Mild Steel Rings

Mild steel ring manufacturer in India — EN8, EN3B, EN1A welded, forged & rolled rings. Custom sizes, competitive pricing, export to GCC & Asia.

Mild Steel Rings
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Mild Steel Rings

Suntech Forge India is a reliable Mild Steel Ring Manufacturer in India, supplying high-quality welded, forged, and rolled rings in standard as well as customized sizes based on client requirements.

Mild steel (low-carbon) rings offer dependable strength, weldability, and economy for applications where stainless corrosion resistance is not the primary requirement—typical references include IS 2062, S275, and commercial grades such as EN8, EN3B, and EN1A.

verified_user Excellent Corrosion Resistance
workspace_premium High Strength & Durability
shield_with_heart Withstands Extreme Conditions
military_tech Long Service Life

Mild Steel Ring Specification

Available grades:

  • EN8 rings
  • EN3B rings
  • EN1A rings

Ring Weight

60,000 lbs

Thickness

300 mm

Face Height

Up to 49 inches

OD

145 to 3000 mm

Finish

Forged black or proof machined

Forging

Hot rolled, open die, and closed die as applicable

Product Overview

Mild steel rings are widely used due to their cost-effectiveness, durability, and versatility. Rings are available in multiple grades and can be customized for industrial applications.

Our Capability

Forging
Heat treatment
Machining & sawing

Available Grades

EN8 rings EN3B rings EN1A rings

Mild Steel Ring Sizes

  • Face height: Up to 49″
  • Ring weight: 60,000 lbs
  • Thickness: 300 mm
  • OD: 145 to 3000 mm

Our Strength

Cheapest cost
Forging as per drawing
Custom forging solutions
Transparent dealings
On-time delivery

Value Added Services

Normalizing
Hardening
Heat treatment
Annealing
Age hardening
Quenching & tempering

Surface Finish

  • Forged black
  • Proof machined

Size Chart of Mild Steel Socket Ring

Ring diameter Inside diameter Thickness
10 8 2
12 10 2
16 14 2
20 18 2.5
25 23 2.5
32 30 3
40 38 3
50 48 4
63 61 4
76 74 5
89 87 5
102 100 6
114 112 6
140 138 8
160 158 8
200 198 10

Applications

Gaskets
Machinery parts
Flanges
Heavy equipment
Art & decorative

Forging Method

  • Drop / upset forging
  • Open / closed die
  • Impression die forging
  • Cold / hot forging

Testing & Quality Assurance

  • Heat treatment
  • Quality assurance
  • Liquid penetrant testing
  • Ultrasonic testing
  • NDT / PMI testing

Packaging

  • Wooden case
  • Plastic wrapping
  • Carton box

Types of Mild Steel Rings

  • Mild steel welded rings
  • Mild steel round rings
  • Mild steel forged rings
  • Mild steel rolled rings
  • Non-polished MS seal rings
  • Plate cut rings
  • Socket rings
  • Hot forged rings
  • Seamless rolled rings
  • Custom mild steel rings

Benefits of Mild Steel Rings

Cost-effective
Versatile
Customizable
Durable

Mild Steel vs Stainless Steel

Property Mild steel Stainless steel
Carbon content 0.05–0.25% 0.03–0.10%
Tensile strength 370–580 MPa 520–1000 MPa
Yield strength 250–400 MPa 210–800 MPa
Hardness 120–250 HB 150–300 HB
Ductility High Moderate
Corrosion resistance Low High
Cost Lower Higher

Weight Chart

Outer diameter Inner diameter Thickness Weight
50 40 5 1.57
70 60 5 2.84
100 80 5 5.09
150 130 6 10.89
200 180 8 17.68
250 220 10 27.35
300 270 12 38.61
400 370 15 70.64

(Dimensions in mm; weight in kg.)

Heat Treatment Process

Process Temperature (°C) Duration
Annealing 600–700 60–120 min
Normalizing 850–900 60–90 min
Quenching 800–850 Varies
Tempering 300–600 30–120 min
Hardening 850–900 Varies

Standards

Grade ASTM ISO JIS
EN8 ASTM A29 ISO 683-2 JIS S45C
EN3B ASTM A36 ISO 630 JIS SS400
EN1A ASTM A106 ISO 1181 JIS S10C

Chemical Composition

Element EN8 EN3B EN1A
Carbon 0.35–0.45% 0.10–0.20% 0.08–0.13%
Manganese 0.60–0.90% 0.30–0.60% 0.30–0.60%
Phosphorus ≤0.035% ≤0.040% ≤0.040%
Sulfur ≤0.035% ≤0.050% ≤0.050%
Silicon ≤0.40% ≤0.30% ≤0.30%

Mechanical Properties

Property EN8 EN3B EN1A
Yield strength (MPa) 360 275 250
Ultimate strength (MPa) 600–750 410–510 350–450
Elongation 20% 23% 30%
Hardness (HB) 160–190 120–180 130–170

Physical Properties

Density
7.85 g/cm³
Melting point
1425–1540°C
Thermal conductivity
~50 W/m·K
Electrical conductivity
~106 S/m
Specific heat
0.49 J/g·K

Export Countries

Oman UAE Saudi Arabia Qatar

Price Information

Mild steel welded rings price

Looking for the latest mild steel ring price list? Send your inquiry and we will respond with availability and a competitive quote.

Ready Stock

  • Large diameter seamless rings
  • Custom forged rings
  • Hot rolled rings
  • Construction machinery rings

Delivery Time

Country Days
Singapore 8
Malaysia 7
Indonesia 7
Vietnam 14
Japan 7
Sri Lanka 5

Typical lead times (at a glance)

Sri Lanka 5 days
Malaysia 7 days
Indonesia 7 days
Japan 7 days
Singapore 8 days
Vietnam 14 days