Platinum Crucible
MetalsTek Engineering is a leading manufacturer and supplier of Platinum Crucibles Molds and Boats. We can produce high-quality Platinum Crucibles Molds and Boats with short lead times and competitive prices. Tailored Platinum Crucibles are available, including replacements for Perl-X®, Katanax®, Claisse®, Vulcan, Phoenix, Herzog, Linn®, Leco®, and more.
Product List of Platinum and Platinum Alloy Crucibles, Molds and Boats
Standard Platinum Crucible

Material: Pt, PtAu, PtIr, PtRh
Composition: PtAu5, PtIr(5%~25%), PtRh(10%~30%)
Purity: Pt ≥ 99.95%, Au ≥ 99.99%, Ir ≥ 99.99%, Rh ≥ 99.99%
Capacity: 5mL~300mL, or Customized
![]() ![]() | Capacity (mL) | A1 (mm) | D (mm) | B (mm) | Weight (g) |
5 | 20 | 14 | 21 | 8 | |
10 | 24 | 15 | 27 | 12 | |
15 | 26 | 16 | 32 | 15 | |
20 | 32 | 19 | 34 | 20 | |
25 | 34 | 20 | 38 | 25 | |
30 | 36 | 23 | 39 | 30 | |
35 | 36 | 25 | 42 | 35 | |
40 | 41 | 25 | 45 | 40 | |
50 | 44 | 27 | 47 | 50 | |
75 | 49 | 32 | 53 | 75 | |
80 | 50 | 32 | 55 | 80 | |
100 | 60 | 38 | 55 | 100 | |
120 | 60 | 38 | 60 | 120 | |
200 | 82 | 50 | 82 | 200 | |
250 | 75 | 52 | 90 | 250 |
Micro Platinum Crucibles & Lids

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Capacity: 1mL~10mL, or Customized
Micro Pt Crucible | Capacity (mL) | A1 (mm) | D (mm) | B (mm) |
![]() | 1 | 12 | 7.2 | 13 |
3 | 17 | 10 | 19 | |
5 | 20.5 | 12 | 22 | |
10 | 26 | 15.5 | 28 |
Platinum Crucible Low and Wide Base

Material: Pt, PtAu, PtIr, PtRh
Composition: Pt, PtAu5, PtIr5, PtRh5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%, Ir ≥ 99.99%, Rh ≥ 99.99%
Capacity: 5mL~125mL, or Customized
Other: Reinforced Base and Rim Available
DRAWING | Code | Capacity | B (mm) | A1 (mm) | Weight (g) | Reinforced Base and Rim Weight Range | Lid Weight (g) |
![]() ![]() | PT9501 | 5ml | 20 | 26 | 4 | 6 | 3 |
PT9502 | 8ml | 21 | 25 | 6 | 8 | 3 | |
PT9503 | 10ml | 23 | 27 | 7 | 9 | 3 | |
PT9504 | 10ml | 24 | 29 | 8 | 13 | 3 | |
PT9505 | 12ml | 25 | 30 | 10 | 13 | 3 | |
PT9506 | 15ml | 27 | 30 | 11 | 14 | 3 | |
PT9507 | 15ml | 27 | 32 | 13 | 19 | 3 | |
PT9508 | 20ml | 28 | 33 | 15 | 18 | 4 | |
PT9509 | 20ml | 31 | 37 | 18 | 26 | 4 | |
PT9510 | 25ml | 30 | 36 | 19 | 23 | 4 | |
PT9511 | 25ml | 34 | 41 | 25 | 35 | 4 | |
PT9512 | 30ml | 32 | 40 | 22 | 27 | 6 | |
PT9513 | 30ml | 34 | 38 | 25 | 31 | 6 | |
PT9514 | 35ml | 33 | 42 | 25 | 32 | 6 | |
PT9515 | 35ml | 36 | 44 | 26 | 38 | 6 | |
PT9516 | 40ml | 34 | 43 | 30 | 36 | 7 | |
PT9517 | 40ml | 40 | 45 | 30 | 41 | 7 | |
PT9518 | 50ml | 42 | 50 | 36 | 51 | 8 | |
PT9519 | 50ml | 41 | 50 | 39 | 58 | 8 | |
PT9520 | 60ml | 39 | 48 | 46 | 54 | 9 | |
PT9521 | 70ml | 41 | 52 | 50 | 63 | 12 | |
PT9522 | 70ml | 45 | 55 | 53 | 75 | 12 | |
PT9523 | 80ml | 47 | 52 | 51 | 72 | 14 | |
PT9524 | 90ml | 48 | 57 | 52 | 81 | 15 | |
PT9525 | 100ml | 48 | 62 | 70 | 91 | 17 | |
PT9526 | 120ml | 57 | 57 | 84 | 98 | 22 | |
PT9527 | 125ml | 59 | 59 | 97 | 114 | 25 |
Platinum Crucible for Volatile Matters

