China Suppliers Factory 304 304L 316 Stainless Steel Angle Bars - Sizes from 1mm to 25mm, Custom Lengths Available
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Stainless Steel Angle
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Multiple Grades Available
Mainstream grades including 201, 304, and corrosion-resistant 316L to suit diverse environments.
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Superior Corrosion Resistance
304 handles humid environments; 316L resists acid-alkali corrosion for demanding applications.
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Customizable Surface Finishes
Pickling, 2B cold rolling, and wire drawing treatments balance structural rigidity and visual appeal.
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Wide Industry Applications
Used in construction, machinery, chemical, municipal engineering, and kitchen/bathroom sectors.
Stainless steel angle bars are L-sectioned stainless steel profiles, classified into equal-sided and unequal-sided variants, with mainstream grades including 201, 304, and corrosion-resistant 316L. Customizable surface treatments (pickling, 2B cold rolling, wire drawing) enable them to balance structural rigidity and visual appeal, positioning them as core load-bearing and framing components across diverse industries.
Their standout advantages are multi-fold: 304-grade bars handle routine humid environments, while 316L grades resist acid-alkali corrosion; they offer high tensile strength and bending toughness to bear heavy loads without deformation; their ease of cutting and welding supports tailored assembly; surface finishes merge utility with aesthetics; and their service life vastly outperforms carbon steel angle bars.
These bars serve broad applications: in construction, they act as curtain wall keels and railing supports; in machinery manufacturing, they form equipment frames and transmission component substrates; in the chemical sector, they fabricate pipeline supports and tank reinforcement; in municipal engineering, they fit street light bases and manhole cover frames; and in kitchen/bathroom fields, they are processed into hardware accessories, striking a perfect balance between functionality and durability.
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Installation & Maintenance Tips: Prior to installation, degreasing and rust removal pre-treatment is mandatory. Assembly methods (welding, bolting, riveting) are scenario-dependent: bolting is preferred for highly corrosive chemical settings to avoid weld corrosion, reinforcing shims are added to heavy-load zones, and post-welding passivation ensures joint strength and corrosion resistance. During use, avoid direct carbon steel contact to prevent galvanic corrosion, reserve thermal expansion joints for outdoor setups, and opt for 316L grade with anti-corrosion coatings in strong acid conditions. Daily maintenance: wipe with neutral detergent, treat rust spots with specialized removers followed by passivation, inspect connections regularly, and store in moisture-proof, ventilated spaces to avoid deformation.
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Product Parameters
| Specifications | Unit Weight (kg/m) | Specifications | Unit Weight (kg/m) | Specifications | Unit Weight (kg/m) |
| KG | KG | KG | |||
| 20*20*3 | 0.89 | 63*63*8 | 7.47 | 110*110*7 | 11.9 |
| 20*20*4 | 1.15 | 63*63*10 | 9.15 | 110*110*8 | 13.5 |
| 25*25*3 | 1.12 | 70*70*4 | 4.37 | 110*110*10 | 16.7 |
| 25*25*4 | 1.46 | 70*70*5 | 5.4 | 110*110*12 | 19.8 |
| 30*30*3 | 1.37 | 70*70*6 | 6.41 | 110*110*14 | 22.8 |
| 30*30*4 | 1.79 | 70*70*7 | 7.4 | 125*125*8 | 15.5 |
| 36*36*3 | 1.66 | 70*70*8 | 8.37 | 125*125*10 | 19.1 |
| 36*36*4 | 2.16 | 75*75*5 | 5.82 | 125*125*12 | 22.7 |
| 36*36*5 | 2.65 | 75*75*6 | 6.91 | 125*125*14 | 26.2 |
| 40*40*3 | 1.85 | 75*75*7 | 7.98 | 125*125*16 | 29.6 |
| 40*40*4 | 2.42 | 75*75*8 | 9.03 | 140*140*10 | 21.5 |
| 40*40*5 | 2.98 | 75*75*9 | 10.1 | 140*140*12 | 25.5 |
| 45*45*3 | 2.09 | 75*75*10 | 11.1 | 140*140*14 | 29.5 |
| 45*45*4 | 2.74 | 80*80*5 | 6.21 | 140*140*16 | 33.4 |
| 45*45*5 | 3.37 | 80*80*6 | 7.38 | 150*150*8 | 18.6 |
