Spring Steel Coil Dealer and Supplier
Best Butt Weld Fittings Manufacturer in India since 1971.
Spring steel refers to steel, ordinarily of the high carbon or alloy type, utilized within the manufacture of springs. The steel is handled by cold drawing, cold rolling, or heat treating to deliver it the flexible properties and yield quality required in springs. Spring steel is frequently utilized since of its high yield qualities, resistance to deformation, and its capacity to return to its unique shape. Our spring steel and spring steel strips are accessible as heat-treatable annealed, which permits the shaping to happen earlier to the heat treatment, or heat treated, where the steel is already solidified, tempered, or sprung. Our stock of annealed spring steel can be effectively shaped, tempered, heat treated, blanked or formed.
Spring Steel Coil Specification
Blue Tempered And Polished Spring Steel
- Grades: C1074/75, C1095
- Thickness in Stock: .002″ through .125″
- Widths in Stock: .125″ through 24″
Scaleless Tempered Spring Steel
- Grades: C1074/75
- Thickness in Stock: .008″ through .125″
- Widths in Stock: .125″ through 24″
Cold Rolled High Carbon Annealed Spring Steel
- Grades: C1050, C1074/75, C1095
- Thickness in Stock: .003″ through .250″
- Widths in Stock: .125″ through 60″
Ready Stock Of Spring Steel Boning Coils, 1095 Blue Tempered Spring Steel Coils, Stainless Steel Spring Coil In Mumbai, India
Unique Properties Of Spring Steel
We carries annealed spring steel in three varieties, which are distinguished based on their carbon content:
- AISI 1050 has the lowest carbon content, making it easily formable. It also can be heat treated in order to increase hardness.
- AISI 1074 and 1075 have a medium carbon content that’s been spheroidized to increase its formability, and can be heat treated.
AISI 1095 has the highest carbon content of the spring steels we carry. It can be heat treated, and also has the highest elasticity and fatigue values.
Spring Steel Strip Coil Value Added Services
- Cladding
- Heat Treatment
- Annealed
- Pickling, Polish
- Rolling
- Cutting
- Bending
- Forging
- Minor Fabrication Etc.
Spring Steel Grades
12R11 | (S30100) | (301) | 1.4310 | 800-1900 | 2-345 | 0.015-3 |
11R51 | (S30100) | (301) | 1.4310 | 1700-2050 | 2-345 | 0.015- 1.5 |
13RM19 | – | – | 1.4369 | 850-1600 | 2-345 | 0.015-3 |
3R12* | S30403 | 304L | 1.4306 | 600-1300 | 2-325 | 0.015-2 |
2RK65 HV | N08904 | 904LVM | 1.4539 | * | * | * |
Austenitic stainless steels | ||||||
Grade | UNS | ASTM | EN | Tensile strength | Width | Thickness |
SAF 2507 | S32750 | – | 1.4410 | 900-1600 | 2-300 | 0.015-3.5 |
Springflex | UNS S32205, S31803 | – | 1.4462 | 1100-2200 (160-319) | 2-300 (0.079 – 12) | 0.03 – 3.51 (0.0012 – 0.14) |
Duplex stainless steels | ||||||
Grade | UNS | ASTM | EN | Tensile strength | Width | Thickness |
9RU10 | S17700 | 631 | 1.4568 | 1200-1700 | 2-360 | 0.015-3 |
1RK95 | S45500 | – | – | 1050-1500 | 10-330 | 1-3.5 |
Nanoflex | – | – | – | 950-1850 | 2-330 | 0.015-2 |
Sanicro 75X | N07750 | – | – | 750- 1350 | 2-200 | 0.015-4 |
Precipitation hardening steels | ||||||
Grade | UNS | ASTM | EN | Tensile strength | Width | Thickness |
Sanicro 75X | N07750 | – | – | 750- 1350 | 2-200 | 0.015-4 |
Wire dia (in mm ) |
| Approx. Coil weight (kgs.) | |||||
0.28 to 0.34 | 175 | 360 | 3 to 10 | ||||
0.35 to 0.36 | 170 | 400 | 10 to 50 | ||||
0.78 to 1.35 | 250 | 430 | 70 to 80 | ||||
1.40 to 2.80 | 550 | 700 | 100 to 180 | ||||
2.85 to 5.00 | 700 | 900 | 100 to 200 | ||||