Material: Pt, PtAu, PtIr, PtRh
Composition: Pt, PtAu5, PtIr5, PtRh5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%, Ir ≥ 99.99%, Rh ≥ 99.99%
Capacity: 5mL~50mL, or Customized
Other: Can be Customized
DRAWING | Code | Capacity (ml) | B (mm) | A1 (mm) | Weight (g) | Lid Weight (g) |
![]() | PT9401 | 10 | 28 | 25 | 7 | 6 |
PT9402 | 15 | 31 | 31 | 11 | 8 | |
PT9403 | 20 | 35 | 33 | 15 | 9 | |
PT9404 | 25 | 35 | 36 | 19 | 10 | |
PT9405 | 30 | 36 | 40 | 22 | 11 | |
PT9406 | 40 | 42 | 42 | 30 | 13 | |
PT9407 | 50 | 44 | 45 | 38 | 14 |
Standard Platinum Dish

Material: Pt, PtAu, PtIr, PtRh
Composition: Pt, PtAu5, PtIr5, PtRh5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%, Ir ≥ 99.99%, Rh ≥ 99.99%
Capacity: 20mL~500mL, or Customized
Other: Can be Customized
Platinum Dish | Capacity (mL) | A1 (mm) | B (mm) | Weight (g) |
![]() | 20 | 50 | 18 | 16 |
25 | 50 | 18.5 | 17 | |
30 | 50 | 19 | 18 | |
35 | 50 | 20 | 19 | |
40 | 50 | 34 | 20 | |
50 | 60 | 28 | 40 | |
60 | 60 | 30 | 45 | |
75-80 | 65 | 30-35 | 45-50 | |
90 | 70 | 35 | 50 | |
100 | 75 | 36 | 60 | |
150 | 80 | 38 | 70 | |
200 | 90 | 45 | 90 | |
250 | 92 | 56 | 110 | |
Silver Beaker | A1 (mm) | B (mm) | Weight (g) | |
250ml | 66 | 82 | 200-250 |
Platinum Evaporation Dish

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Capacity: 20mL~250mL, or Customized
Platinum Dish | Capacity (mL) | A1 (mm) | B (mm) | Weight (g) |
![]() | 20 | 50 | 18 | 16 |
25 | 50 | 18.5 | 17 | |
30 | 50 | 19 | 18 | |
35 | 50 | 20 | 19 | |
40 | 50 | 34 | 20 | |
50 | 60 | 28 | 40 | |
60 | 60 | 30 | 45 | |
75-80 | 65 | 30-35 | 45-50 | |
90 | 70 | 35 | 50 | |
100 | 75 | 36 | 60 | |
150 | 80 | 38 | 70 | |
200 | 90 | 45 | 90 | |
250 | 92 | 56 | 110 | |
Silver Beaker | A1 (mm) | B (mm) | Weight (g) | |
250ml | 66 | 82 | 200-250 |
Platinum Crucible and Mold for Claisse®

