfur (S): ≤0.035%
Silicon (Si): ≤0.55%
Additional elements: May include chromium (Cr) or nickel (Ni) to enhance durability.
Mechanical properties of STPG490 equal angle steel
Yield strength (σs): ≥325 MPa
Tensile strength (σb): 490–620 MPa
Elongation (δ): ≥18% (standard specimen)
Impact toughness : ≥30 J at -20°C (Charpy V-notch test)
Hardness : ≤207 HB (Brinell hardness)
STPG490 Angle Iron Specifications
| Product name | Equal Angle Steel 6m/12m |
| Length | 6M/9M/10M/12M, OR Cut as your demands |
| Other processing service | Hot dip Galvanized, Pre-galvanized, Color Painting, Coated, Cutting, Bending, Punching as long as you can tell us your requirement. |
| Material | S235JR S275JR S355JR/JO/J2 A36 A572GR50 A572GR60 A992 SS/SM/STPG400 SS/SM/STPG490 SS/SM/STPG540 |
| Usage | Mechanical & Manufacture, Steel strcuture, Shipbuilding, Bridging, Automobile Chassis. |
| Packing | tied up with steel strips and wrapped with water proof paper |
| Delivery Time | Delivered within 3-7 days after the receipt of deposit |
STPG490 Equal Angle Performance
Key features of STPG490 structural angle
Balanced properties: Combines strength and ductility for a wide range of applications.
Weldability: Compatible with common welding methods, preheating for thick sections.
Fatigue resistance: Suitable for cyclic loading environments.
Corrosion resistance: Coatings (e.g. galvanizing) are required in harsh or marine conditions.
Applications of STPG490 structural steel angle
Industrial structures: Pressure vessel frames, machinery supports, conveyor systems.
Civil engineering: Bridges, transmission towers, seismic reinforcement.
Energy infrastructure: Power plant components, pipeline supports.
Transport: Railcar chassis, heavy truck frames.
Quality control of STPG490 hot rolled steel angle
Certification: Factory Test Certificate (MTC) in accordance with EN 10204 3.1.
Testing: Ultrasonic testing, tensile/impact testing and dimensional accuracy checks.
GNEE Steel Angle Steel Manufacturer
With 20 years of experience and expertise in steel materials and 18 years of experience in exporting and supplying quality products and excellent services, we provide one-to-one service for every customer.
We can accept various orders from 20 tons to 2000 tons or even more. We have also obtained certifications from third-party inspection agencies such as DNV, BV, SGS, ABS, LR, GL, RINA, CCSI, etc.
