Name: Carbon Steel Round Billet
SKU: 0

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Carbon Steel Round Billet

Carbon steel round billets are cylindrical semi-finished steel products, usually manufactured through continuous casting or hot rolling. They are primarily used as feedstock for seamless pipes, round bars, and forging operations. Round billets provide excellent machinability, good mechanical properties, and can be customized for specific industrial applications.

PRODUCTS INTRODUCTION

Plain Carbon Steel Round Billet

Specifications:

Grade: A36, SS400, Q235B, Q275, Q345B, S235JR, S275JR, S355JR, SM400, SM490, ASTM A36, ASTM A529, EN 10025 S235, EN 10025 S275, EN 10025 S355, JIS G3101 SS400, JIS G3192, etc.
Diameter: 100 mm – 300 mm
Length: 6 m – 12 m
Manufacturing Process: Continuous casting → Cutting → Cooling → Inspection
Surface Condition: As-cast or peeled surface
Applications: Rolling of round bars, wire rods, and rebar

Mechanical Properties:

Property	Value
Tensile Strength	370–500 MPa
Yield Strength	≥ 235 MPa
Elongation	≥ 20%

Chemical Composition (%):

C	Mn	Si	P	S
≤0.22	0.30–0.70	≤0.35	≤0.045	≤0.050

High Strength Alloy Round Billet

Specifications:

Grade: Q345B, Q355B, Q355D, Q390B, Q420B, Q460C, A572 Gr.50, A572 Gr.60, A572 Gr.65, A913 Gr.50, A913 Gr.65, A992, ASTM A709 Gr.50, ASTM A709 Gr.50W, S420ML, S460ML, etc.
Diameter: 120 mm – 300 mm
Applications: Seamless pipe rolling, heavy-duty shafts, machinery parts

Mechanical Properties:

Tensile Strength	Yield Strength	Elongation
450–620 MPa	≥ 345 MPa	≥ 18%

Chemical Composition (%):

C	Mn	Si	P	S
≤0.20	1.00–1.60	≤0.50	≤0.035	≤0.035

Medium Carbon Steel Round Billet

Specifications:

Grade: 4140, 4340, 8620, 1215, 42CrMo4, 34CrNiMo6, 16MnCr5, S45C, SCM440, SNCM439, ASTM 4140, ASTM 4340, DIN 42CrMo4, DIN 34CrNiMo6, etc.
Diameter: 150 mm – 280 mm
Applications: Forging dies, shafts, gears, and automotive components

Chemical Composition (% SAE 1045):

C	Mn	Si	P	S
0.43–0.50	0.60–0.90	≤0.40	≤0.040	≤0.050

Product Real Shot

FAQ

Q1: What product information must I provide before making a purchase?
A: Please provide the grade, width, thickness, surface treatment requirements, and the quantities you need.

Q2: What about product pricing information?
A: Prices may vary due to fluctuations in raw material costs.

Q3: Is it possible to send samples?
A: Yes, we offer free samples with express shipping worldwide.

Q4: Do you offer a service for customized products?
A: Yes, we can supply according to your specific requirements.

Q5: Can I visit you in person?
A: Customers from all over the world are welcome to meet with us.

Q6: Can you assist me in importing steel products for the first time?
A: Yes, we can provide support through our experienced shipping agents.

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