Melt Extract Stainless Steel Fiber

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Melt Extract Stainless Steel Fiber

By increasing refractory lifetimes steel fiber refractory reinforcement offers the end user a reduction in downtime and substantial savings in materials and labor costs. Melt Extract stainless fibers are fully annealed and therefore are more pliable and ductile. This is of particular benefit during the mixing cycle and when the refractory composite is installed. These pliable fibers are not only more user-friendly than the stiff "needle-like" cut fibers, but  also have  better flow characteristics. Dispersion is further aided by the optimum Aspect Ratio design guaranteeing rapid fiber separation during the mixing phase.
We provide various types:


The normal diameter of stainless steel fiber is 0.3mm~0.7mm with a length of 20~60mm. To avoid agglomeration during stirring, the ratio of the length to the diameter shoud be controlled in the range of 30~80. It should be noted that if a process of jet spray is applied, stainless steel fiber of a shorter length <25mm should be selected, otherwise the spray jet shall be blocked. For special applications other lengths and diameters are also available.

Cost savings are the main reason for adding stainless steel fibers. In all areas of high thermal and mechanical shock, fibers will at least double refractory life. Fiber costs up to 50% lower than comparable products. Our low cost  but  high performance melt extract steel fibers provide the quickest payback. Our quality product costs substantially less because we produce our molten steel and spun fiber on-line in one fully integrated manufacturing plant. We are able to keep fiber manufacturing costs to a minimum, which is reflected in the very competitive prices.

We has developed melt extract steel fiber which features thermal shock resistance, steep thermal gradients resistance and mechanical shock resistance, minimizing damage and decaying failure caused by cracking. By increasing refractory lifetimes steel fiber refractory reinforcement offers the end user a reduction in downtime and substantial savings in materials and labor costs.

Production:

Melt Extract stainless steel fibers are spun directly from the melt using the company's advanced Melt Extraction (ME) and Melt Overflow (MO) processes. Rapid cooling of the fiber during manufacture (equivalent to 50,000 per second) "freezes" the metallurgical structure, capturing it in an optimum state to resist high temperature corrosion - a state which is impossible for conventionally cast steel to match.

The processing maximizes the effective distribution of the primary nickel and/or chromium alloying elements throughout the fiber while simultaneously minimizing grain size. When coupled with our skill of blending non-standard levels of performance-enhancing key trace elements to the melt, a unique range of dedicated refractory fiber alloys have been produced which provide outstanding oxidation resistance and unmatched performance at elevated temperature.

Steel Fiber Size:
The normal diameter of stainless steel fiber is 0.3mm~0.7mm with a length of 20~60mm. To avoid agglomeration during sirring, the ratio of the length to the diameter shoud be controlled in the range of 30~80. It should be noted that if a process of jet spray is applied, stainless steel fiber of a shorter length <25mm should be selected, otherwise the spray jet shall be blocked. For special applications other lengths and diameters are also available.
Chemical composition, specifications, packing.

TypeChemical Composition(%)SpecificationsPacking
CSiMnNiCr
304≤0.15≤1.5≤1.58-1217-200.3×1×25&0.3×1×3520Kg(CTN、Bag)
310≤0.2≤1.5≤1.519-2224-27
330≤0.2≤1.5≤1.533-3714-17
446≤0.2≤1.5≤1.5≤0.724-27
430≤0.2≤1.5≤1.5≤0.717-19


Steel Fiber Grade:

The grades of steel fiber should be suitably selected based on the temperature and atmosphere.
Physical, Mechanical and corrosion resistant properties of stainless steel fiber

304

310

330

446

430

Melting Point Range

1400-1425

1400-1450

1400-1425

1425-1510

1425-1510

Elastic modulus at 870℃
104MPa

12.66

12.66

13.71

9.84

8.44

Tensile strength at 870℃
MPa

127

155

197

54

48

Thermal expansion coefficient at
870℃  10-6 /

20.16

18.58

17.64

13.14

13.68

Heat conductance at 500℃
W/m.k

21.5

18.7

21.6

24.4

26.3

Specific gravity at romm temperature, g/cm³

8.0

8.0

8.0

7.5

7.8

Loss of weight (%) after 1000 hours of circulating oxidization at 982℃(%)

