Different grades of steel

ASTM A276 Stainless Steel Bar

ASTM A276 stainless steel bars deliver proven reliability in demanding environments, from marine hardware to chemical processing—trusted for 15+ years for their consistent quality and grade-specific performance.

Description

The Stainless Steel Bar You Can Rely On – And We Know Because We’ve Seen It Through

We’ve been supplying ASTM A276 stainless steel bars for over 15 years, and in that time, we’ve learned what really matters: consistency, performance, and knowing the why behind every grade. Whether it’s a 316L bar standing up to salt spray in offshore platforms or a hardened 420 grade holding its edge in medical instruments, the right material makes all the difference. We don’t just stock bars — we match them to real-world demands.

Take corrosion resistance, for example. It’s not just about saying “excellent in harsh environments.” A 316 bar with 2.5% molybdenum will handle coastal conditions far better than 304 — and we’ve tested both in real marine installations. For high-heat applications, 321 (with titanium stabilization) resists intergranular attack up to 850°C, while 310S thrives at temperatures exceeding 1100°C. We control the solution annealing process carefully — holding at 1040–1120°C followed by rapid quenching — to ensure maximum corrosion resistance and ductility.

Built for Precision, Not Just Standards

Our bars range from 3mm to 500mm in diameter, with ground finishes achieving tolerances as tight as ±0.01mm, critical for precision shafts and hydraulic components. Straightness is kept under 0.5mm/m — something we verify with laser alignment systems, not just feeler gauges. You’ll find them in:
* Food-grade 304L shafts where smooth, non-porous surfaces prevent bacterial buildup
* Hexagonal 316 bars used in chemical plant valves, exposed to aggressive media
* Ground 410 bars in automotive sensors requiring consistent magnetic response
* Polished 321 bars in furnace parts, where thermal cycling demands crack resistance

We work with SGS, TÜV, and BV for third-party verification — because in critical applications, you need proof, not promises. All our material comes with full mill test reports (MTRs), and we support PPAP documentation for automotive clients.

Why We’re the Partner You Keep Coming Back To

Being a China-based factory, we combine deep metallurgical expertise with agile production. Need a 12m 316 bar with a mirror-polished finish and custom chamfer? We’ve done it. Running a small batch of 420 with 52 HRC hardness? We’ll heat treat it in-house using calibrated furnaces. Our advantage isn’t just cost — it’s flexibility, full traceability, and a team that speaks your engineering language.

Reach out with your specs. We don’t just quote — we ask questions to make sure you get the right bar, not just any bar.

Frequently Asked Questions

What products does Baoli Steel mainly produce?
Baoli Steel specializes in the R&D and manufacturing of high-quality steel products, including:
Plate Series: Hot-rolled steel plates, cold-rolled steel plates, galvanized plates (GI/GL), stainless steel plates, checkered plates, medium and heavy plates, etc.
Pipe Series: Seamless steel pipes, welded steel pipes, galvanized pipes, spiral pipes, square/rectangular pipes, etc.
Profile Series: I-beams, channel steel, angle steel, H-beams, round bars, flat bars, etc.
Custom Processing: Supports steel cutting, bending, punching, and surface treatment (spraying, galvanizing) services.
Can you provide customized specifications or OEM services?
Yes! We offer:
Specification Customization: Special sizes, thicknesses, and materials based on customer needs (minimum order quantity depends on product type).
Processing Customization: Processing based on drawings or samples, supporting laser cutting, beveling, heat treatment, etc.
Packaging Customization: Customized packaging methods (e.g., wooden crates, pallets, rust-proof films) and labeling as per customer requirements.
What is the production cycle and delivery method for orders?
Standard Orders: 7-15 working days (depending on product type and quantity).
Customized Orders: 15-30 working days (sample confirmation time required).
Transportation Methods: Supports sea, land, and air transport; we can assist with customer-specified logistics or provide optimal shipping solutions.
What are your main markets and customer cases?
Baoli Steel’s products are exported to over 60 countries and regions, mainly covering:
Southeast Asia: Vietnam, Thailand, Malaysia
Middle East: UAE, Saudi Arabia, Iran
Africa: Nigeria, South Africa, Egypt
South America: Brazil, Mexico
Our customers include construction engineering companies, manufacturing plants, trading companies, and energy enterprises.

Different grades of steel