24/7 Phone Services 0086(371)86&15&18&27
Send to E-mail [email protected]
[email protected] Development Zone, Zhengzhou, China

Q345C Steel Properties and Introduction

Q345C Steel Properties and Introduction

Q345C Steel Properties and Introduction Q345C steel is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa (datasheet tested with 16mm diameter steel bars or steel plates). According to GB/T

Get A Quote

Q345C Steel Properties and Introduction

Q345C steel is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa (datasheet tested with 16mm diameter steel bars or steel plates). According to GB/T 1591 – 2008, Q345 material has 5 quality grades: Q345A, Q345B, Q345C, Q345D and Q345E. “Q” is the first letter of Chinese Pinyin: “qu fu dian”, which means Yield Point, “345” is short for 345 MPa. For datasheet and specification, please see the tables below.

Q345 steel weldability, cold & hot workability and corrosion resistance are good. Widely used in bridges, ships, boilers, pressure vessels, petroleum storage tanks, lifting transport machinery and other high-load welded structural parts.

Table-1, Chemical Composition of Q345C Steel
Chemical Composition Content (≤%) ≥%
Steel Grade Quality Grade C Si Mn P S Nb V Ti Cr Ni Cu N Mo B Als
Q345 Q345A 0.20 0.50 1.70 0.035 0.035 0.07 0.15 0.20 0.30 0.50 0.30 0.012 0.10
Q345B 0.035 0.035
Q345C 0.030 0.030 0.015
Q345D 0.18 0.030 0.025
Q345E 0.025 0.020

Notes: The P and S contents of profiles and bars can be increased by 0.005%, and the upper limit of Grade A steel can be 0.0045%.

Table-2, Q345 Mechanical Properties

Mechanical Properties: Yield Strength (≥ N/mm2)
Steel Grade Quality Grade Ø ≤16 16 < Ø ≤ 40 40 < Ø ≤ 63 63 < Ø ≤ 80 80 < Ø ≤ 100 100 < Ø ≤ 150 150 < Ø ≤ 200 200 < Ø ≤ 250 250 < Ø ≤ 400
Q345 Q345A ≥345 ≥335 ≥325 ≥315 ≥305 ≥285 ≥275 ≥265
Q345B
Q345C
Q345D ≥265
Q345E

Notes: Ø = Thickness or wire diameter in mm;

1 MPa = 1 N/mm2

Mechanical Properties: Tensile Strength (N/mm2)
Grade Quality Level Ø ≤ 40 40 < Ø ≤ 63 63 < Ø ≤ 80 80 < Ø ≤ 100 100 < Ø ≤ 150 150 < Ø ≤ 250 250 < Ø ≤ 400
Q345 Q345A 470 – 630 470 – 630 470 – 630 470 – 630 450 – 600 450 – 600
Q345B
Q345C
Q345D 450 – 600
Q345E
Ø mm, Elongation (≥%)
Grade Quality Level Ø ≤40 40 < Ø ≤ 63 63 < Ø ≤ 100 100 < Ø ≤ 150 150 < Ø ≤ 250 250 < Ø ≤ 400
Q345 Q345A ≥20 ≥19 ≥19 ≥18 ≥17
Q345B
Q345C ≥21 ≥20 ≥20 ≥19 ≥18
Q345D ≥17
Q345E

Q345 Equivalent

Q345 steel: Q345A, Q345B, Q345C, Q345D, Q345E equivalent to US ASTM, European Germany DIN, British BS, France NF, Japan JIS, and ISO Standard (For Reference)

Q345 Equivalent
China USA Germany Japanese France UK ISO
Standard Grade Standard Grade Standard Grade (steel number) Standard Grade Standard Grade (steel number) Standard Grade (steel number) Standard Grade
GB/T 1591 – 2008 (Year) Q345A ASTM A529/A529M;
ASTM A572/A572M;
ASTM A588/A588M;
ASTM A678/A678M;
ASTM A808/A808M
Grade 50;
Grade 50;
Grade B;
Grade D;
A808M
DIN EN 10025-2;

