Carbon steel is the most widely used category of steel materials in global construction, manufacturing, and industrial applications. As a leading carbon steel supplier from China, we offer a comprehensive range of carbon steel products including plates, coils, sheets, pipes, bars, rebar, and forging steel, conforming to ASTM, EN, GB, JIS, and other international standards. Our carbon steel products are available in various grades such as A36, S355JR, Q235B, Q345B, A516, and many more, suitable for structural fabrication, pressure vessels, shipbuilding, pipeline construction, and general engineering applications. All products are supplied with original mill test certificates and professional export packing.
Spring Steel Wire Rod is hot-rolled coiled rod in medium-to-high carbon alloy spring steel — the primary raw material for drawing spring wire and coil spring manufacturing. Diameter 5.5–40mm. Grades 60Si2Mn, 55CrSi, SUP7, SAE 9260, 51CrV4. Standard and vacuum degassed (VD) quality. Stelmor air-cooled coil. Mill test certificate provided.
View Details →
AISI 347H (UNS S34709) niobium-stabilized austenitic stainless steel plate for high-temperature service to 800°C. Enhanced creep strength with 0.04-0.10% carbon and Nb stabilization. Ideal for superheater tubes, refinery heaters, and pressure vessels. Thickness 3-100mm, ASTM A240 certified.
View Details →
34CrNiMo6 (1.6582) is a high-strength Ni-Cr-Mo alloy forging steel with excellent toughness and deep hardenability. After Q+T, tensile strength reaches 900-1400 MPa. Available as forged round bars (80-1500mm), blocks up to 30T, and rings up to 5m OD for highly stressed shafts, gears, and energy sector components.
View Details →
AISI 4340 (UNS G43400) is a high-strength Ni-Cr-Mo alloy forging steel with exceptional toughness and deep hardenability. After Q+T, tensile strength reaches 900-1400 MPa with excellent fatigue resistance. Available as forged round bars (80-1500mm), blocks up to 30 tons, and rings up to 5m OD for aerospace, oil & gas, and heavy machinery components.
View Details →
AISI 4140 (UNS G41400) is a medium-carbon Cr-Mo alloy forging steel with excellent hardenability, high strength after Q+T (tensile 900-1100 MPa), and reliable toughness. Available as forged round bars (80-1500mm), blocks up to 30 tons, and rings up to 5m diameter for shafts, gears, and heavy machinery components.
View Details →
SWRH 62B is a high-carbon wire rod per JIS G 3506 with 0.59-0.66% carbon. Diameter 5.5mm to 16mm, spheroidized annealed (HBW 190-260). Primary feedstock for high-strength spring wire, ACSR core wire, PC wire, and high-tensile wire ropes.
View Details →
42CrMo4 (1.7225) is a medium-carbon low-alloy forging steel with excellent hardenability, high strength after Q+T (tensile 900-1100 MPa), and reliable toughness. Available as forged round bars (80-1500mm), blocks up to 30 tons, and rings up to 5m diameter for shafts, gears, and heavy machinery components.
View Details →
SWRH 42B is a high-carbon spring wire rod per JIS G 3506 with 0.39-0.46% carbon. Diameter 5.5mm to 16mm, spheroidized annealed (HBW 170-230). Primary feedstock for valve springs, suspension springs, and high-performance mechanical springs.
View Details →
SAE 1018 is a medium-carbon wire rod with 0.14-0.20% carbon for higher-strength applications. Diameter 5.5mm to 16mm in coil form (1.5-3 tons). Primary feedstock for high-strength fasteners, spring wire, automotive components, and specialty wire products.
View Details →
SAE 1008 is a widely used low-carbon wire rod with maximum 0.10% carbon for good cold drawability. Diameter 5.5mm to 14mm in coil form (1.5-3 tons). Primary feedstock for general nails, mesh, wire products, fasteners, and galvanized wire.