| 45*45*6 | 3.99 | 80*80*7 | 8.53 | 150*150*10 | 23.1 |
| 50*50*3 | 2.33 | 80*80*8 | 9.66 | 150*150*12 | 27.4 |
| 50*50*4 | 3.06 | 80*80*9 | 10.8 | 150*150*14 | 31.7 |
| 50*50*5 | 3.77 | 80*80*10 | 11.9 | 150*150*15 | 33.8 |
| 50*50*6 | 4.46 | 90*90*6 | 8.35 | 150*150*16 | 35.9 |
| 56*56*3 | 2.62 | 90*90*7 | 9.66 | 160*160*10 | 24.7 |
| 56*56*4 | 3.45 | 90*90*8 | 10.9 | 160*160*12 | 29.4 |
| 56*56*5 | 4.25 | 90*90*9 | 12.2 | 160*160*14 | 34 |
| 56*56*6 | 5.04 | 90*90*10 | 13.5 | 160*160*16 | 38.5 |
| 56*56*7 | 5.81 | 90*90*12 | 15.9 | 180*180*12 | 33.2 |
| 56*56*8 | 6.57 | 100*100*6 | 9.37 | 180*180*14 | 38.4 |
| 60*60*5 | 4.58 | 100*100*7 | 10.8 | 180*180*16 | 43.5 |
| 60*60*6 | 5.43 | 100*100*8 | 12.3 | 180*180*18 | 48.6 |
| 60*60*7 | 6.26 | 100*100*9 | 13.7 | 200*200*14 | 42.9 |
| 60*60*8 | 7.08 | 100*100*10 | 15.1 | 200*200*16 | 48.7 |
| 63*63*4 | 3.91 | 100*100*12 | 17.9 | 200*200*18 | 54.4 |
| 63*63*5 | 4.82 | 100*100*14 | 20.6 | 200*200*20 | 60.3 |
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Packing And Shipping
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Frequently Asked Questions
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What is the difference between 304 and 316L stainless steel angle bars?
304-grade stainless steel angle bars are suitable for routine humid and mildly corrosive environments, offering excellent general-purpose performance. 316L grade contains added molybdenum, which significantly enhances resistance to acid, alkali, and chloride corrosion, making it the preferred choice for chemical processing, marine, and strong acid environments.
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What surface finish options are available for stainless steel angle bars?
Stainless steel angle bars can be customized with several surface treatments: pickling (for a matte, clean surface), 2B cold rolling (smooth, reflective finish), and wire drawing (brushed texture for decorative applications). Each finish serves different functional and aesthetic requirements across industries.
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What are the recommended assembly methods for stainless steel angle bars?
Assembly methods include welding, bolting, and riveting, depending on the application scenario. Bolting is strongly recommended for highly corrosive chemical environments to avoid weld zone corrosion. For heavy-load zones, reinforcing shims should be added. When welding is used, post-weld passivation treatment is essential to restore corrosion resistance at the joints.
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How should stainless steel angle bars be maintained during daily use?
Daily maintenance is straightforward: wipe surfaces with a neutral detergent and soft cloth. For any rust spots, apply a specialized stainless steel rust remover followed by passivation treatment. Regularly inspect all connection points for looseness or corrosion. Store bars in moisture-proof, well-ventilated spaces to prevent deformation and surface degradation.
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Can stainless steel angle bars be used in outdoor installations?
Yes, stainless steel angle bars are well-suited for outdoor use. However, it is important to reserve thermal expansion joints during installation to accommodate temperature-induced dimensional changes. For environments exposed to strong acids or salt spray, 316L grade combined with anti-corrosion coatings is recommended. Also, avoid direct contact with carbon steel components to prevent galvanic corrosion.
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What industries commonly use stainless steel angle bars?
Stainless steel angle bars are widely used across multiple industries: in construction as curtain wall keels and railing supports; in machinery manufacturing for equipment frames and transmission substrates; in the chemical industry for pipeline supports and tank reinforcement; in municipal engineering for street light bases and manhole cover frames; and in the kitchen and bathroom sector for hardware accessories and structural components.