Womic Stainless Steel Co., Ltd
Corrosion Resistance: Excellent resistance to pitting and crevice corrosion in chloride-containing environments, seawater, and aggressive chemical media, thanks to 2–3% molybdenum content.
High Strength: Excellent tensile and yield strength combined with good ductility, suitable for load-bearing structural applications.
Excellent Weldability: 316L grade ensures low carbon content for superior weld performance and easy fabrication, with reduced risk of intergranular corrosion.
Good Formability: Can be bent, cut, drilled and welded to meet specific project requirements.
Surface Quality: Smooth surface finish available in mill finish, pickled, polished, or brushed for architectural and sanitary applications.
Aesthetic Appearance: Bright silver finish provides excellent visual appeal for exposed structural elements.
International Certifications: Structural angles can be certified by ABS, BV, DNV, LR, GL, RINA, CCS, KR, and NK, and comply with NORSOK standards for offshore projects.
|
Standard |
Description |
Corresponding 316/316L Grade |
|
ASTM A276 / A479 |
Standard specification for stainless steel bars and shapes |
316 / 316L |
|
ASTM A484 |
General requirements for stainless steel bars and shapes |
316 / 316L |
|
EN 10088-2 / EN 10088-4 |
European standard for stainless steel structural sections |
1.4401 / 1.4404 |
|
JIS G4303 |
Japanese standard for stainless steel bars and shapes |
SUS316 / SUS316L |
|
GB/T 4226 |
Chinese standard for stainless steel cold-formed sections |
06Cr17Ni12Mo2 / 022Cr17Ni12Mo2 |
|
ISO 2766 |
International standard for stainless steel sections |
X5CrNiMo17-12-2 / X2CrNiMo17-12-2 |
|
ASME B36.19 |
Stainless steel pipe (reference for structural applications) |
316 / 316L |
|
NORSOK M-630 |
Offshore material standard |
316 / 316L |
These standards ensure that our 316/316L stainless steel equal angles meet global requirements for chemical composition, mechanical performance, dimensional tolerances, and testing methods.
|
Element |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
|
316 Equal Angles |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.030 |
≤1.00 |
16.0–18.0 |
10.0–14.0 |
2.0–3.0 |
|
316L Equal Angles |
≤0.03 |
≤2.00 |
≤0.045 |
≤0.030 |
≤1.00 |
16.0–18.0 |
10.0–14.0 |
2.0–3.0 |
Both 316 and 316L stainless steel equal angles exhibit excellent corrosion resistance and mechanical properties. The lower carbon content in 316L minimizes carbide precipitation during welding, providing enhanced resistance to intergranular corrosion compared to standard 316, especially in welded service environments.
|
Property |
Unit |
316 |
316L |
|
Tensile Strength |
MPa |
≥515 |
≥485 |
|
Yield Strength (0.2% offset) |
MPa |
≥205 |
≥170 |
|
Elongation |
% |
≥40 |
≥40 |
|
Hardness (Brinell) |
HBW |
≤201 |
≤192 |
|
Modulus of Elasticity |
GPa |
193 |
193 |
|
Density |
g/cm³ |
7.93 |
7.93 |
|
Melting Range |
°C |
1375–1400 |
1375–1400 |
|
Thermal Conductivity (100°C) |
W/m·K |
16.3 |
16.3 |
|
Coefficient of Thermal Expansion (20–100°C) |
μm/m·K |
15.9 |
15.9 |
Heat
Treatment Condition:
Both 316 and 316L stainless steel equal angles are normally supplied in
the annealed and pickled condition.
Solution annealing at 1040–1080°C followed by rapid cooling restores full
corrosion resistance, relieves internal stresses, and enhances ductility.
Delivery
Condition:
Angles are normally supplied in annealed and pickled condition, providing a clean,
smooth surface and excellent corrosion resistance. Upon request, bright annealed, polished, or brushed finishes can be
provided to meet specific architectural, sanitary, or aesthetic requirements.
