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
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 SteelChemical 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. demandCustom design
Field inspection design and design plan.
2. designProcessing & transportation
Initial customized processing and transportation.
3. ProcessingOn-site installation
On-site guidance for construction and installation.
4. installation
factory directly sale fidschi price of mild steel plates
Qatar Steel Checkered Plate Mild SuppliersQatar Steel Industries Factory, counts itself as one of the leading checkered plate suppliers and prides itself in providing a large variety for it. Checkered plate comes under a variety of options such as hot rolled steel, stainless steel, and aluminum. Also known as tread plate or diamond plate; it is identified by a raised checkered pattern. China Container Steel Plate, Container Steel Plate ...China Container Steel Plate manufacturers - Select 2021 h.
39 minutes agoss400 steel for welded structure dealer
Hot Rolled SS400 Galvanized Structural Steel H BeamsHigh quality Hot Rolled SS400 Galvanized Structural Steel H Beams from China, China's leading SS400 Structural Steel H Beams product, with strict quality control T2 35mm Steel H Beams factories, producing high quality 12m Structural Steel H Beams products. SS400|SS400 STEEL PLATE__Steel SupplierSS400 is the Japanese steel material of a marking, the equivalent of the domestic Q235 steel.Foreign standards of structural steel often classified acco.
39 minutes agoa514grade q somalia machining
A-514Q .21 1.30 .035 .035 .35 1.50 1.50 .60 - .08 - - Physical Properties – Typical Values at 68°F Grade Thickness Tensile Strength Yield Strength B 1 ¼" 130 ksi 100 ksi H 2" 130 ksi 100 ksi F 2 ½" 130 ksi 100 ksi Q ≤ 2 ½" 130 ksi 100 ksi * Fine grained, fully killed alloy steel used in applications where highFile Size: 339KBPage Count: 2 A514-Q Steel Plate Supplier - HSLA a514 Q Plates ...A514-Q is a quenched and tempered alloy steel plate that exhibi.
39 minutes agohigh purity cobalt plate 99.98
Bulk-buy High Purity 99.98% Cobalt Cathode Cobalt Metal ...Coating: Cobalt; Grade: FLN8; Full Plate Size: 950~970X800~830mm; Purity: 99.8%~99.95%; Cathode (Cut): Around 50*50*5 mm; Density: 8.92; MW: 58.93; China Cobalt Sheet High Purity 99.98% with Best Price ...Cobalt, Sheet, Cobalt Sheet manufacturer / supplier in China, offering Cobalt Sheet High Purity 99.98% with Best Price, Copper Wire Scrap with SGS Certificate 99.95% for Selling, Lead Ingot 99.97% with Manufacturer From China and Sellin.
39 minutes agohot selling sts403 sch5s 20s stainless steel pipe per ton
2020 hot selling stainless steel pipe, 2020 hot selling ...Alibaba.com offers 2,240 2020 hot selling stainless steel pipe products. A wide variety of 2020 hot selling stainless steel pipe options are available to you, such as steel … hot selling stainless steel pipe, hot selling stainless ...Alibaba.com offers 7,171 hot selling stainless steel pipe products. A wide variety of hot selling stainless steel pipe options are available to you, such as steel grade, standard, and processing service. S.
39 minutes agoiron sheets plate thick 100mm widely used metal roofing
China Iron Sheets Mild Steel Plate Thick 100mm Widely Used ...China Iron Sheets Mild Steel Plate Thick 100mm Widely Used Metal Roofing , Find Complete Details about China Iron Sheets Mild Steel Plate Thick 100mm Widely Used Metal Roofing,China Iron Sheets,Steel Plate Thick 100mm,Used Metal Roofing from Steel Sheets Supplier or Manufacturer-Wuxi Zhonglian Yongsheng Special Steel Co., Ltd. iron structures used steel plate, iron structures used ...Alibaba.com offers 1,004 iron structures used steel.
39 minutes agojis standard high frequency welding h beam
GUOQIANG Hot Rolled H Beam | FenZhan SteelProduct Description Model 10#-63# High 100-630mm Flange Width 68-180mm Web Thickness 4.5-17mm Length 6-16m Technique Hot Rolled,High frequency welding Material Q235,Q345 Shape I Beam,H Beam Standard GB/JIS/EN Applications Steel … High-frequency electric resistance welding: An overviewWeld Quality.Solid-state, high-frequency welding for ESS in general requires minimal heat input, produces a narrow heat-affected zone (HAZ), and results in improved weld p.
39 minutes agomachining uhmw plastic x ray sheet borated polyethylene
UHMW Machined Parts - UHMW Machining & Fabricating | …Fabricating and Machining Tivar UHMW Download 64.35 KB Emco Industrial Plastics offers custom UHMW machining and fabricating for industrial applications. Emco's staff has extensive experience manufacturing parts using UHMW, and can machine and fabricate a precision part … UHMW Polyethylene Rods & Sheets | Emco Industrial PlasticsSize Length Color.032”-8" Thick: 48x96, 48x120, 48x144, 60x96, 60x120 - Mega Sheets Available in.
39 minutes ago