70(100h)

13

18

4

70(100h)

*Violent circulating state in air
Temperature of oxidation,℃,continuous state

870

1035

1035

1175

870

982

1050

1150

1095

815

Corrosion in H2S,Mil/yr

200

100

/

100

200

Recommended max operating temperature when it is used in SO2℃

800

1050

/

1025

800

Corrosion in natural gas at 815℃
Mil/yr

3

4

12

Corrosion in coking coal gas at 982℃

225

25

75

14

236

Nitrogenization in anhydrous ammonia at 525℃
Mil/yr

80

55

20

175

<304#
>446#

Corrosion by CH2  at 454℃, Mil/yr

4.8

2.3

8.7

21.9

Carbon pick-up of alloy % with solids carbonized at 982℃ for 24 hours and 40 times of circulations, %

1.40

0.02

0.08

0.07

1.03


Steel Fiber Packing:
Steel fiber should be first spread evenly into the refractory materials, and mixed in a dry state and then in a wet state. To avoid the difficulty of installation due to agglomeration, a packing of an orderly array in paper boxes should be first considered.
PACKAGE: ORDERLY PACKING, 20KG/CARTON BOX OR BAG, SIZES CAN BE MADE ACCORDING TO CUSTOMERS' REQUIREMENT.
DELIVERY TIME: IN 20 DAYS AFTER PAYMENT.

ORDERLY PACKING

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Steel products contribute to the infrastructure development of a country in multiple ways. Firstly, steel is a versatile and durable material that is used in the construction of bridges, buildings, roads, and other critical infrastructure. Its strength and resilience make it ideal for withstanding heavy loads and extreme weather conditions, ensuring the longevity and safety of these structures. Secondly, steel products enable the construction of taller and more efficient buildings, allowing for the optimization of limited land resources in urban areas. This vertical growth helps accommodate increasing populations and promotes sustainable urban development. Additionally, steel is also used in the manufacturing of transportation infrastructure such as railways, airports, and ports. Its high strength-to-weight ratio makes it an ideal material for constructing bridges and tunnels, ensuring smooth and reliable transportation networks. Lastly, the steel industry itself plays a significant role in a country's economy by generating employment opportunities, attracting investments, and fostering technological advancements. The production and use of steel products in infrastructure development create a ripple effect, stimulating various sectors and contributing to overall economic growth. In summary, steel products contribute to the infrastructure development of a country by providing strong and durable materials for construction, enabling vertical growth, enhancing transportation networks, and driving economic progress.
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Steel products are used extensively in the manufacturing of machinery due to their strength, durability, and versatility. Steel is often used to create the structural framework of machinery, as well as various components such as gears, shafts, and bearings. Additionally, steel is used in the manufacturing of machine tools and cutting equipment, ensuring precision and reliability. Overall, steel products play a crucial role in the machinery industry, providing the necessary strength and reliability needed for efficient and effective machine operations.
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Some of the different types of steel products used in the manufacturing of consumer goods include steel sheets, steel coils, steel tubes, steel bars, and steel wires. These products are commonly utilized in various industries such as automotive, appliances, construction, and furniture manufacturing, among others.
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Steel products are used extensively in the construction of public transportation systems due to their strength, durability, and versatility. Steel is commonly utilized for the structural framework of bridges, tunnels, railway tracks, and elevated platforms, ensuring the infrastructure can withstand heavy loads and constant use. Additionally, steel is used in the manufacturing of train and subway cars, providing a safe and reliable means of transportation for the public.
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Steel is a highly durable and strong material that offers significant advantages compared to materials like aluminum or wood. Its superior strength allows for the construction of larger and sturdier structures, making it ideal for applications where structural integrity is crucial, such as in high-rise buildings and bridges. Additionally, steel's resistance to corrosion and fire makes it a safer and more long-lasting option. Compared to aluminum, steel is generally less expensive and has a higher weight-bearing capacity. While wood has its own unique aesthetic appeal and is renewable, steel surpasses it in terms of strength, durability, and resistance to environmental factors.
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