Guangdong LiYou Steel Structure Engineering Co., Ltd.        +8619147784007     liyousteelstructure@outlook.com
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Structural Steel Material Grades

 

Why Engineers Trust Our Steel Structure

✅ Grade Accuracy - Spectrometer tested
✅ Global Compliance - Meet GB, ASTM, EN, JIS
✅ Technical Support - Grade selection assistance
✅ Stock Availability - 5,000+ tons ready for shipment

Additional Services:

  • Laser etching for material traceability

  • Custom cutting to your required lengths

  • Just-in-time delivery programs

 

 

Availability:
Quantity:
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  • Online technical support, Onsite Installation, Onsite Training, Onsite Inspection, Free spare parts, Return and Replacement, Other

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  • garage shed, storage closet, poultry houses, Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, supermarket, Warehouse, Workshop, Park, Farmhouse, Courtyard, Other, Kitchen, Bathroom, Home Office, Living Room, Bedroom, Dining, Babies and kids, Outdoor, Storage & Closet, Exterior, Wine Cellar, Entry, Hall, Home Bar, Staircase, Basement, Garage & Shed, Gym, Laundry

  • steel

  • Guangdong, China

  • Modern

  • Lifetime

  • Liyou

  • LYB-001

  • CE Certification

  • Industrial Commercial

  • C.Z Shape Steel Channel

  • Sliding Door

  • Customized Color

  • Sandwich Panel Optional

  • Aluminum Alloy Sliding Window

  • SAP2000/AutoCAD /PKPM /3D3S/TEKLA

  • Hot Dip Galvanized

  • 25-60 days

Structural Steel Material Grades Explained | Global Standards Comparison

At Liyou Steel, we fabricate structural components using 18+ steel material grades to meet international project requirements. This guide helps you select the optimal grade for your structural application.

Most Common Structural Steel Grades

1. Chinese Standards (GB)

Grade Yield Strength Tensile Strength Key Applications
Q235 235 MPa 370-500 MPa Light structures, frames
Q355 355 MPa 470-630 MPa Bridges, high-rises
Q390 390 MPa 490-650 MPa Heavy industrial
Q460 460 MPa 550-720 MPa Specialized construction

2. American Standards (ASTM)

Grade Equivalent Key Properties
A36 Q235 Most economical
A572-50 Q355 High strength-to-weight
A992 - Building frames
A913 Q460 High-rise columns

3. European Standards (EN)

Grade Equivalent Notable Feature
S235 Q235 General purpose
S355 Q355 Weather-resistant
S460 Q460 Heavy load-bearing

Key Selection Factors

1. Strength Requirements

  • Low-rise buildings: Q235/S235JR

  • Seismic zones: Q355D/S355J2 (impact tested at -20°C)

  • Mega projects: Q460/S460ML

2. Weldability Considerations

  • Best weldability: Grades with CEV < 0.40% (Q235, S235)

  • Preheat required: Grades with CEV > 0.45% (Q460, S460)

3. Corrosion Resistance

  • Standard: Q355B (indoor use)

  • Outdoor: Q355NH (weathering steel)

  • Marine: S355J2WP (+zinc coating)

Our Material Certification

✔ Mill test certificates (MTC) for every batch
✔ Third-party verification available (SGS/BV)
✔ Full chemical composition reports
✔ Mechanical property testing reports

Case Study:
Philippines Airport Project

  • Used: S355J2 steel beams

  • Quantity: 1,200 tons

  • Compliance: EN 10025-2 certified

  • Delivery: On-time with full documentation


PRODUCT SPECIFICATIONS
No
Components
Specification
Embedded Parts
1
Anchor Bolt
M24
2
High Strength Bolt
M20,10.9S
3
Common Bolt
M16
4
Galvanized Bolt
M12
5
Shear Nail
M16
6
Tir rod
∅32*2.5
Main Steel Structure Parts
1
Steel Column (Q355B)
H550*300*10*16
2
Wind Column (Q355B)
H400*220*6*10
3
Roof Frame Beam (Q355B)
H900~500*220*10*12 H500~650*220*8*12
4
Crane Beam (Q355B)
H650*320/240*10*16/14
5
Tie Bar(Q235B)
∅168*4.0
6
Horizontal Brace (Q235B)
∅168*4.0
7
Column Brace (Q235B)
∅25
8
Angle Brace (Q235B)
L63*5.0
9
Roof Purlin (Galvanized)
Z280*80*20*2.5
10
Wall Purlin (Galvanized)
C250*75*20*2.5
11
Connecting Plate
6mm-30mm
Other Steel Structure Parts
1
Roof Panel
50mm Rock wool Sandwich panel
2
Wall Panel
50mm Rock wool Sandwich panel
3
Gutter
2mm Galvanized Steel Plate
4
Down Pipe
PVC160 (Including parts)
5
Trimming
Color steel 0.5mm Gavanized steel panel


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