Contact Platform Support
Help CenterAngle Steel & Angle Bar，Q235B、Q355B、CCSA、AH36、DH36、Q235NH、Q355NH
Related Products
-
Steel H Beam & H Section Steel，Q235B、Q355B、Q390、Q460、AH36、DH36、Q235NH、Q355NHNegotiableMOQ: 5 Metric Tons -
Steel Pipe & Tube & Galvanized Steel Pipe，ASTM A53 Gr.A/Gr.B、BS1387、EN 10255、JIS G3452NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Alloy Steel Pipe，P11、P12、P22、P91、P92、T11、T12、T22、T91NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Petroleum Steel Pipe，H40、J55、K55、N80-1、N80-Q、L80-1、P110、Gr.B、X42、X52、X60、X65、X70、X80NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & High Pressure Boiler Tube，ASTM A213、ASTM A335、ASTM A192、ASTM A179、EN 10216-2、JIS G3461、JIS G3462NegotiableMOQ: 5 Metric Tons
1. Product Overview
Angle steel, also called angle iron, is L-shaped 90° long section steel, divided into hot rolled equal angle steel, hot rolled unequal angle steel and cold formed thin-wall angle steel. It is hot rolled or cold bent from carbon steel and low alloy billets, with standard inner arc transition, precise right angle and stable cross-section, featuring excellent performance for welding, punching, bending and bolt assembly.Compliant with Chinese standards: GB/T 706-2016 Hot Rolled Section Steel, GB/T 6723 Cold Formed Section Steel. We can produce to international standards including ASTM A36/A572 Gr50, EN S235JR/S355JR, JIS G3192, DIN for global export. Material grades cover carbon structural steel, high strength low alloy steel, medium carbon quality steel and alloy structural steel, stainless steel excluded.
2. Material Grade Classification
2.1 General Low Carbon Angle Steel (General Engineering Main Material)
Grades: Q195, Q235B, SS400, S235JR, A36Features: Good ductility, easy welding, cost-effective, widely used for general brackets, workshop trusses, PV supports, auxiliary tower parts and embedded components
2.2 High Strength Low Alloy Angle Steel (Heavy Load & Low Temperature Projects)
Grades: Q355B/C/D, S355JR, A572 Gr50, Q460Features: High yield strength, superior low-temperature impact toughness, strong load capacity, for bridges, transmission towers, heavy steel structures, cold storage and severe cold region projects
2.3 Medium Carbon Structural Angle Steel (Machining Parts)
Grades: 20#, 35#, 45#, S45C, 1045Features: Balanced strength, available for quenching & tempering heat treatment, for machinery bases, fixtures, flange blanks and transmission supports
2.4 Alloy Structural Angle Steel (Wear-Resistant Heavy-Duty Components)
Grades: 40Cr, 65Mn, 60Si2MnFeatures: Good hardenability, anti-fatigue and wear resistance, specially for construction machinery wear supports, spring fixing frames and heavy-duty tooling fixtures
3. Surface Treatment
Hot Rolled Black Surface Angle Steel: Original mill scale without coating, preferred base material for steel workshop, indoor brackets, secondary painting & galvanizing
Hot-Dipped Galvanized Angle Steel (GI): Fully degreased & pickled before galvanizing, thick & firmly bonded zinc layer with strong salt spray resistance and long anti-corrosion life, for outdoor towers, PV systems, power earthing and coastal projects
Electro-Galvanized Angle Steel: Thin bright zinc coating with neat appearance, for indoor cabinets, small decorative brackets and weak current frames
Cold Formed Bright Thin-Wall Angle Steel: Cold bent from steel strip at ambient temperature, oxide-free surface & ultra-precise dimension, for light shelves and equipment housing frames
Anti-Rust Oil / Painted Angle Steel: Temporary rust protection with customizable color, for storage and ocean container transport anti-oxidation
4. Dimension Specifications
4.1 Hot Rolled Equal Angle Steel (Symbol ∠L×L×t)
Leg width: 20,25,30,40,50,63,70,75,80,90,100,125,140,160,180,200,250mmThickness: 3~24mm, multiple thickness options for each leg width
4.2 Hot Rolled Unequal Angle Steel (Symbol ∠B×b×t)
Size range: 30×20 ~ 200×150mm, thickness 3~18mm, material-saving for asymmetric load-bearing structures
4.3 Cold Formed Thin-Wall Angle Steel
Leg width 20~100mm, thickness 1.2~3.0mm, lightweight frame dedicated
4.4 Standard Fixed Length
Standard delivery lengths: 6m,9m,12m; customized multiple lengths 1–15m and non-standard cutting available
4.5 Supply Form
Only straight bars bundled, no coils; single bundle weight 1–4 MT, standard 12m bundle approx 2 MT
4.6 Theoretical Weight Formula
Weight per meter of equal angle steel (kg/m)=0.00785 × thickness × (2×leg width − thickness)Example: ∠50×50×5 = 0.00785×5×(100−5)=3.73 kg/m
5. Main Mechanical Properties
| Grade | Min Yield ReL (MPa) | Tensile Rm (MPa) | Min Elongation A (%) | Typical Application |
|---|---|---|---|---|
| Q235B | 235 | 370–500 | 26 | Civil construction, general brackets, galvanizing substrate |
| Q355B | 355 | 470–630 | 21 | Bridges, transmission towers, heavy steel structure, low temp projects |
| 45# | 355 | 600–800 | 16 | Machining, tooling base, flange blank |
| 40Cr | 540 | ≥980 | 9 | Wear-resistant heavy-duty mechanical parts |
Processing performance: 180° cold bending without crack; compatible with manual arc welding, CO2 shield welding, punching, cutting and bolt connection.