DIN 17100

S355JR (1.0045),
E355 (1.0060);
St52-3
JIS G3135 SPFC590 NF EN 10025-2 S355JR (1.0045),
E355 (1.0060);
BS EN 10025-2 S355JR (1.0045),
E355 (1.0060);
ISO 630-2 S355C, S355D (S355)
GB/T 1591 – 2008 Q345B Ditto Ditto Ditto Ditto JIS G3135 SPFC 590 Ditto Ditto Ditto Ditto ISO 630-2 S355C, S355D (S355)
GB/T1591 – 2008 Q345C Ditto Ditto DIN EN 10025-2;
DIN 17100
S355J0 (1.0553),
E335 (1.0060);
St52-3
JIS G 3135 SPFC590 NF EN 10025-2 S355JO (1.0553),
E335 (1.0060)
BS EN 10025-2 S355JO (1.0553),
E335 (1.0060)
ISO 630-2 S355D (S355)
GB/T 1591 – 2008 Q345D ASTM A656/A656M;

ASTM A529/A529M

Type 7;

Grade 50

DIN EN 10025-2;
DIN EN 10025: 1993;
DIN 17100
S355J0 (1.0553),
E335 (1.0060);
S355J2G3 (1.0570);
St52-3
JIS G 3135 SPFC590 NF EN 10025-2;
NF EN 10025: 1993
S355J0 (1.0553),
E335 (1.0060);
S355J2G3 (1.0570)
BS EN 10025-2;
BS EN 10025: 1993
S355J0 (1.0553),
E335 (1.0060);
S355J2G3 (1.0570)
ISO 630-2 S355D (S355)
GB/T 1591 – 2008 Q345E ASTM A656/A656M;

ASTM A529/A529M

Type 7;

Grade 50

DIN EN 10025-2;
DIN EN 10025: 1993
S355J2 (1.0553),
S355K2 (1.0596),
E335 (1.0060);
S355J2G4 (1.0577),
S355K2G3 (1.0595),
S355K2G4 (1.0596)
JIS G3135 SPFC 590 NF EN 10025-2;
NF EN 10025: 1993
S355J2 (1.0553),
S355K2 (1.0596),
E335 (1.0060);
S355J2G4 (1.0577),
S355K2G3 (1.0595),
S355K2G4 (1.0596)
BS EN 10025-2;
BS EN 10025: 1993
S355J2 (1.0553),
S355K2 (1.0596),
E335 (1.0060);
S355J2G4 (1.0577),
S355K2G3 (1.0595),
S355K2G4 (1.0596)

Notes: Q345 steel has been replaced byQ355 in the latest version of GB standard “GB/T 1591 – 2018”, the previous version is “GB/T 1591 – 2008”.

Client demands
 

Customer's requirement configuration.

1. demand

Custom design
 

Field inspection design and design plan.

2. design

Processing & transportation

Initial customized processing and transportation.

3. Processing

On-site installation
 

On-site guidance for construction and installation.

4. installation
what is pre rusted sma490cw weather steel corten sheet

what is pre rusted sma490cw weather steel corten sheet

sma490cw weather steel exporter China Buy A36 Steel Plate ...SMA490CW steel plate is a kind of weathering steel plate which is widely used in air preheater, economizer, railway carriage, containers production, bridge building , construction and so on.More information about SMA490CW steel plate details, please see the following Key words SMA490CW steel, SMA490CW steel plate, SMA490CW weathering steel What is Corten Weathering Steel? - Corten Flat SheetsWeathering steel, best-known under the trade.

Reply 39 minutes ago
prepainted color coated steel coil sheet in sheet

prepainted color coated steel coil sheet in sheet

Prepainted Steel Sheet - Painted Steel Coil | Alliance SteelApplications for Pre-paint Steel Products. Prepainted steel is used in many applications including: Metal Roofing; Garage Doors; Lighting Fixtures; Appliances; Heating and Air-Conditioning; Prepainted Steel Sheet. Alliance Steel Multi-Blanking Capabilities: Material Thickness: .015"-.135" Max Coil: 45,000 lbs. ID: 20”-24” Entry Width: 15.00”-74.00” Explore further3105 Painted Aluminum Sheet | Pre-Painted Aluminum Sheet.