|
Leg Length (A x B) |
Thickness (t) |
Weight (kg/m) – 316 |
Section Modulus (cm³) |
Moment of Inertia (cm⁴) |
|
20 x 20 mm |
3 mm |
0.89 |
0.8 |
1.1 |
|
25 x 25 mm |
3 mm |
1.12 |
1.5 |
2.2 |
|
25 x 25 mm |
4 mm |
1.45 |
1.9 |
2.8 |
|
30 x 30 mm |
3 mm |
1.36 |
2.1 |
3.5 |
|
30 x 30 mm |
4 mm |
1.78 |
2.8 |
4.6 |
|
40 x 40 mm |
3 mm |
1.83 |
3.5 |
7.2 |
|
40 x 40 mm |
4 mm |
2.40 |
4.6 |
9.4 |
|
40 x 40 mm |
5 mm |
2.95 |
5.6 |
11.3 |
|
50 x 50 mm |
4 mm |
3.04 |
7.1 |
18.0 |
|
50 x 50 mm |
5 mm |
3.75 |
8.7 |
21.9 |
|
50 x 50 mm |
6 mm |
4.50 |
10.2 |
25.6 |
|
60 x 60 mm |
5 mm |
4.54 |
13.7 |
42.7 |
|
60 x 60 mm |
6 mm |
5.40 |
16.2 |
50.3 |
|
65 x 65 mm |
5 mm |
4.95 |
16.5 |
55.1 |
|
65 x 65 mm |
6 mm |
5.89 |
19.5 |
65.0 |
|
65 x 65 mm |
8 mm |
7.70 |
25.0 |
83.0 |
|
75 x 75 mm |
6 mm |
6.85 |
26.0 |
100.0 |
|
75 x 75 mm |
8 mm |
9.00 |
34.0 |
130.0 |
|
75 x 75 mm |
10 mm |
11.00 |
41.0 |
158.0 |
|
100 x 100 mm |
6 mm |
9.25 |
45.0 |
227.0 |
|
100 x 100 mm |
8 mm |
12.20 |
59.0 |
297.0 |
|
100 x 100 mm |
10 mm |
15.10 |
72.0 |
363.0 |
|
120 x 120 mm |
8 mm |
14.80 |
88.0 |
530.0 |
|
120 x 120 mm |
10 mm |
18.30 |
108.0 |
650.0 |
|
120 x 120 mm |
12 mm |
21.80 |
127.0 |
764.0 |
|
150 x 150 mm |
10 mm |
23.10 |
180.0 |
1350.0 |
|
150 x 150 mm |
12 mm |
27.50 |
213.0 |
1600.0 |
|
150 x 150 mm |
15 mm |
34.00 |
260.0 |
1950.0 |
|
200 x 200 mm |
10 mm |
30.80 |
320.0 |
3230.0 |
|
200 x 200 mm |
12 mm |
37.50 |
380.0 |
3830.0 |
|
200 x 200 mm |
15 mm |
46.20 |
470.0 |
4710.0 |
|
200 x 200 mm |
20 mm |
60.80 |
610.0 |
6140.0 |
Note: Custom sizes, unequal angles, and longer lengths available upon request.
|
Parameter |
Size Range |
Permitted Tolerance |
|
Leg Length (A) |
≤50 mm |
±0.8 mm |
|
Leg Length (A) |
51-100 mm |
±1.2 mm |
|
Leg Length (A) |
101-150 mm |
±1.6 mm |
|
Leg Length (A) |
151-200 mm |
±2.0 mm |
|
Thickness (t) |
≤5 mm |
±0.3 mm |
|
Thickness (t) |
6-10 mm |
±0.5 mm |
|
Thickness (t) |
>10 mm |
±0.8 mm |
|
Squareness (90° angle) |
All sizes |
±1.0° |
|
Straightness |
All sizes |
2 mm per meter |
|
Length |
Standard 6m |
+50 mm / -0 mm |
Raw Material Selection: High-quality 316 and 316L stainless steel billets from certified mills (Baosteel, TISCO, POSCO, Outokumpu).
Heating: Billets heated to a controlled temperature (1100–1200°C) for hot rolling.
Hot Rolling: Billets passed through roughing and finishing stands (continuous rolling mill) to form angle shape.
Cooling: Controlled cooling to prevent distortion and maintain dimensional accuracy.
Straightening: Roller straightening to ensure straightness tolerance within 2 mm per meter.
Solution Annealing (Optional): Heat treatment at 1040–1080°C for optimal corrosion resistance (typically for pickled finish).
Pickling & Passivation: Removal of oxides and creation of passive film for enhanced corrosion protection.
Cutting: Cut to standard 6-meter lengths (or custom lengths per order).
Inspection & Marking: Each bundle inspected, marked with grade, heat number, dimensions, and standard.
|
Surface Type |
Description |
Typical Applications |
|
Annealed & Pickled (AP Finish) |
Bright silver appearance after acid treatment, oxide-free surface. |
Industrial structures, marine frameworks, chemical plants |
|
Mill Finish (MF) |
As-rolled surface with visible scale. |
Non-critical applications, embedded structures |
|
Polished Finish (180#, 240#, 320#, 400#) |
Smooth mechanical finish. |
Architectural railings, decorative frameworks |
|
Brushed / Hairline Finish |
Satin linear texture. |
Furniture, interior design, handrails |
|
Mirror Polished (8K) |
Ultra-reflective surface. |
High-end architectural, sanitary applications |
|
Passivated Finish |
Surface chemically treated to enhance corrosion protection. |
Marine, chemical, pharmaceutical applications |
|
Electropolished Finish |
Extremely clean, smooth, and hygienic finish. |
Food processing, pharmaceutical equipment |
Chemical Analysis: Spectrometer or PMI verification of alloy elements.