View Details →
SAE 1006 is the industry standard low-carbon wire rod with maximum 0.08% carbon for excellent cold drawability. Diameter 5.5mm to 14mm in coil form (1.5-3 tons). Primary feedstock for nails, mesh, fasteners, galvanized wire, and electrical conductors.
View Details →
BS 4449 Grade 500B is the standard high-yield reinforcing steel rebar in the UK with characteristic yield strength of 500 MPa (72,500 psi). Metric sizes 8mm through 40mm in lengths 6m/12m. Class B ductility. CARES-approved quality. Mill test certificate provided.
View Details →
Overview of ASTM A615 Grade 40 Steel Rebar ASTM A615 Grade 40 is a standard low-strength reinforcing steel rebar specified under ASTM A615/A615M standard, primarily used for light-duty concrete reinforcement applications where lower structural demands exist. Grade 40 represents reinforcement…
Overview of ASTM A615 Grade 60 Steel Rebar ASTM A615 Grade 60 is the most widely used reinforcing steel rebar in North America and a major global export grade for international construction markets. Specified under ASTM A615/A615M standard, Grade 60…
Overview of HRB500 Steel Rebar HRB500 is China’s latest generation high-strength hot-rolled ribbed steel reinforcement bar with a characteristic yield strength of 500 MPa. Specified under GB/T 1499.2-2018 standard, HRB500 represents the fourth-generation reinforcement steel that is gradually replacing HRB400…
Overview of HRB400 Steel Rebar HRB400 is the most widely used hot-rolled ribbed steel reinforcement bar in China and a major export grade to global construction markets. Specified under GB/T 1499.2 standard, HRB400 represents the third-generation high-strength reinforcement steel with…
Overview of Q345B Carbon Steel Flat Bar Q345B is a widely used Chinese standard low-alloy high-strength structural steel flat bar specified under GB/T 1591 standard. With a minimum yield strength of 345 MPa and tensile strength of 470-630 MPa, Q345B…
Overview of Q235B Carbon Steel Flat Bar Q235B is one of the most commonly used carbon structural steel flat bar grades in China and the Asia-Pacific region, specified under the Chinese national standard GB/T 700 (Carbon Structural Steels). The designation…
Overview of GB 40Cr Alloy Steel Round Bar GB 40Cr is a widely used chromium alloy structural steel round bar specified under the Chinese national standard GB/T 3077 (Alloy Structure Steels). With carbon content of 0.37-0.44% and chromium content of…
Overview of GB 42CrMo Alloy Steel Round Bar GB 42CrMo is one of the most widely used and trusted alloy steel round bar grades in China and global markets, specified under the Chinese national standard GB/T 3077 (Alloy Structure Steels).…
Overview of AISI 4340 Alloy Steel Round Bar AISI 4340 is a premium nickel-chromium-molybdenum (Ni-Cr-Mo) alloy steel round bar recognized as one of the highest-strength, most versatile through-hardening alloy steels available in global engineering. With carbon content of 0.38-0.43%, nickel…
Overview of AISI 1045 Carbon Steel Round Bar AISI 1045 is a widely used medium-carbon steel round bar specified under AISI/SAE 1045 standard with carbon content typically 0.43-0.50%. This grade provides significantly higher strength and hardness than low-carbon grades like…
Overview of AISI 1020 Carbon Steel Round Bar AISI 1020 is one of the most commonly used low-carbon steel round bars in global manufacturing and engineering applications. Specified under AISI/SAE 1020 standard with carbon content typically 0.17-0.23%, this grade offers…
Overview of SSAW Steel Pipe SSAW (Spiral Submerged Arc Welded) steel pipe, also known as spiral welded pipe or HSAW (Helical Submerged Arc Welded) pipe, is manufactured by continuously forming hot-rolled steel coils into a helical (spiral) shape and welding…
Tell us your exact requirements — grade, standard, dimensions and quantity. Our team will respond within 24 hours with competitive pricing.
All fields marked with * are required