21 Feb, 2026 Let me ask you something.
When was the last time you really looked at the handles on your doors? Not just glanced at them. Really looked. Felt the weight. Noticed the finish. Thought about whether they will last or start looking ugly in a year.
Most people never do. They just pick whatever is cheap or whatever the shopkeeper suggests. Then six months later the handle is loose, the finish is peeling, or it just feels flimsy in your hand.
If you are building a home or working on a project in Delhi, you need to know about handles. What they are made of. How they are finished. And most importantly, where to get good ones.
Today we are talking about CROWN ISI. We are a trusted Mortise Handle manufacturer in Delhi. And we want to help you understand what goes into a good mild steel handle and other options. Let us get into it.
What Is A Mortise Handle?
First, let us make sure we are talking about the same thing.
A mortise handle is a door handle that works with a mortise lock. The lock itself fits inside a pocket cut into the edge of the door. That pocket is called a mortise. Hence the name.
The handle connects to the lock through a spindle. When you turn the handle, the spindle turns the lock mechanism. The door opens.
This is different from a simple latch or a rim lock that mounts on the surface. Mortise locks are more secure. They are common on main doors, office doors, and commercial buildings.
The handle itself can be made from different materials. mild steel handle options are popular. Stainless steel. Zinc alloy. Brass. Each has its own pros and cons.
CROWN ISI makes mortise handles in various materials. But we are especially known for our mild steel handle products. Let me explain why.
Materials Used For Mortise Handles
The material a handle is made from determines everything. How it feels. How long it lasts. How it looks over time.
Mild Steel
Mild steel is also called low carbon steel. It has less than 0.3 percent carbon. That low carbon content makes it soft and easy to work with. You can shape it, weld it, and machine it without too much trouble.
Mild steel is strong. Tensile strength is around 400-550 MPa . Plenty for door handles that get used thousands of times.
The catch is that mild steel rusts. It has no chromium to protect it. So it needs a coating. Paint. Powder coating. Something to keep moisture away.
CROWN ISI takes care of this. Our mild steel handle products get proper finishing so they last. We have been making them since 1975 . That is almost 50 years of experience.
Stainless Steel
Stainless steel has chromium and nickel added. The chromium creates a shield that stops rust. The nickel adds strength and shine.
Stainless steel handles cost more than mild steel. But they never rust. They are great for bathrooms, coastal areas, or anywhere with moisture.
Some manufacturers use 304 grade stainless steel . This is the good stuff. 18% chromium, 8% nickel. Real rust protection.
Zinc Alloy
Zinc alloy is cheaper than stainless steel. It can be cast into complex shapes. Many decorative handles are made from zinc alloy.
The quality varies a lot. Cheap zinc alloy can break or corrode. Good zinc alloy with proper plating can last .
Brass
Brass is premium. Heavy. Smooth. Naturally resists corrosion. Solid brass handles feel different in your hand. They have weight and substance .
But brass is expensive. That is why it is used mostly in high-end homes and hotels.
Why Choose Mild Steel Handles?
Here is why mild steel handle products are so popular.
Cost
Mild steel is affordable. Much cheaper than stainless steel or brass. If you are doing a whole house or a commercial project, the savings add up.
Strength
Mild steel is strong enough for normal use. A door handle gets pulled and pushed thousands of times. Mild steel handles this just fine.
Workability
Because mild steel is soft, you can make all kinds of shapes with it. Simple designs. Fancy designs. Whatever you need. This is why you see so many different styles in the market.
Availability
Mild steel is everywhere. Easy to find. Easy to get in any quantity. This matters when you need consistent supply.
The key is proper finishing. Raw mild steel rusts. Finished mild steel lasts for years.
CROWN ISI has been a Mortise Handle manufacturer in Delhi for decades. We know how to finish mild steel right.
Types Of Finishes For Handles
The finish is what protects the handle and makes it look good. Here are common options.
Powder Coating
Dry powder sprayed on then baked. Tough. Durable. Comes in many colors. Lasts for years if done right.
Powder coating is great for mild steel handle products. It creates a thick protective layer. Scratches don't go through easily.
Electroplating
Chrome plating. Nickel plating. Brass plating. This gives a shiny, metallic look. Often used on zinc alloy and brass handles .
The quality depends on how many layers are applied and how thick they are. Cheap plating peels. Good plating lasts.
Satin Finish
Not shiny. Not dull. In between. Shows fewer fingerprints. Looks modern. Popular in contemporary homes .
Antique Finish
Made to look old. Darkened in the recesses. Highlights on the high spots. Popular for traditional and vintage styles .
Paint
Cheaper than powder coating. Can chip or scratch. Good for indoor use where handles don't get beat up.
What Makes A Good Mortise Handle?
