Steel Bar & Rod
Carbon and stainless steel bar and rod, shipped from Wuxi, China. Round, square, hex and flat sections, cut to length or machined to your drawing. Choose a material and section below.
CNC turning up to 500 mm diameter, tolerance ± 0.02 mm
4,500 tons of stainless bar in stock (out of 80,000 tons in total) in Wuxi
Mill test certificate with every product, with heat numbers
8–12 working days typical lead time; shorter for stock sizes
Choose Your Steel Bar & Rod by Material
Stainless Steel Rod & Round Bar
Bright, peeled or black stainless round bar for machining, fasteners and pump shafts.
By grade: 304 stainless steel rod, SS 316 rod, 303 stainless steel rod, 410 stainless steel round bar, 321, 630, 431, 2Cr13, 310S stainless steel rod, duplex round bar
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Stainless Steel Square Bar
Square sections for frames, gates, fixtures and machined blocks.
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Stainless Steel Hex Bar
Hexagon bar for nuts, fittings and bolts, so you machine less.
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Stainless Steel Flat Bar
Flat bar for brackets, trims, base plates and handrail parts.
Request a QuoteWhich Bar Fits Your Part?
Pick the material first, then the section that saves you the most machining.
If your part is…
Look at
Why
A shaft, pin or bracket that will be painted or oiled
Carbon steel bar
Lowest cost; 45# and similar grades heat-treat well
Wet, outdoor or food-contact
304 or 316 stainless rod
Corrosion resistance with no coating
Turned in high volume on automatic lathes
303 stainless steel rod
Free-machining grade; trades some corrosion resistance for speed
A nut, fitting or bolt head
Hex bar
The flats are already there
A bracket, plate or trim
Flat bar
Cut and drill; no milling needed
From experience: ask for the section closest to your finished part. Turning a hex out of round bar wastes material and machine hours you have already paid for.
Bar or Rod: Is There a Difference?
In daily trade, the two words mean the same thing. Many buyers say "rod" for smaller round sizes, such as a 6 mm steel rod. They use "bar" for larger rounds and for square, hex and flat sections.
What matters more is how you specify it. Give us the section, size (diameter, across flats or width × thickness), length, grade and surface. Add the diameter tolerance if your machining needs it, such as h9 or h11.
Request a QuoteProcessing Before Shipping
Cutting to length: bar cut to your fixed lengths, so you avoid offcut waste.
CNC machining: 4 machining centers and CNC lathes turn, mill, drill and thread parts from bar.
Polishing: bright and polished finishes on stainless bar.
See the ranges on our steel processing capabilities page.
Why Buy Bar & Rod From MTS
Carbon and stainless on one order. Mix grades and sections on one container.
A 60,000 m² site in Wuxi with stock, warehousing and processing together.
16+ years in the steel trade, exporting to more than 100 countries.
Standards you specify: ASTM, EN and other international standards.
Trial orders welcome, from a few bundles to full project volumes.
Frequently Asked Questions
What is the difference between a steel bar and a steel rod?
In trade use, almost none. "Rod" usually means a smaller round section. "Bar" covers larger rounds and also square, hex and flat sections. Order by section and size, not by the word, and you will get the right product.
Can I order different grades and sections together?
Yes. You can mix carbon and stainless bar, and round, square, hex and flat sections, on one container. List each item with grade, section, size, length and weight.
Can you machine parts from bar?
Yes. We turn, mill, drill and thread parts on CNC lathes and machining centers. Maximum turning diameter is 500 mm, with tolerance down to ± 0.02 mm. Send a drawing with tolerances, grade and quantity.
How do I get a price for steel bar?
Send the material, grade, section, size, length, surface, quantity and destination port. For standard products we reply within 2–4 working hours.
Request a Quote
Send grade, section, size, length and quantity. Add a drawing if you need machined parts.