Reply 39 minutes ago
wear resistant plate hardoxs 500 price

wear resistant plate hardoxs 500 price

HARDOX 500 Wear Resistant Steel - Shipbuilding Steel Plate ...Buy high quality and hot sale hardox wear resistant steel in bulk with GNEE which is one of the leading hardox wear resistant steel manufacturers and suppliers in China. Our factory also offers free sample for quality checking. Enjoy the competitive price and service now. Hardox 400 500 Steel Plate - Weather Resistant Steel ...Hardox 400 500 steel offered by China manufacturer Gnee. Buy 400 500 wear resistant steel plate directly with.

Reply 39 minutes ago
a283 grade c angle iron supplier

a283 grade c angle iron supplier

ASTM A283 Grade C Steel Plates, A283 Grade C Steel Plates ...Gang steel is a leading manufacturer of ASTM A283 Grade C Steel Plates, ASME SA283 Gr.C Low Tensile Strength Plate, Grade C ASTM A283 Hot Rolled Carbon Steel Plate suppliers in … A283 Gr.C - BEBON steelA283 Grade C steel plate mechanical property BEBON is specialized in supplying ASTM steel plate in A283 Gr.C. more information about ASTM A283 Gr.C steel plates, please contact us! Bebon International is a professional A283 Gr.C steel .

Reply 39 minutes ago
s275 steel compressive strength weight

s275 steel compressive strength weight

Table of material properties for structural steel S235 ...Material Design Properties for Structural Steel S235, S275, S355, S420, S450, S460 according to EN1993-1-1 §3.2.6; Material Property Value; Density ρ ≈ 7850 kg/m 3: Unit weight γ ≈ 78.5 kN/m 3: Modulus of elasticity E (Young's modulus) 210000 MPa: Shear modulus G: G = E / [2 ⋅ (1 + ν) ] ≈ 81000 MPa: Yield strength f y: see table below: Ultimate strength … Explore furtherDatasheet for Steel Grades Carbon Steel S355www.ste.

Reply 39 minutes ago
dx51d hig quality galvalume steel coils for ventilation duct price

dx51d hig quality galvalume steel coils for ventilation duct price

High Quality DX51D Galvanized Steel Coil Regular Spangle ...Buy High Quality DX51D Galvanized Steel Coil Regular Spangle Competitive Price, Find Details include Size,Weight,Model and Width about High Quality DX51D Galvanized Steel Coil Regular Spangle Competitive Price. Make an Inquiry for High Quality DX51D Galvanized Steel Coil Regular Spangle Competitive Price at OKorder.com. China High Quality Hot Dipped Dx51d Zicn Coating 150g ...High Quality Hot Dipped Dx51d Zicn Coating 150g Prime Prepain.

Reply 39 minutes ago
oem precision alloy metal mould

oem precision alloy metal mould

High Precision OEM Design Metal Aluminum Die Casting …High Precision OEM Design Metal Aluminum Die Casting Mould Maker. As one of the most professional plastic mould for medical instrument, automotive,consumer product industries manufacturers in China, we're featured by quality products and good service. Oem Metal Stamping Manufacturer And Suppliers | LigaoOur main products include custom all kinds of progressive die, stamping products and metal stamping parts.We provide one-stop service for t.

Reply 39 minutes ago
carbon plate 3mm thick hot rolled steel plate ar500

carbon plate 3mm thick hot rolled steel plate ar500

AR500 Steel - AR500 Steel Plate | Steel WarehouseMuch like AR450 and AR400, AR500 steel is a specific type of abrasion resistant steel. This has a surface hardness of 477-534 BHN. It is a high-carbon steel alloy that provides greater impact and sliding abrasion resistance by comparison. However, this increase in strength and abrasion resistance will make the steel less malleable. Explore furtherprices on 4'x8' sheet ar500 | Sniper's Hide Forumwww.snipershide.comAR500 / 500F Alloy Steel Armor Pla.

Reply 39 minutes ago
Client Image 1
Client Image 2
Client Image 3
Client Image 4
Client Image 5
Client Image 6
Client Image 7
Client Image 8
Client Image 9
Client Image 10
Client Image 11
Client Image 12