Quality is not just about looks. Here is what separates good handles from bad ones.
Feel The Weight
Pick up a handle. Does it feel solid? Or light and hollow? Good handles have weight. They feel substantial in your hand.
Check The Action
Turn the handle. Does it move smooth? Or does it feel gritty? Good handles have smooth action. No grinding. No catching.
Look At The Finish
Is the finish even? Any thin spots? Any rough patches? Good handles have consistent finish all over.
Examine The Spindle
The spindle is the part that goes through the door and turns the lock. It needs to be strong. It needs to fit properly. Cheap spindles twist or break.
Check The Screws
Good handles come with good screws. Stainless steel screws that match the handle. Cheap screws rust or strip.
CROWN ISI pays attention to all these details. That is why we are a trusted Mortise Handle manufacturer in Delhi.
Why Delhi Manufacturers Are Trusted
Delhi has a long history of hardware manufacturing. Areas like Kucha Pati, Bazar Sita Ram have been making hardware for generations .
CROWN ISI started in 1975 in Delhi . That is almost 50 years of making door fittings. Tower bolts. Door handles. Door stoppers. All kinds of hardware .
The advantage of buying from a local manufacturer is quality control. You can visit. You can see the products. You can talk to the people making them.
When you buy from CROWN ISI, you are buying from people who have been in this business for decades. We know what works. We know what fails. We build handles that last.
Where To Use Different Handles
Different places need different handles.
Main Doors
Need strong handles. Mortise handles with good locks. Mild steel with powder coating works. Stainless steel is even better if budget allows.
Bedroom Doors
Standard lever handles work fine. mild steel handle with powder coating. Many color options available .
Bathroom Doors
Moisture is a problem here. Stainless steel is best. Or mild steel with excellent powder coating. Avoid raw metal that can rust.
Office Doors
Commercial use means lots of traffic. Handles need to be durable. Stainless steel is a good choice. Strong and long lasting .
Furniture And Cabinets
Smaller handles. Knobs. Pulls. Mild steel works well. Many finish options available.
Frequently Asked Questions
Here are the things people usually want to know about mild steel handle products and finding a trusted Mortise Handle manufacturer in Delhi.
1. What is a mortise handle?
A handle that works with a mortise lock. The lock fits inside the door edge. The handle turns a spindle that operates the lock.
2. Why choose mild steel for handles?
Mild steel is strong, affordable, and easy to shape. With proper finishing, it lasts for years. A great value option.
3. Does mild steel rust?
Yes, raw mild steel rusts. That is why finishing is important. Powder coating or painting protects it. CROWN ISI mild steel handle products have proper finishes.
4. What finishes does CROWN ISI offer?
We offer powder coating in various colors. Also other finishes depending on the product. Ask your dealer about options.
5. Are CROWN ISI handles made in Delhi?
Yes. We are a Delhi-based Mortise Handle manufacturer in Delhi. Our facility is in Kucha Pati, Bazar Sita Ram . We have been making hardware since 1975 .
6. What is the difference between mild steel and stainless steel?
Mild steel is cheaper and needs coating to prevent rust. Stainless steel has chromium that stops rust naturally. Stainless costs more but needs less maintenance.
7. How do I choose the right handle size?
Standard mortise handles fit most doors. The key is the spindle size and backplate dimensions. Ask your carpenter or dealer for help.
8. Can I use mild steel handles in a bathroom?
Only if they have excellent powder coating. Bathrooms have moisture. Stainless steel is a safer choice for bathrooms.
9. Do CROWN ISI handles come with screws?
Yes. All our handles come with matching mounting hardware. Use the screws provided for best results.
10. What is the warranty on CROWN ISI handles?
We stand behind our products. Ask your dealer about specific warranty terms for the handle you buy.
11. How do I clean and maintain mild steel handles?
Wipe with a damp cloth. Dry it after. No harsh chemicals. If the finish gets scratched, touch it up to prevent rust.
12. Why choose CROWN ISI over other manufacturers?
Almost 50 years of experience. Quality materials. Proper finishes. Consistent products. We are a trusted Mortise Handle manufacturer in Delhi for good reason.
Final Thoughts
Handles are small things. But you touch them every single day. A good handle feels right. It works smooth. It looks good for years.
The material matters. The finish matters. The manufacturer matters.
CROWN ISI has been making quality hardware in Delhi since 1975 . We know mild steel handle products. We know mortise handles. We know what lasts and what doesn't.
So next time you need handles, look for CROWN ISI. Whether you need mild steel handle options or something else, we have you covered. As a trusted Mortise Handle manufacturer in Delhi, we build handles that work and last.
Spend a little more now on quality hardware. Save yourself a lot of headache later. Your doors will thank you. Every time you open them, you will feel the difference.
