Guangdong LiYou Steel Structure Engineering Co., Ltd.        +8619147784007     liyousteelstructure@outlook.com
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H Steel I Steel for Q235 Q355

Features of steel structure are:
1. The steel structure is light in weight, high in strength, and large span.
2. The construction period of steel structures is short, which reduces investment costs accordingly.
3. Steel structure buildings have poor fire resistance and corrosion resistance. 
4. The steel structure building is easy to move and recycle without pollution.
 
WhatsApp:+86-18923185601
Email:Jenny11liyou@gmail.com
Availability:
Quantity:
Product Overview

H Steel vs. I Steel (Q235 vs. Q355) – Structural Comparison Guide

1. Key Differences Between H Steel and I Steel

Feature H Steel (Wide Flange) I Steel (Standard Beam)
Flange Width Wider, parallel flanges Narrower, tapered flanges
Web Thickness Thicker web Thinner web
Load Capacity Better for heavy axial loads Better for bending moments
Common Uses Columns, heavy frames Beams, lintels, lighter framing

2. Q235 vs. Q355 Steel Grade Comparison

Property Q235 Steel Q355 Steel
Yield Strength 235 MPa 355 MPa
Tensile Strength 370-500 MPa 470-630 MPa
Carbon Content 0.14-0.22% 0.12-0.20%
Applications Light structures, non-critical frames Heavy construction, high-rise buildings
Cost Difference 15-20% cheaper Higher strength-to-cost ratio

3. Recommended Applications

  • Q235 H Steel:
    ✔ Light industrial buildings
    ✔ Temporary structures
    ✔ Secondary framing

  • Q355 H Steel:
    ✔ High-rise building columns
    ✔ Heavy crane runways
    ✔ Seismic-resistant structures

  • Q235 I Steel:
    ✔ Residential beam supports
    ✔ Small bridge components
    ✔ Secondary roof framing

  • Q355 I Steel:
    ✔ Long-span floor beams
    ✔ Heavy industrial platforms
    ✔ Earthquake zones

4. Technical Specifications

Parameter H Steel (Q355) I Steel (Q355)
Standard Sizes HW 100x100 to HW 400x400 I10 to I60
Max Span Capacity 12m (as column) 18m (as beam)
Weight Range 17-300 kg/m 11-150 kg/m

5. Selection Guidelines

  • Choose H Steel when:
    ✔ Need superior axial load capacity
    ✔ Designing compression members
    ✔ Requiring better fire resistance

  • Choose I Steel when:
    ✔ Need efficient bending resistance
    ✔ Designing long-span horizontal members
    ✔ Weight reduction is critical

6. Cost Comparison (Market Price 2024)

Product Q235 (USD/ton) Q355 (USD/ton)
H Steel $650-750 $750-900
I Steel $600-700 $700-850

Note: Prices vary based on quantity and coating requirements.

7. Liyou Steel Supply Advantages

  • In-stock availability of standard sizes

  • Custom cutting to specified lengths

  • Hot-dip galvanizing option (G90 coating)

  • Mill test certificates with every order

Need help selecting the right steel?

FAQ

Q: Which is stronger - Q355 H steel or I steel?
A: Q355 H steel has higher axial load capacity, while Q355 I steel performs better in bending applications.

Q: Can Q235 steel be used for seismic zones?
A: Not recommended. Q355 is preferred for earthquake-resistant structures.

Q: Do you provide cut-to-size services?
A: Yes - We offer plasma/oxy-fuel cutting with ±2mm tolerance.



Place of Origin:

Product Name:

Foshan, China (Mainland)

Steel Frame House

Material:

Q345 Q235 H Section Steel, C/Z Section Steel, Square Tube etc.

Standard:

Type:

GB

Steel Structure Frame

Size:

Color:

Up to Customer's Requirement

Graywhite, Blue, Red, etc..

Roof & Wall Material:

Insulation:

Sandwich Panel

EPS, Rockwool, Glass wool, PU etc..

Door & Windows:

Technology:

Steel Door, Aluminum Sliding Window, PVC Window

Welded steel, Hot Rolled Steel

Drawing Design:

Keywords:

AutoCAD, Tekla Structure, Vertex BD, SketchUp etc.

Big Metal Building Homes



Components

Specification

Anchor Bolt

M30

High Strength Bolt

M20,10.9S

Common Bolt

M16

Galvanized Bolt

M12

Shear Nail

M16

Steel Column(Q345B)

HN600X200X10X15

Steel Column(Q345B)

HN300X150X6.5X9

Roof Column(Q345B)

HN350X175X6X9

Floor Main Beam(Q345B)

HN500X200X9X14

Floor Second Beam(Q345B)

HN350X175X6X9

Stair

∅16-bar+2.5mm Chequered Plate

Tie Rod

∅89*3.0

Horizontal Support

∅16

Roof Purlin(Galvanized)

C180*60*20*2.0

Wall Purlin(Galvanized)

C180*60*20*2.0

Connecting Plate

6mm~20mm Steel Sheet

Paint

2 Times Spray Paint

Roof Tile- EPS Sandwich panel

50mm Color Steel Thickness: 0.426

FRP Skylight Panel

Fiber Glass Reinforced Polyester

Outside Wall Panel -- EPS Sandwich panel

50mm Color Steel Thickness: 0.426

Floor Decking

1.5mm Galvanized Steel Sheet

Stair Handrail

口80*40+口40+口30+口20

Gutter

2.0mm Galvanized Gutter

Down Pipe

∅110PVC

Trimming

1.0mm Galvanized Steel Sheet


Steel Structure Building Applications

Livestock Shed, Garage, Plant, Warehouse, Workshop, Office Building, Hotel Building, Commercial Building , Residential House, Airplane Hangar, Outdoor Stadium Shed, Labour Camp, School, Exhibition Hall, Logistics Park, Refrigeration House, Resort, Dormitory Building, Shopping Mall.


Steel Frame House

Steel Frame House

Why Choose Us

01 Customized Design

Offer professional building planning & drawing, and suitable steel components according to your requirements.


02 Quality Assurance

● Strict quality control

● Safe packing

● Quality inspection before shipment


03 After-sales service

Installation instruction on site

Installation technical team backup

Timely communication by Email & Phone


Certification

第一套详情模板_07 (4)


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