carbon steel Square pipe Manufacturer

Mild Carbon Steel Square Tube

Square Carbon Seamless Steel Pipe

Black Carbon Steel Square Pipe
Routinely Stocked In Standard Lengths
Grades | Height | Wall | Length | Custom Cut |
---|---|---|---|---|
A36 | 0.5"-10" | 0.065"-0.5" | 12"-288" | Yes |
A500 | 0.5"-10" | 0.065"-0.5" | 12"-288" | Yes |
A513 | 0.5"-10" | 0.065"-0.5" | 12"-288" | Yes |
A1085 | 0.5"-10" | 0.065"-0.5" | 12"-288" | Yes |
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Product Description
Types of Carbon Steel Square Pipe
Metal in China®(XINTUOYUAN) provides structural steel square pipes and mechanical steel square pipes in various sizes. We stock a range of A500 Class B minor trim sizes, these are commonly used for handrails in the transport, ladder and lift industries, as well as in the construction industry.

Structural Steel Square Tubing

Mechanical Steel Square Tubing
carbon steel Square pipe Applications
Carbon steel mechanical tubing is a critical component in a variety of dynamic applications, from cars and trucks to construction equipment and heavy machinery. The larger the machine, the more mechanical square tubing you’re likely to find. With our extensive, comprehensive carbon square tube inventory, we are sure to provide the right choice for your mechanical application – whatever it may be. All A513 Class 1 mechanical steel square tubing is made from 1008-1015 steel.
- A513-1 BLACKKOTE
- A513-1 CREW
- A513-1 HREW
- A513-1 HREW/CREW

handrail

railing

Car
Structural steel square pipes are used to provide support for various buildings and rigid structures. Structural-grade square steel pipes can be used in countless applications, from small, simple road signs or handrails to large, multi-section supports for bridges or stadiums.
- A500B FR
- A500B HSS
- A500B REDKOTE
- A500C HSS
- A1085 HSS
Additional steel processing services
cutting Service
For parts that require extremely high wear resistance, we use abrasive waterjet cutting to maintain hardness throughout the part without creating a heat-affected zone. For thicker plates up to 200mm, we use precisely controlled CNC oxy-fuel cutting. For products requiring high cut quality and dimensional tolerances, we use high-definition underwater plasma cutting to maximize plate performance in abrasive applications.

Abrasive Waterjet Cutting
3D cutting head up to 3 x 6 meters

Flame cutting
18 x 4m water platform

plasma cutting
18 x 4m water platform
Machining, Drilling and Welding Service
The tolerance of wire cutting machine (EDM) is as low as +/- 0.02mm, which can easily process precision parts. Using high-rigidity machine tools and correct tooling, precision milling of wear-resistant plates to make parts. Flexible large-scale milling machines are capable of performing any type of machining Processing z.SSAB welding experts work closely with our skilled operators to develop a specific welding process for your part or assembly.

Machining

CNC milling

large milling

Welding - MIG/MAG/TIG
Sawing, galvanizing, bending and blasting services
For pipe series products, in addition to our huge pipe inventory, Metal in China® also provide many value-added secondary services to better meet your needs. With our processing service, we are sure to provide round carbon steel pipes that meet your unique specifications.

Saw cutting service

Galvanizing service

Bending service

Sandblasting service
frequently asked questions
Square steel pipes are available in A500 Grade B or A513 Grade. Square steel pipe has an uncoated, semi-smooth gray finish. Mechanical/structural steel square tubing has a tolerance of +/- 10% on “wall thickness”.
Common applications include trailers, car frames, racks and structural supports. ASTM A500 is a standard specification for round and profile cold-formed welded seamless carbon steel structural tubing.
ASTM A513 is a standard specification for electric resistance welded carbon and alloy steel mechanical tubing.