Stainless Steel Square Bar Supplier

Stainless Steel Square Bar

Broad size range: cold‑drawn small 3×3 mm to heavy‑duty 150×150 mm
Rich grade portfolio: austenitic, duplex & precipitation‑hardening grades
Complies with ASTM A276 & EN10088, fits global engineering procurement
Near‑net‑shape square profile, reduces machining workload for fixtures & molds

Product Overview

Stainless Steel Square Bar is a solid square-section stainless steel bar widely applied in decorative structures, mold manufacturing, anti-corrosion equipment and precision tooling fixture production. Manufactured according to EN10088 and ASTM A276 international standards, it provides stable stainless steel material solutions for global engineering procurement.

The product features a square cross-section structure that provides convenient cutting, positioning and machining performance. Hot-rolled Stainless Steel Square Bar covers sizes from 5×5mm up to 150×150mm, while cold-drawn square bar supports minimum dimensions of 3×3mm for smaller precision components.

A wide range of stainless steel grades is available, including 304, 304L, 316, 316L, 321, 310S, 430, 2205, 2507, 904L and 17-4PH. Different grades provide different levels of corrosion resistance, temperature resistance and mechanical strength for various industrial environments.

With its stable square geometry and reliable material performance, Stainless Steel Square Bar is commonly processed into decorative frames, mold insert blocks, corrosion-resistant equipment racks and precision tooling fixtures. The square profile helps reduce cutting and shaping workload during fabrication.

Stainless Steel Square Bar

Chemical & Mechanical Property Snapshot

Grade	Equivalent Brand	C Max	Cr	Ni	Mo	Yield Strength (MPa) Min	Tensile Strength (MPa) Min	Elongation (%) Min	Hardness HB Max
304	1.4301 / X5CrNi18-10 / SUS304 / 06Cr19Ni10	0.08	18.00–20.00	8.00–11.00	—	205	515	40	201
304L	1.4307 / X2CrNi18-9 / SUS304L / 022Cr19Ni10	0.03	18.00–20.00	8.00–12.00	—	170	485	40	201
316	1.4401 / X5CrNiMo17-12-2 / SUS316 / 06Cr17Ni12Mo2	0.08	16.00–18.50	10.00–14.00	2.00–3.00	205	515	40	217
316L	1.4404 / X2CrNiMo17-12-3 / SUS316L / 022Cr17Ni12Mo2	0.03	16.00–18.50	10.00–14.00	2.00–3.00	170	485	40	217
321	1.4541 / X6CrNiTi18-10 / SUS321 / 06Cr18Ni11Ti	0.08	17.00–19.00	9.00–12.00	—	205	515	40	217
310S	1.4845 / X12CrNi25-21 / SUS310S / 06Cr25Ni20	0.08	24.00–26.00	19.00–22.00	—	205	515	40	217
430	1.4016 / X6Cr17 / SUS430 / 10Cr17	0.12	16.00–18.00	≤0.75	—	205	450	22	183
2205	1.4462 / X2CrNiMoN22-5-3 / SUS329J3L / 022Cr22Ni5Mo3N	0.03	21.00–23.00	4.50–6.50	2.50–3.50	450	620	25	293
2507	1.4410 / X2CrNiMoN25-7-4 / SUS329J4L / 022Cr25Ni7Mo4N	0.03	24.00–26.00	6.00–8.00	3.00–5.00	550	795	15	310
904L	1.4539 / X1NiCrMoCu25-20-5 / SUS904L / 015Cr21Ni26Mo5Cu2	0.02	19.00–21.00	24.00–26.00	4.00–5.00	220	490	35	215
17-4PH	1.4542 / X5CrNiCuNb17-4-4 / SUS630 / 05Cr17Ni4Cu4Nb	0.07	15.50–17.50	3.00–5.00	—	1104	1166	10	375

