Manufacturee of heat treated, high carbon steel and alloy strip steel.
Wood band saws
1. Mechanical properties combining high strength and toughness which minimize the risk of cracks in connection with spring or swage setting
2. Good Flatness and excellent straightness
3. Straight, smooth edges safe to handle
The strip steel is supplied in three different conditions: BRIGHT POLISHED, SUPER BLUE, which is already well known in the wood industries.
Form of supply
Strip steel in coils.
Finishes
Square, Round, smooth edges
Maximum unflatness across the strip width.
Quality policy for strip steel
We define quality as conformance to requirements.
Our Quality Policy is:
- To meet the customer's expectations and requirements for every order regarding supplied material and all related services.
- Not to allow any exceptions from requirements and promises (Zero Defect Principle).
- That all of us shall fully understand the requirements for our own work, enabling us together to supply products and services with zero defects and on time to both internal and external customers.
- To work to attain a continuous improvement.
GNI: band saw strip steel
Of the utmost importance for band saw blades, is superior, long-lasting cutting quality. Also required are sufficient toughness, outstanding flatness, and straightness to make saw doctoring quick and easy. GNI band saw strip steel, with its proud our challenge of new frontier mind, fully meets these requirements.
The long-lasting superior cutting quality of GNI band saw strip steel is due to its high abrasion resistance, which is in proportion to tooth hardness. Excessive hardness, however, results in cracking, less toughness, and difficulty in swaging. GNI band saw strip steel is heat-treated to reconcile these conflicting requirements and provides appropriate toughness and hardness.
In addition, band saw strip steel is required to have high fatigue strength and impact resistance because they are subjected to high speeds and long periods of rotation. Proper heat treatment is vital to these qualities as well as to additional requirements including the control of impurities, segregation which can arise during the steel making process, and uniform grinding free from surface defects.
Deleterious inclusions and a high degree of segregation may cause lowering of saw quality. GNI band saw strip steel is made of steel with high purity and uniform structure under GNI's superior steel making technology, and exhibits high fatigue strength and durability.
The reliability of GNI band saw strip steel is the result of advanced quality of steel making up to the fine inspection by GNI, the world's leading special strip steel manufacturer.
Strip steel grades
Used for GNI band saw strip steel includes the two grades shown below; impurities are strictly controlled and the occurrence of non-metallic inclusions is kept to the minimum.
Nickel contents added, however, varies according to sawing conditions; nickel may be necessary in a very small amount. Or it may not be necessary at all. GNI band saw strip steel is available in a variety of steel grades to meet your needs.
Dimensional accuracy and shape
Our high-standard rolling and exclusive heat treatment technologies provide you with excellent thickness accuracy and constantly even shape (flatness) created under a process through quality control system as well as reliability and satisfaction.
Finishes
Edges: Square
Surface: Bright Polished
Process system
Cold strip steel Heat treatment Edge grinding Surface polishing Inspection Packing Outlet.
Hardness conversion table:
| HV | HRC | HV | HRC | HV | HRC |
| 940 | 68.0 | 540 | 51.7 | 280 | 27.1 |
| 920 | 67.5 | 530 | 51.1 | 272 | 26.4 |
| 900 | 67.0 | 520 | 50.5 | 270 | 25.6 |
| 880 | 66.4 | 510 | 49.8 | 265 | 24.8 |
| 860 | 65.9 | 500 | 49.1 | 260 | 24.0 |
| 840 | 65.3 | 490 | 48.4 | 255 | 23.1 |
| 820 | 64.7 | 480 | 47.7 | 250 | 22.2 |
| 800 | 64.0 | 470 | 46.9 | 245 | 21.3 |
| 780 | 63.3 | 460 | 46.1 | 240 | 20.3 |
| 760 | 62.5 | 450 | 45.3 | 230 | 18.0 |
| 740 | 61.8 | 440 | 44.5 | 220 | 15.7 |
| 720 | 61.0 | 430 | 43.6 | 210 | 13.4 |
| 700 | 60.1 | 420 | 42.7 | 200 | 11.0 |
| 690 | 59.7 | 410 | 41.8 | 190 | 8.5 |
| 680 | 59.2 | 400 | 40.8 | 180 | 6.0 |
| 670 | 58.8 | 390 | 39.8 | 170 | 3.0 |
| 660 | 58.3 | 380 | 38.8 | 160 | 0.0 |
| 650 | 57.8 | 370 | 37.7 | 150 | |
| 640 | 57.3 | 360 | 36.6 | 140 | |
| 630 | 56.8 | 350 | 35.5 | 130 | |
| 620 | 56.3 | 340 | 34.4 | 120 | |
| 610 | 55.7 | 330 | 33.3 | 110 | |
| 600 | 55.2 | 320 | 32.2 | 100 | |
| 590 | 54.7 | 310 | 31.0 | 90 | |
| 580 | 54.1 | 300 | 29.8 | 80 | |
| 570 | 53.6 | 295 | 29.2 | 70 | |
| 560 | 53.0 | 290 | 28.5 | ||
| 550 | 52.3 | 285 | 27.8 |
