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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.

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Product Description

Name: 20# / C22 Carbon Steel Tube
SKU: 0

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.

Product Application

Packaging and shipping

Factory Display

FAQ

Q1: What steel products do you mainly supply?

A: We provide a full range of steel products, including rebar, round steel, flat steel, angle steel, channel steel, H-beam, medium and thick steel plate, flattened plate, patterned plate, hot rolled coil, cold rolled coil, seamless steel pipe, welded pipe, galvanized steel, color coated steel, stainless steel, alloy steel and more. Our products comply with international standards such as GB, ASTM, EN and JIS.

Q2: Do you support customized sizes, cutting and processing?

A: Yes. Standard fixed lengths are 6 meters and 12 meters. We can provide flattening, slitting, cutting, bending, polishing and non-standard customized processing services to meet various global engineering procurement requirements.

Q3: What is the minimum order quantity?

A: 1 ton for regular in-stock products; 5 tons for customized rolled products. Small trial orders are acceptable.

Q4: What surface treatments are available for steel products?

A: Hot rolled black surface, cold rolled bright surface, pickling, sandblasting, galvanizing, painting, anti-rust oil coating, mirror wire drawing and customized anti-corrosion treatment.