Commodity Name
|
Carbon Steel Round / Square / Flat Bar Rod |
Standard | API 5L, GrB/ASTM A106, GrB/ASTM A53 |
ASTM A106, ASTM A53, API 5L B, ASTM A179, ASTM A210, ANSI B36.10 | |
GB 5310.GB6479 GB9948.GB/T17396 | |
GB 3087. GBT 8162 ,GB/T8163 | |
Size | Diameter from 10 – 1200mm, length from 1m-12m or according to customer’s special request |
Packing
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In bundles tied with steel stripes |
Payment Term
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T/T, L/C at sight, Western Union, etc |
Material
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A53(A.B)A106 (A. B).0345,16Mn, 10#, 20#, 45# S235JR. S355JR, ASTMA252, Gr.2, Gr.3, ST37, ST42, ST52, GrB, X42 X46 X52 X5 X6 X65 X70. etc
|
Usage
|
for petroleum, chemical, building materials, and power industries. |
for auto manufacturing, shipbuilding, aerospace industry. | |
for auto-power and wind-engine, metallurgical machinery, precision tools. |
The properties of carbon steels
• Low carbon steel is also called mild steel and comes in the widest choice of shapes, everything from flat sheets to structural beams.
• Medium carbon steel is stronger than low carbon and trickier to form, weld and cut. It’s often hardened and tempered with heat treatment.
• High carbon steel is also called carbon tool steel, and is very difficult to cut, bend and weld. When heat treated it becomes very hard and extremely brittle.
Uses for carbon steels
Low carbon steel is usually made into flat rolled sheets and strips, used for shipbuilding, wire, vehicle bodies and domestic appliances. It’s widely used for fabrication and panelling because it can’t be altered by heat treatment. Carbon steel with the lowest possible amount of carbon is called ‘wrought iron’, used for fencing, gates and railings, hard but not brittle.
Medium carbon steel is a lot easier to machine and adding small amounts of silicon and manganese improves the quality. Also called mild steel, it’s commonly used structurally in buildings and bridges, axles, gears, shafts, rails, pipelines and couplings, cars, fridges and washing machines.
High carbon steel has a much better tensile strength, used to make cutting tools, blades, punches, dies, springs and high-strength wire.
Ultra high carbon steel is brittle and very hard, and can’t be cold-worked. It’s used to make extremely hard components like blades, cutting tools and large machine parts, hot water radiators, industrial castings and metal lamp posts. It’s also called ‘cast iron’, and it’s the material used to make old fashioned cooking pots.