Detailed Technical Specifications

Item	Specification
Product Name	Stainless Steel Square Bar
Material Type	Stainless Steel
Shape	Square Solid Bar
Manufacturing Standards	EN10088, ASTM A276
Production Type	Hot-Rolled Square Bar / Cold-Drawn Square Bar
Hot-Rolled Size Range	5×5mm – 150×150mm
Cold-Drawn Size	Minimum 3×3mm
Available Grades	304, 304L, 316, 316L, 321, 310S, 430, 2205, 2507, 904L, 17-4PH
Surface / Processing	According to production requirements
Material Performance	Corrosion resistance, temperature resistance, mechanical strength
Quality Control	Mill Test Certificate with heat number, chemical composition and mechanical property records
Packaging	Seaworthy bundled packing to prevent scratches and deformation
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit

Size Specification Table

Production Type	Side Dimension	Tolerance	Surface Finish	Length Range
Cold Drawn Stainless Steel Square Bar	3×3 mm–50×50 mm	±0.02–±0.05 mm	Bright polished / Pickled	1000–6000 mm, custom cut
Hot Rolled Stainless Steel Square Bar	5×5 mm–150×150 mm	±0.3–±1.0 mm	Black / Pickled & Passivated	2000–6000 mm, custom cut

Product Comparison Table

Comparison Item	Stainless Steel Square Bar	Stainless Steel Round Bar	Carbon Steel Square Bar
Material	Austenitic / Duplex / Precipitation-Hardening Stainless Steel	Austenitic / Duplex / Precipitation-Hardening Stainless Steel	Carbon Structural Steel
Cross Section	Solid Square	Solid Round	Solid Square
Main Advantage	Stable square geometry, easy clamping & positioning, reduces machining workload for fixtures & molds	Excellent circumferential machining flexibility, ideal for rotary parts	Low cost, good weldability for general structural use
Manufacturing Standard	EN 10088, ASTM A276	GB/T 1220, ASTM A276, ASTM A484, EN 10088-3	GB/T 706, ASTM A36, EN 10025
Size Range	Cold-drawn: Min. 3×3 mm; Hot-rolled: 5×5 mm–150×150 mm	Φ3 mm–Φ300 mm	5×5 mm–200×200 mm
Full Available Grades & Equivalent	304 (1.4301), 304L (1.4307), 316 (1.4401), 316L (1.4404), 321 (1.4541), 310S (1.4845), 430 (1.4016), 2205 (1.4462), 2507 (1.4410), 904L (1.4539), 17-4PH (1.4542)	304 (1.4301), 304L (1.4307), 316 (1.4401), 316L (1.4404), 321 (1.4541), 310S (1.4845), 430 (1.4016), 2205 (1.4462), 2507 (1.4410), 904L (1.4539), 17-4PH (1.4542)	Q235B, Q355B, S235JR, S355JR, ASTM A36
Processing Advantage	Pre-shaped square profile, less cutting & shaping work	Suitable for turning, grinding, and shaft manufacturing	Easy cutting, welding & forming
Corrosion Resistance	Excellent (grade-dependent: 904L / 2507 > 316L > 304 > 430)	Excellent (grade-dependent: 904L / 2507 > 316L > 304 > 430)	Poor; requires anti-corrosion coating
Typical Applications	Decorative frames, mold inserts, anti-corrosion equipment racks, precision tooling fixtures	Chemical equipment, marine parts, medical components, aerospace, pump shafts	Building supports, general machinery structural parts, brackets

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Corrosion-Resistant Equipment Frames

Mold Inserts

Decorative Structural Frames

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is Stainless Steel Square Bar used for?

Stainless Steel Square Bar is commonly used for decorative structures, mold inserts, anti-corrosion equipment racks and precision tooling fixtures.

What standards does Stainless Steel Square Bar follow?

The product is manufactured according to EN10088 and ASTM A276 standards for international engineering applications.

What sizes are available for Stainless Steel Square Bar?

Hot-rolled square bar covers 5×5mm to 150×150mm, while cold-drawn square bar can reach 3×3mm minimum size.

Which stainless steel grades are available?

Available grades include 304, 316L, 321, 2205, 904L and 17-4PH, covering different corrosion resistance and strength requirements.

Can Stainless Steel Square Bar support precision manufacturing?

Yes. Its stable square profile reduces cutting and shaping workload and is suitable for precision tooling fixture production.

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Stainless Steel Square Bar Supplier