20# / C22 Carbon Steel Tube
Carbon steel 20# is ideal for projects requiring reliable performance at a competitive price, particularly in non-corrosive environments. For harsh conditions, surface treatments (e.g., galvanizing) or alloy steels are recommended.
- Product Description
- Spot Warehouse
- Product Inspection
- Product Measurement
- Product Packaging
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- Commodity name: 20# / C22 Carbon Steel Tube
Carbon steel 20# is ideal for projects requiring reliable performance at a competitive price, particularly in non-corrosive environments. For harsh conditions, surface treatments (e.g., galvanizing) or alloy steels are recommended.
Carbon Steel Tube 20#
Carbon steel 20# (Grade 20 carbon steel) is a widely used low-carbon steel under the Chinese GB/T 699 standard. It offers a balanced combination of strength, ductility, and machinability, making it suitable for a variety of industrial applications.
Product Parameters
Product Name
Carbon Steel Tube 20#
Standard
ASTM: Similar to A283 Grade C or AISI 1020
DIN: Comparable to St37-2
Outer Diameter
Seamless: 1/4"-36"
Welding: 21.3mm-3620mm
Round Tube: 1/2"-10"
Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness
Seamless: 1.25mm-50mm
Welding: 1.65mm-65mm
Length
3-12 meters, Support customization
Surface Process
Bright, Polished, Black
Other Services
Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.
Chemical Composition
C
Si
Mn
P
S
0.17-0.23
0.17-0.37
0.35-0.65
≤ 0.035
≤ 0.035
International Trademark Comparison Table
AISI/SAE ISO DIN BS
NF
JIS
S
1020 C22 CK22
IC22
C22/C20
S20C/S22C
≤ 0.035
Mechanical Properties
Tensile Strength ≥410 MPa Yield Strength ≥245 MPa Elongation ≥25% Hardness ≤156 HB (annealed condition) Scope of Application
● Structural components (brackets, frames). ● Piping systems and hydraulic cylinders.
● Machinery parts (shafts, gears, bolts). ● Automotive and agricultural equipment.
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Mild Steel Tube - Stock Warehouse
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Mild Steel Tube - Product Inspection
Tensile Strength Testing Tensile Strength Testing Physical Performance Testing Chemical Composition Testing 
Inspection Hardness Testing Spectral Detection Mechanical Properties -
Mild Steel Tube - Product Measurement
Width Measurement Length Measurement Thickness Measurement Thickness Measurement -
Mild Steel Tube - Product Packaging
Jiuzhou Metal
Your reliable steel supplier
Jiuzhou Metal has 10+ warehouses with ready stock. The annual supply capacity is approximately 10 million tons. It has 10 years of experience in large-scale project supply. The customer reorder rate reaches 86%. We ensure quality and quantity, provide material certificates, and will refund if the products are not qualified, so please be assured the purchase.
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