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ZTW100.25 is a low density sponge iron powder with low impurity content and highly consistent chemical composition and particle size distribution. This powder is suitable for various welding applications, including coated electrodes, flux cored wires, and metal cored wires.
While ZTW100.25 can be used as the main iron powder in flux cored wires, it also significantly enhances welding performance when mixed in small to medium proportions with other LWPM grades in coated electrodes and metal cored wires. Regardless of the type of filler metal used, ZTW100.25 improves welding stability, reduces spatter, and increases production efficiency.
In summary, ZTW100.25, with its excellent purity and consistent physical properties, is an ideal choice for enhancing welding quality and production efficiency.
Powder grades for welding applications:
As a key component in the production of a wide range of welding consumables, the characteristics of iron powders often have a direct influence on both welding properties and final weld metal quality. Our sponge and atomized gradesare distinguished by particle size distribution, chemical composition, particle morphology and apparent density. Choosing iron powders with suitable characteristics for a given application will result in enhanced efficiency and overall welding performance.
Benefits:
• Wide range of iron powders developed for welding applications
• Narrow specifications
• Consistent chemical and physical properties
• Low level of impurities
• Efficient logistics solutions and smart packaging
Specification of Sponge Iron powder
ZTW100.25
| Chemical Properties（%） | Unit | Specification | |
| Min | Max | ||
| C | % | 0.05 | |
| Si | % | 0.12 | |
| Mn | % | 0.20 | |
| P | % | 0.009 | |
| S | % | 0.009 | |
| V | % | 0.10 | |
| H2-Loss | % | 0.55 | |
| Fe | % | 99 | |
| Physical Properties | |||
| Apparent density | g/cm3 | 2.40 | 2.60 |
| Particle size distribution（%） | |||
| ＋200um(US mesh 60) | % | 0 | |
| ＋150um(US mesh 100) | % | 10 | |
| ＋75um(US mesh 200) | % | 40 | 80 |
| ＋45um(US mesh 325) | % | 70 | 95 |
Specification of other iron powder for welding
Grade | Chemical composition/% | Apparent density g/cmᶟ | Particle size distribution/% | ||||||||||||||
| C | Si | Mn | P | S | V | H2-Loss | Fe | ||||||||||
Sponge iron powder | ZTW40.29 | ≤ 0.06 | ≤ 0.12 | ≤ 0.20 | ≤ 0.005 | ≤ 0.010 | - | ≤ 0.80 | ≥ 98 | 2.75-3.00 | ＋500um | ＋355um | ＋250um | ＋150um | ＋75um | ||
| 0 | ≤5 | 2-20 | 40-70 | 90-100 | |||||||||||||
ZTW40.37 | ≤ 0.06 | ≤ 0.12 | ≤ 0.20 | ≤ 0.005 | ≤ 0.010 | ≤ 0.10 | ≤ 0.80 | ≥ 98 | 3.60-3.80 | ＋500um | ＋355um | ＋250um | ＋150um | ＋75um | |||
| 0 | 0-12 | 10-40 | 50-80 | 85-100 | |||||||||||||
ZTW100B | ≤ 0.07 | ≤ 0.25 | ≤ 0.20 | ≤ 0.015 | ≤ 0.015 | B | - | - | ＋150um | 75-150um | 45-75um | -45um | |||||
| 0.90-1.10 | 5 | Bal. | Bal. | 5-25 | |||||||||||||
Atomized iron powder | LAP40.30 | ≤ 0.01 | ≤ 0.10 | ≤ 0.15 | ≤ 0.02 | ≤ 0.012 | - | 0.50≤ | - | 2.80-3.20 | ＋425um | 100-425 um | -100um | ||||
| ≤2.0 | ≥70.0 | ≤10.0 | |||||||||||||||
LAP40.37 | ≤ 0.05 | ≤ 0.08 | ≤ 0.15 | ≤ 0.015 | ≤ 0.015 | - | ≤ 0.50 | - | 3.60-3.80 | ＋425um | 100-425 um | 63-150 um | -63 um | ||||
| ≤3 | ≥70.0 | 5-25 | ≤5 | ||||||||||||||
LAP 100.29 | ≤ 0.01 | ≤ 0.04 | ≤ 0.14 | ≤ 0.015 | ≤ 0.015 | - | ≤ 0.20 | ≥ 99.2 | Apparent density g/cmᶟ | Flow rate s/50g | Green density600Mpa g/cmᶟ | Particle size distribution/% | |||||
| 180-212um | 150-180um | 45-150 um | - 45 um | ||||||||||||||
| 2.95-3.10 | ≤28 | ≥7.13 | ≤1 | ≤10 | - | 15-30 | |||||||||||
Product Packing
1000kg per big flexbag and 25kg per small bag packed into one big bag.
Application
Welding electrodes, Welding wire,Cored wire,Surface coating,Foundry additive,Hardfacing,Alloy steel manufacturing.