Spring Steel Coil Properties
The tables show the properties of our spring steel grades compared to the normally used ASTM 301. The more plus signs, the better the properties:
Property | + | ++ | +++ | ++++ | +++++ |
Fatigue strength | – | – | 12R11 1RK95 | 9RU10 | 11R51 |
Formability | – | – | 9RU10 | 1RK95 | Nanoflex |
Non-magnetic | – | – | – | – | 13RM19 |
Tensile strength | – | – | 12R11 | – | 11R51 |
Corrosion resistance | – | 12R11 9RU10 | 3R12 Nanoflex 11R51 | Bioline 316LVM 2RK65 HV | SAF 2507 Sanicro 75X |
Relaxation resistance | – | 11R51 | 9RU10 | 1RK95 | Nanoflex |
Elevated temperature | – | – | 11R51 | Nanoflex 1RK95 9RU10 |
Spring Steel Coil Sizes
Thickness | Width | Thickness tolerance, mm +/- | |||
mm | mm | T1 | T2 | T3 | T4 |
<0.025 | -250 | 0.003 | 0.002 | 0.0015 | 0.001 |
0.025- <0.04 | -250 | 0.004 | 0.003 | 0.002 | 0.0015 |
0.04- <0.063 | -250 | 0.005 | 0.004 | 0.003 | 0.002 |
0.063- <0.1 | -250 | 0.006 | 0.005 | 0.004 | 0.003 |
0.1- <0.125 | -250 | 0.007 | 0.005 | 0.004 | 0.003 |
0.125- <0.16 | -250 | 0.009 | 0.006 | 0.005 | 0.004 |
0.16- <0.2 | -250 | 0.01 | 0.007 | 0.005 | 0.004 |
0.2- <0.25 | -250 | 0.011 | 0.008 | 0.006 | 0.004 |
0.25- <0.315 | -250 | 0.013 | 0.009 | 0.007 | 0.005 |
0.315- <0.4 | -250 | 0.015 | 0.011 | 0.008 | 0.006 |
0.4- <0.5 | -250 | 0.017 | 0.012 | 0.009 | 0.006 |
0.5- <0.63 | -250 | 0.020 | 0.014 | 0.010 | 0.007 |
0.63- <0.8 | -250 | 0.023 | 0.017 | 0.012 | 0.008 |
0.8- <1 | -250 | 0.027 | 0.019 | 0.013 | 0.009 |
1- <1.25 | -250 | 0.034 | 0.024 | 0.017 | 0.012 |
1.25- <1.6 | -250 | 0.039 | 0.028 | 0.020 | 0.014 |
1.6- <2 | -250 | 0.046 | 0.033 | 0.023 | 0.017 |
2- <2.5 | -250 | 0.050 | 0.035 | 0.025 | 0.017 |
2.5- <3.15 | -250 | 0.056 | 0.040 | 0.028 | 0.020 |
3.15- 5 | -250 | 0.063 | 0.045 | 0.032 | 0.022 |
Thickness | Width | Thickness tolerance, mm +/- | |||
mm | mm | B1 | B2 | B3 | B4 |
<0.25 | – <20 | 0.07 | 0.05 | 0.03 | 0.02 |
0.25- <0.50 | – <20 | 0.10 | 0.07 | 0.05 | 0.03 |
0.50- <1.00 | – <20 | 0.15 | 0.11 | 0.07 | 0.05 |
1.00- <1.60 | – <20 | 0.20 | 0.15 | 0.10 | 0.07 |
1.60- <2.00 | – <20 | 0.25 | 0.20 | 0.15 | 0.10 |
2.00- <2.50 | – <20 | 0.35 | 0.25 | 0.20 | 0.15 |
2.50- <4.00 | – <20 | – | – | – | – |
Thickness | Width | Thickness tolerance, in. +/- | |||
in. | in. | T1 | T2 | T3 | T4 |
-<.0010 | -9.8 | .00012 | .00008 | .00006 | .00004 |
.0010- <.0016 | -9.8 | .00016 | .00012 | .00008 | .00006 |
.0016- <.0025 | -9.8 | .00020 | .00016 | .00012 | .00008 |
.0025- <.0039 | -9.8 | .00024 | .00020 | .00016 | .00012 |
.0039- <.0049 | -9.8 | .00028 | .00020 | .00016 | .00012 |
.0049- <.0063 | -9.8 | .00035 | .00024 | .00020 | .00016 |
.0063- <.0079 | -9.8 | .00039 | .00028 | .00020 | .00016 |
.0079- <.0098 | -9.8 | .00043 | .00031 | .00024 | .00016 |
.0098- <.0124 | -9.8 | .00051 | .00035 | .00028 | .00020 |
.0124- <.0157 | -9.8 | .00059 | .00043 | .00031 | .00024 |
.0157- <.0197 | -9.8 | .00067 | .00047 | .00035 | .00024 |
.0197- <.0248 | -9.8 | .00079 | .00055 | .00039 | .00028 |
.0248- <.0315 | -9.8 | .00091 | .00067 | .00047 | .00031 |
.0315- <.0394 | -9.8 | .00106 | .00075 | .00051 | .00035 |
.0394- <.0492 | -9.8 | .00134 | .00094 | .00067 | .00047 |
.0492- <.0630 | -9.8 | .00153 | .00110 | .00079 | .00055 |
.0630- <.0787 | -9.8 | .00181 | .00130 | .00091 | .00067 |
.0787- <.0984 | -9.8 | .00197 | .00138 | .00098 | .00067 |
.0984- <1.240 | -9.8 | .00220 | .00157 | .00110 | .00079 |
1.240- <1.969 | -9.8 | .00248 | .00177 | .00126 | .00087 |
Thickness | Width | Thickness tolerance, in. +/- | |||