6. Product Types & Applications
Hot Rolled Black Equal Angle Steel: Workshop roof truss, wall column, storage rack, pipe bracket, stair frame, temporary construction fence, equipment foundation
Hot-Dipped Galvanized Anti-Corrosion Angle Steel: PV support, high-voltage transmission tower, lightning protection earthing, municipal guardrail, coastal dock, sewage treatment equipment frame
Hot Rolled Unequal Angle Steel: Bridge fittings, tower crane base, storage tank support, asymmetric equipment frame, cable trench bracket
Cold Formed Thin-Wall Bright Angle Steel: Light storage shelf, power distribution cabinet frame, indoor decorative keel, small automation equipment housing
Medium Carbon / Alloy Machining Angle Steel: Mechanical tooling fixture, gear base, construction machinery wear plate, heavy vehicle auxiliary bracket
High Strength Low Alloy Angle Steel: Highway bridge steel structure, wind power tower auxiliary parts, large storage tank support, heavy workshop load-bearing frame
7. Production Process
Hot Rolled Angle Steel
Billet heating → Continuous high-temperature forming rolling → Inner arc shaping → Straightening & leveling → Fixed-length cutting → Surface cleaning → Sampling test for dimension & mechanical property → Bundling & warehousing
Cold Formed Thin-Wall Angle Steel
Hot rolled steel strip → Pickling & phosphating → Continuous cold bending at ambient temperature → Fixed-length cutting → Polishing / galvanizing → Inspection & warehousing
8. Export Standard Packing, Storage & Transportation
8.1 Bundling Standard
All straight bars fastened with Φ7 galvanized steel strips: 4 strips for bars under 9m, 6 strips for standard 12m, 8–9 strips for extra-long profiles, tight bundles without scattering. Metal tag attached to each bundle with bilingual grade, size, heat number, weight & applicable standard; waterproof PVC label supplied for export. Extra anti-rust oil spraying and full PE film wrapping available to resist salt fog during ocean shipment.
8.2 Storage Rules
Stack on raised supports in dry & ventilated yard, keep galvanized angle steel away from long-term rain and water accumulation; separate storage by grade, size and length to avoid batch mixing.
8.3 Transportation
Domestic: Full truck load & railway wagon; Export: 20GP/40GP container & bulk carrier shipping, single vessel loading capacity 5,000–20,000 MT
9. Lead Time, Factory Inspection & Documents
Lead Time: 3–5 working days for spot goods; 7–12 working days for customized hot-dipped galvanized, cold formed bright, medium carbon & alloy grades
Factory Inspection: Sampling test of dimension, right angle precision, straightness, tensile strength, cold bend & zinc coating thickness for each batch; unqualified goods forbidden to deliver
Export Supporting Documents: Original Mill Test Certificate (MTC), factory certificate of conformity; SGS, BV, CE third-party inspection reports available for customs clearance worldwide
10. Core Product Advantages
Stable right angle precision, uniform inner arc, low torsion & lateral bending, low loss during punching and assembly processing
Excellent welding ductility, no crack after cold bending, convenient on-site cutting, drilling and assembly
Complete material range covering light civil projects to heavy bridges and construction machinery
Multiple anti-corrosion surface treatments available for indoor, outdoor and coastal high-corrosion environments
Custom non-standard leg width, thickness, fixed cutting length and pre-drilled holes to match drawing special requirements
Manufactured compliant with multiple international standards for domestic & overseas trade, full set of export certification documents provided
Direct supply from factory with sufficient spot inventory, stable delivery for large-volume long-term export orders
Send Inquiry to This Supplier
You May Also Like
-
Steel Pipe & Tube & Precision Steel Tube，10#、20#、35#、45#、16Mn、20Cr、40Cr、20CrMo、35CrMo、42CrMo、27SiMnNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Pipe，ASTM A297、ASTM A608、JIS G5202、ISO 2531NegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Hot Rolled Steel Coil，ASTM A36、ASTM A572 Gr50/Gr60、JIS G3101 SS400、JIS G3131 SPHC/SPHD/SPHE、EN 10025 S235JR、S355JRNegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Cold Rolled Coil，DC01 / SPCC、DC03 / SPCD、DC04 / SPCENegotiableMOQ: 5 Metric Tons
-
Steel Coil & Strip & Color Coated Coil，DX51D+AZ/SGCC、DX52D+AZ、DX53D+AZ、G550NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Pressure Vessel Plate，15CrMoR、14Cr1MoR、12Cr2Mo1R、12Cr1MoVR、P235GH、P265GH、16Mo3、13CrMo44NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Checkered Steel Plate，2.0mm、2.5mm、3.0mm、3.5mm、4.0mm、5.0mm、6.0mm、8.0mm、10mm、12mmNegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Shipbuilding Steel Plate，CCSA、CCSB、CCSD、CCSE、AH32、DH32、EH32、AH36、DH36、EH36NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Boiler Steel Plate，Q245R、Q345R、15CrMoR、12Cr1MoVRNegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Steel Sheet Pile，600×300×12mm、600×300×14mm、600×300×16mm、400×100×10.5mm、400×125×13.0mmNegotiableMOQ: 5 Metric Tons