Mechanical Testing: Tensile, yield, elongation per ASTM A370.
Dimensional Inspection: Leg length, thickness, squareness, straightness, length.
Surface Inspection: Visual check for surface defects, cracks, and consistency.
Intergranular Corrosion Test: ASTM A262 Practice E for 316L.
Positive Material Identification (PMI): Upon customer request.
Third-Party Inspection: SGS, BV, DNV, TUV available upon customer request.
Chemical & Petrochemical Industry: Structural supports for acid-resistant lines, equipment frameworks, pipe racks, platform structures.
Marine & Offshore Engineering: Offshore platform structures, shipbuilding frameworks, seawater system supports, ballast system structures (ship classification certifications available from ABS, BV, DNV, LR, GL, RINA, CCS, KR, NK).
Pharmaceutical Equipment: Equipment frames, cleanroom structures, sanitary support systems, process line supports.
Food & Beverage Industry: Processing equipment frames, conveyor supports, sanitary piping supports, work platforms.
Water Treatment Plants: Filter frame supports, tank stiffeners, pipe support structures, walkway framing.
Architectural & Construction: Building frameworks, handrails, balustrades, curtain wall supports, structural glazing supports.
Power Generation: Equipment frames, cable tray supports, pipe rack structures, auxiliary systems.
Desalination Plants: Brine line supports, equipment framing, structural components for high-chloride environments.
Heat Exchangers: Support structures, frame assemblies, mounting brackets.
Transportation: Marine vessel frameworks, railcar components, trailer frames.
Standard Packaging:
Bundles with steel straps and woven fabric wrapping.
Plastic end protection for cut edges.
Wooden pallets for export sea-worthy transport.
Individual bundle labeling with grade, heat number, dimensions, quantity.
Womic Steel's Shipping Strengths:
Direct cooperation with global shipowners ensures competitive freight rates.
Professional loading and securing teams prevent bending and damage during transit.
Efficient document preparation minimizes customs delays.
Rapid delivery time – standard sizes kept in ready stock over 5,000 tons.
Continuous cargo tracking and after-sales follow-up.
1. What is
the difference between 316 and 316L stainless steel equal angles?
The main difference is carbon content. 316L has lower carbon (≤0.03% vs
≤0.08%), which prevents carbide precipitation during welding and provides
better resistance to intergranular corrosion. For welded structural applications,
316L is typically preferred.
2. Can 316
stainless steel equal angles be welded?
Yes, both 316 and 316L angles have excellent weldability. However, for
applications requiring post-weld corrosion resistance, 316L is recommended to
avoid sensitization.
3. What is
the standard length for stainless steel angles?
Standard length is 6 meters (20 feet). Custom lengths from 1m to 12m available
upon request.
4. Are
your equal angles suitable for marine environments?
Yes, 316/316L stainless steel equal angles offer excellent resistance to
seawater corrosion and are certified by major classification societies for
marine applications.
5. What is
the difference between equal angle and unequal angle?
Equal angle has both legs of the same length (e.g., 50x50mm). Unequal angle has
legs of different lengths (e.g., 75x50mm). Both are available from Womic Steel.
6. Do you
provide material test reports (MTR) and certification?
Yes, every shipment includes EN 10204 Type 3.1 MTR with chemical analysis and
mechanical properties. Third-party inspection available.
Complete Size Range: From 20x20mm to 200x200mm – all standard sizes in stock.
Strict Quality Control: ISO 9001, PED, and marine classification society certified.
Full Traceability: Heat number on each bundle – traceable to raw material.
Flexible Customization: Special lengths, surface finishes, and non-standard sizes available.
Marine & Offshore Expertise: ABS, BV, DNV, LR certifications available.
Large Inventory: Over 5,000 tons in stock – ready for immediate dispatch.
Global Delivery: Exported to over 50 countries with reliable logistics support.
Competitive Pricing: Direct mill sourcing eliminates middlemen costs.
Tel / WhatsApp:
Victor: +86 15575100681
Jack: +86 18390957568
E-mail: info@womicstainless.com
Website: www.womicsteel.com
Contact Womic Steel today for a competitive quote on 316/316L stainless steel equal angles. We offer certified quality, rapid delivery, and reliable global shipping for your structural projects.
Stock Examples (316L Equal Angles – 6m length – Annealed & Pickled):
|
Thickness |
Weight |
Application |
|
|
25x25mm |
3mm |
1.12 kg/m |
Light framework, handrails |
|
40x40mm |
4mm |
2.40 kg/m |
Equipment frames, supports |
|
50x50mm |
5mm |
3.75 kg/m |
Pipe racks, structural supports |
|
65x65mm |
6mm |
5.89 kg/m |
Marine framing, offshore |
|
75x75mm |
8mm |
9.00 kg/m |
Heavy structural, platforms |
|
100x100mm |
10mm |
15.10 kg/m |
Column supports, heavy frames |
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