St52.3/1.0570/Q355b Hot Rolled Steel Round Bar

• After-sales Service: Change Against Defect or Technical
• Warranty: 1 Year
• Type: Carbon Steel Bar
• Standard: AISI
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Coated
• Alloy: Non-alloy
• Special Use: Mold Steel
• Length: 3000-6000mm/Sawing to Size
• Delivery Condition: Hot Rolled Normolized
• Heat Treatment: Qt on Request
• Quality Control: Dimension/Visual
• Mill′s Test Certificate: En10204 3.1
• Transport Package: Bundles
• Specification: from 20mm to 500mm dia.
• Trademark: DY
• Origin: China
• Production Capacity: 5000 Ton/Year

Product Description

ST52.3/1.0570/Q355B Hot Rolled Steel Round Bar

St52 steel (St52-3) is an unalloyed structural steel grade complies with DIN 17100: 1980, the designation has been discarded since 2004. According to German standard DIN 17100, St52 steel is divided into St52-3U (1.0553) and St52-3N (1.0570 material). St 52 material new designation is S355, St52-3 new name is S355J2 (1.0577), St52-3 U new designation is S355J0 (1.0553), and St52-3 N new name in EN 10025: 1993 is S355J2G3, DIN 17100 has been replaced by EN 10025-2: 2004.
Physical Properties
Material St 52-3 Density: 7.85 g/cm3
Melting point: 1420-1460 °C (2590-2660 °F)
Structural Steel St52-3 Hardness: ≤180 HB, annealed
Charpy impact test (Charpy V-notch, longitudinal) value
St52-3U: ≥ 27 J, (thickness: 10≤t≤ 63mm), ≥ 23 J, (thickness: 63<t≤ 100mm), temperature 0 °C
St52-3N: ≥ 27 J, (thickness: 10≤t≤ 63mm), ≥ 23 J, (thickness: 63<t≤ 100mm), temperature -20 °C
by agreement, (thickness: > 100mm)
Available stock size from 20 to 500mm diameter, 3000-6000mm length, provide sawing-to-size.
Delivery condition: hot rolled black surface
Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.
Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.