Hot Rolled JIS G3101 SS400 Steel Angle Bar Equal & Unequal Angle Steel Manufacturer
| Attribute | Details |
| Product Name | JIS G3101 SS400 Angle Steel Bar |
| Base Material | Carbon Steel |
| Steel Grade | SS400 |
| Standard Compliance | JIS G3101 |
| Profile Type | Equal Angle / Unequal Angle |
| Production Method | Hot Rolled |
| Section Shape | L-shaped profile |
| Leg Dimension | 20×20 mm up to 250×250 mm |
| Thickness Range | 3 mm – 35 mm |
| Standard Length | 6 m, 9 m, 12 m; custom lengths available |
| Surface Treatment | Black finish, Oiled, Pickled, Hot-dip Galvanized, Painted |
| Dimensional Tolerance | Compliant with JIS G3101 specifications |
| Value-added Processing | Cutting, Drilling, Punching, Welding, Galvanizing, Painting, Bending |
| Typical Applications | Steel structural works, building construction, warehouse facilities, industrial plants, bridge projects, transmission towers, machinery fabrication, infrastructure developments |
| Key Characteristics | High structural strength, superior weldability, easy fabrication, reliable toughness, cost-efficient, long service life |
| Certifications | ISO 9001, SGS, BV, Mill Test Certificate (MTC) issued per batch |
| Quality Inspection | Chemical composition analysis, mechanical property testing, dimensional verification, surface quality check |
| Packaging Options | Steel strap bundling, waterproof wrapping, wooden pallet packaging, or customized as requested |
| Lead Time | 7–15 working days, subject to order volume and specifications |
| Incoterms | FOB, CFR, CIF, EXW |
| Payment Method | T/T |
| Country of Origin | China |
| Supplier | Royal Steel Group |
| Monthly Output | 50,000+ metric tons |
| Minimum Order | 25 metric tons |
| Customization Support | OEM / ODM services accepted |
| JIS G3101 SS400 Angle Steel Bar Chemical Composition | |
| Element | Composition (%) |
| Carbon (C) | ≤ 0.25 |
| Silicon (Si) | ≤ 0.35 |
| Manganese (Mn) | ≤ 1.40 |
| Phosphorus (P) | ≤ 0.050 |
| Sulfur (S) | ≤ 0.050 |
| JIS G3101 SS400 Angle Steel Bar Mechanical Properties | |
| Property | Value |
| Tensile Strength | 400–510 MPa |
| Yield Strength (Typical, t ≤ 16 mm) | ≥ 245 MPa |
| Elongation (Typical) | ≥ 17–21%* |
| Hardness | Approx. 120–160 HB |
| Density | 7.85 g/cm³ |
| Elastic Modulus | 200 GPa |
| Poisson's Ratio | 0.3 |
Production Process
Our JIS G3101 SS400 angle steel is made via a complete controlled production procedure to secure consistent quality.
Heating
Quality carbon steel billets are heated to proper rolling temperature for better plasticity and even material structure.
Rolling
Hot billets pass continuous rolling units and are gradually formed into angle steel with accurate measurements.
Forming
Professional forming equipment manufactures equal and unequal angles while keeping precise sizes and stable structure.
Cooling
Controlled cooling is applied to finished profiles to stabilize mechanical features and enhance strength and toughness.
Straightening & Cutting
Angle bars are straightened and cut into standard or custom lengths to match project demands.
Inspection & Packing
Every batch receives thorough dimensional, surface and mechanical testing. Qualified products are well packaged for safe international transport.
High-quality hot rolled steel angle bars are widely used across construction, industrial, and fabrication projects due to their excellent weldability, formability, and cost-effectiveness.
Key Applications
Construction & Structural Projects
Building frames, roof trusses and bracing systems
Bridges, towers and civil engineering structures
Scaffolding, walkways and service platforms
Industrial & Machinery
Equipment frames, support brackets and machine bases
Industrial racks, shelving and logistics handling structures
Transportation & Shipbuilding
Vehicle frames, trailers and rail transport carriages
Ship hull reinforcements, deck stiffeners and marine constructions
General Fabrication
Custom welded assemblies and metal fabrication works
Fences, gates and decorative structural components
hot-rolled steel angle bars are versatile, cost-effective, and ideal for a wide range of structural and industrial applications. Their advantages include:
Excellent Weldability
Easily joined with other steel components to build strong, durable structures.
Good Forming & Machining Performance
Able to be cut, bent and formed as required, resisting cracks during processing.
Cost-Efficient Structural Steel
Provides solid strength and durability with a favourable price compared to other structural steels.
Reliable Mechanical Characteristics
Stable yield strength, tensile strength and elongation ensure consistent working performance.
Rich Specifications Available
Equal & unequal angle steel sizes range from 20×20mm to 200×200mm, thickness 3–20mm, standard lengths 6/9/12m for various project demands.
High Durability
Good abrasion resistance; applicable indoors and outdoors when equipped with suitable surface treatment.
Broad Application Scope
Well-suited for structural frames, mechanical equipment, warehouse racks, bridges, towers and other constructions.
Packaging is generally naked, steel wire binding, very strong.
If you have special requirements, you can use rust proof packaging, and more beautiful.
Transportation: Express (Sample Delivery), Air, Rail, Land, Sea shipping (FCL or LCL or Bulk)
Q1: What sizes and types of SS400 angle steel do you supply?
We provide equal and unequal angle steel bars. Our size range covers 20×20 mm up to 250×250 mm, with thickness options from 3 mm to 35 mm. Standard factory lengths are 6 m, 9 m and 12 m, and bespoke dimensions can be arranged on demand.
Q2: Do you support custom processing?
Certainly. We deliver a full range of processing services including cutting, drilling, punching, welding, hot-dip galvanizing and painting. Custom fabrication can be carried out strictly based on clients’ drawings and project demands.
Q3: What measures do you take to guarantee product quality?
Every batch is subject to thorough quality checks, covering chemical composition analysis, mechanical property tests, dimension verification and surface examination. Mill Test Certificates (MTC) are provided, and third-party inspection by SGS, BV or other institutes is acceptable upon request.
Q4: What are your MOQ and lead time?
The minimum order quantity is 5 tons for regular orders. Goods from stock can be dispatched within 7–15 days. Lead time for custom production normally runs 20–30 days, subject to specifications and order volume.
Q5: What advantages does Royal Steel Group bring to buyers?
Royal Steel Group provides direct factory rates, tailored manufacturing, rigorous quality management and efficient global shipment supported by seasoned export teams. Drawing on more than 10 years in international steel trading, we deliver dependable JIS G3101 SS400 angle steel solutions for construction, infrastructure and industrial projects across the globe.
-
High-Quality ASTM A36 Hot Rolled Steel Angle Ba...
-
American Steel Structural Profiles – ASTM A36 A...
-
ASTM A36 Angle Steel | American Structural Prof...
-
Factory Direct Sale SS400 Carbon Steel Angle Ba...
-
JIS G3101 SS400 Angle Steel Bar | Hot Rolled Eq...
-
ASTM A36 Equal L Shape Carbon Steel Angle Steel...