in. | in. | B1 | B2 | B3 | B4 |
– <.0098 | – <.79 | .0028 | .0020 | .0012 | .0008 |
.0098- <.0197 | – <.79 | .0039 | .0028 | .0020 | .0012 |
.0197- <.0394 | – <.79 | .0059 | .0043 | .0028 | .0020 |
.0394- <.0630 | – <.79 | .0079 | .0059 | .0039 | .0028 |
.0630- <.0787 | – <.79 | .0098 | .0079 | .0059 | .0039 |
.0787- <.0984 | – <.79 | .0138 | .0098 | .0079 | .0059 |
.0984- <.1575 | – <.79 | – | – | – | – |
Flat Spring Steel Coil Standard Tensile Strength
■ = stock standard
□ = available combination
Thickness | 12R11 | 11R51 | 9RU10 | ||||||
mm | Tensile strength (MPa) | Tensile strength (MPa) | Tensile strength (MPa) | ||||||
| 1300 | 1500 | 1700 | 1700 | 1900 | 2050 | 1300 | 1500 | 1700 |
0.010 | – | □ | – | – | – | – | – | – | – |
0.015 | – | □ | □ | □ | □ | □ | – | – | □ |
0.03 | □ | □ | □ | □ | □ | □ | □ | □ | □ |
0.04 | □ | □ | □ | □ | □ | □ | □ | □ | □ |
0.05 | □ | □ | □ | □ | □ | □ | □ | □ | □ |
0.08 | □ | □ | □ | □ | □ | □ | □ | □ | □ |
0.10 | □ | ■ | □ | □ | □ | ■ | □ | □ | □ |
0.15 | □ | ■ | ■ | □ | □ | ■ | □ | □ | □ |
0.20 | □ | ■ | ■ | □ | ■ | ■ | □ | □ | □ |
0.25 | □ | ■ | □ | □ | ■ | □ | □ | □ | □ |
0.30 | □ | ■ | □ | ■ | ■ | ■ | □ | □ | □ |
0.40 | ■ | ■ | ■ | □ | ■ | □ | □ | □ | □ |
0.50 | □ | ■ | ■ | □ | ■ | – | □ | □ | – |
0.60 | □ | ■ | □ | □ | ■ | – | □ | □ | – |
0.70 | □ | ■ | □ | □ | ■ | – | □ | □ | – |
0.80 | ■ | □ | □ | □ | ■ | – | □ | ■ | – |
0.90 | □ | □ | ■ | □ | – | – | □ | □ | – |
1.0 | □ | ■ | □ | □ | – | – | □ | □ | – |
1.5 | □ | ■ | □ | □ | – | – | □ | □ | – |
2.0 | □ | □ | – | – | – | – | ■ | – | – |
2.5 | □ | – | – | – | – | – | □ | – | – |
3.0 | – | – | – | – | – | – | ■ | – | – |
Typical Application Of Stainless Steel Spring Coil
- Vehicle Coil Springs
- Spring Clamps
- Antennas
- S-Tines
- Lock Picks
- Clock Hands
Stainless Steel Checker Plate Origin & Manufacturers
Origin: Indian Origin, European Origin, Japanese Origin, US Origin, Korea Origin, Thailand Origin, Taiwan Origin.
Frequently Asked Questions
Most frequent questions and answers
What is a spring steel coil?
The term “spring steel” refers to a broad spectrum of steel used in the production of various goods, such as springs, saw blades, and swords. These steels typically have a very high yield strength and are low-alloy manganese, medium- or high-carbon steels.
What is spring steel used for?
It is a typical material used to create products including springs, washers, saw blades, lock picks, antennae, and scrapers. Additionally, it’s frequently used to make coil springs for vehicles, landing gear for light aircraft, and components for lawn mowers.
Is spring steel stronger than mild steel?
“Spring steel” is a catch-all phrase for steel that has undergone processing to obtain a very high yield strength, typically but not necessarily through cold working. Because of this, it will be able to resist “taking a set” when you load it heavily—or at least far more so than mild steel.
What distinguishes spring steel from stainless steel?
Stainless steel, a material for general-purpose spring wire that can be cold drawn, is heat and corrosion resistant, magnetic, and spring-tempered. Compared to alloy or plain steels, alloy steels with 10% or more chromium offer higher corrosion resistance. Rainfall and austenitic hardening are frequently used in springs.
What kind of steel is used in coil springs?
Steel that is high in carbon
The most often used form of steel for the production of coil springs is high carbon steel. Available in 1045 and 1095 alloys, it is robust, long-lasting, and affordable.