ZTW100.25 is a low density sponge iron powder with low impurity content and highly consistent chemical composition and particle size distribution. This powder is suitable for various welding applications, including coated electrodes, flux cored wires, and metal cored wires.
While ZTW100.25 can be used as the main iron powder in flux cored wires, it also significantly enhances welding performance when mixed in small to medium proportions with other LWPM grades in coated electrodes and metal cored wires. Regardless of the type of filler metal used, ZTW100.25 improves welding stability, reduces spatter, and increases production efficiency.
In summary, ZTW100.25, with its excellent purity and consistent physical properties, is an ideal choice for enhancing welding quality and production efficiency.
Powder grades for welding applications:
As a key component in the production of a wide range of welding consumables, the characteristics of iron powders often have a direct influence on both welding properties and final weld metal quality. Our sponge and atomized gradesare distinguished by particle size distribution, chemical composition, particle morphology and apparent density. Choosing iron powders with suitable characteristics for a given application will result in enhanced efficiency and overall welding performance.
Benefits:
• Wide range of iron powders developed for welding applications
• Narrow specifications
• Consistent chemical and physical properties
• Low level of impurities
• Efficient logistics solutions and smart packaging
Specification of Sponge Iron powder
ZTW100.25
| Chemical Properties（%） | Unit | Specification | |
| Min | Max | ||
| C | % | 0.05 | |
| Si | % | 0.12 | |
| Mn | % | 0.20 | |
| P | % | 0.009 | |
| S | % | 0.009 | |
| V | % | 0.10 | |
| H2-Loss | % | 0.55 | |
| Fe | % | 99 | |
| Physical Properties | |||
| Apparent density | g/cm3 | 2.40 | 2.60 |
| Particle size distribution（%） | |||
| ＋200um(US mesh 60) | % | 0 | |
| ＋150um(US mesh 100) | % | 10 | |
| ＋75um(US mesh 200) | % | 40 | 80 |
| ＋45um(US mesh 325) | % | 70 | 95 |
Specification of other iron powder for welding
Grade | Chemical composition/% | Apparent density g/cmᶟ | Particle size distribution/% | ||||||||||||||
| C | Si | Mn | P | S | V | H2-Loss | Fe | ||||||||||
Sponge iron powder | ZTW40.29 | ≤ 0.06 | ≤ 0.12 | ≤ 0.20 | ≤ 0.005 | ≤ 0.010 | - | ≤ 0.80 | ≥ 98 | 2.75-3.00 | ＋500um | ＋355um | ＋250um | ＋150um | ＋75um | ||
| 0 | ≤5 | 2-20 | 40-70 | 90-100 | |||||||||||||
ZTW40.37 | ≤ 0.06 | ≤ 0.12 | ≤ 0.20 | ≤ 0.005 | ≤ 0.010 | ≤ 0.10 | ≤ 0.80 | ≥ 98 | 3.60-3.80 | ＋500um | ＋355um | ＋250um | ＋150um | ＋75um | |||
| 0 | 0-12 | 10-40 | 50-80 | 85-100 | |||||||||||||
ZTW100B | ≤ 0.07 | ≤ 0.25 | ≤ 0.20 | ≤ 0.015 | ≤ 0.015 | B | - | - | ＋150um | 75-150um | 45-75um | -45um | |||||
| 0.90-1.10 | 5 | Bal. | Bal. | 5-25 | |||||||||||||
Atomized iron powder | LAP40.30 | ≤ 0.01 | ≤ 0.10 | ≤ 0.15 | ≤ 0.02 | ≤ 0.012 | - | 0.50≤ | - | 2.80-3.20 | ＋425um | 100-425 um | -100um | ||||
| ≤2.0 | ≥70.0 | ≤10.0 | |||||||||||||||
LAP40.37 | ≤ 0.05 | ≤ 0.08 | ≤ 0.15 | ≤ 0.015 | ≤ 0.015 | - | ≤ 0.50 | - | 3.60-3.80 | ＋425um | 100-425 um | 63-150 um | -63 um | ||||
| ≤3 | ≥70.0 | 5-25 | ≤5 | ||||||||||||||
LAP 100.29 | ≤ 0.01 | ≤ 0.04 | ≤ 0.14 | ≤ 0.015 | ≤ 0.015 | - | ≤ 0.20 | ≥ 99.2 | Apparent density g/cmᶟ | Flow rate s/50g | Green density600Mpa g/cmᶟ | Particle size distribution/% | |||||
| 180-212um | 150-180um | 45-150 um | - 45 um | ||||||||||||||
| 2.95-3.10 | ≤28 | ≥7.13 | ≤1 | ≤10 | - | 15-30 | |||||||||||
Product Packing
1000kg per big flexbag and 25kg per small bag packed into one big bag.
Application
Welding electrodes, Welding wire,Cored wire,Surface coating,Foundry additive,Hardfacing,Alloy steel manufacturing.