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Dimple Crucibles, Flat Base Crucibles, Molds
Capacity: Customized
Dimple Type | Code | A | B | C | D | E | Weight (g) |
![]() | CC1 | 37 | 32 | 20 | 5 | 43 | 26 |
CC2 | 37 | 32 | 20 | 5 | 43 | 30 | |
CC8 | 35 | 35 | 21 | 5 | 43 | 60 | |
CC21 | 36.5 | 32 | 20 | 5.5 | 43 | 26 | |
CC22 | 36.5 | 32 | 20 | 5.5 | 43 | 31 |
Flat Base Type | Code | A | B | C | D | E | Weight (g) |
![]() | CC3 | 35 | 35 | 17 | 3.5 | 40 | 21 |
CC4 | 35 | 35 | 21 | 3.5 | 44 | 26 | |
CC5-N | 37 | 32 | 26 | 5 | 43 | 30 | |
CC23 | 31.6 | 35 | 15 | 3.9 | 43 | 24 | |
CC24 | 36.5 | 32 | 20 | 5.5 | 43 | 26 | |
CC25 | 36.5 | 32 | 20 | 5.5 | 43 | 30 |
Flat Base SD Type | Code | A | B | C | D | E | Weight (g) |
![]() | CC5 | 37 | 32 | 26 | 5 | 43 | 30 |
CC26 | 36.5 | 32 | 20 | 5.5 | 43 | 26 | |
CC27 | 36.5 | 32 | 20 | 5.5 | 43 | 30 |
Mold Type | Code | A | B | C | Weight (g) |
![]() | CM1 | 30/31 | 6 | 39 | 18 / 30 |
CM2 | 31/33 | 6 | 41 | 19 / 32 | |
CM3 | 32/34 | 6 | 41 | 21 / 36 | |
CM4 | 32/38 | 6 | 45 | 22 / 36 | |
CM5 | 35/37 | 6 | 44 | 25 / 48 | |
CM6 | 38/41 | 6 | 49 | 29 / 48 | |
CM7 | 40/42 | 6 | 49 | 34 / 48 | |
CM8 | 37/40 | 6 | 49 | 28 / 48 | |
CM9 | 30/32 | 6 | 39 | 21 / 21 | |
CM10 | 38/40 | 6 | 48 | 34 / 43 | |
CM13 | 32/36 | 6 | 45 | 40 / 50 | |
CM21 | 31.5/32.6 | 6 | 41 | 31 | |
CM22 | 34.5/35.6 | 3.5 | 44 | 44 | |
CM23 | 39.5/40.6 | 3.5 | 49 | 49 |
Platinum Crucible and Mold for Perl-X®

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Crucibles, Molds
Capacity: Customized
Crucible | Code | A (mm) | B (mm) | C (mm) | D (mm) | Weight (g) |
![]() | PC1 | 41 | 40 | 41 | 49 | 116 |
PC2 | 41 | 40 | 41 | 49 | 80 | |
PC3 | 44 | 40 | 44 | 52 | 90 | |
PC4 | 38 | 40 | 42 | 50 | 75 | |
PC5 | 28 | 40 | 38 | 50 | 70 | |
PC6 | 28 | 40 | 40 | 50 | 75 | |
PC7 | 22 | 46 | 34 | 54 | 80 | |
PC9 | 41 | 40 | 42 | 50 | 90 | |
PC10 | 32.7 | 40 | 40.4 | 50 | 78 |
Mold | Code | A (mm) | B (mm) | C (mm) | D (mm) | Weight (g) |
![]() ![]() | PM2 | 30/32 | 3 | 5 | 55 | 40 |
PM3 | 30/32 | 3.5 | 11.5 | 65 | 50 | |
PM4 | 39.5/40.5 | 3.5 | 11.5 | 65 | 58 | |
PM5 | 35.5/36.5 | 3.5 | 11.5 | 65 | 50 | |
PM6 | 35.5/36.5 | 3 | 5 | 55 | 50 | |
PM7 | 39.5/40.5 | 3 | 11.5 | 65 | 58 | |
PM8 | 32/33.5 | 3.5 | 11.5 | 65 | 50 | |
PM9 | 39.5/40.5 | 3 | 11.5 | 65 | 58 | |
PM10 | 33.5/35.5 | 3.5 | 11.5 | 65 | 50 | |
PM11 | 30/32 | 3.6 | 10.2 | 65 | 70 |
Platinum Crucible and Mold for Vulcan®

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Three-Pin Crucible, Rolled Lip Crucible, Square Molds
Capacity: Customized
Three-Pin | Code | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Weight (g) |
![]() | SC1 | 35 | 38 | 20 | 5 | 60 | 31 |
SC2 | 44 | 38 | 26 | 5 | 60 | 50 | |
SC3 | 39 | 43 | 22 | 5 | 60 | 38 |
Rolled Lip | Code | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Weight (g) |
![]() | SC4 | 33 | 38 | 21 | 7 | 39 | 40 |
Square Flange Mold | Code | A (mm) | B (mm) | C (mm) | Weight (g) |
![]() | SM1 | 29/31 | 3 | 41 | 27 |
SM2 | 30/32 | 3 | 41 | 29 | |
SM3 | 32/34 | 3 | 41 | 31 | |
SM4 | 34/36 | 3 | 51 | 45 | |
SM5 | 39/41 | 3 | 51 | 45 |
Platinum Crucible and Mold for Phoenix

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Flared Crucible, Rolled Lip Crucible, Mold
Capacity: Customized
Crucibles | Code | Description | B (mm) | A1 (mm) | D (mm) | Weight (g) |
![]() | PT0701 | Flared Type | 36 | 36 | 20 | 40 |
PT0702 | Flared Type | 43 | 36 | 20 | 40 | |
PT0703 | Flared Type | 36.5 | 34 | 20 | 40 | |
PT0704 | Rolled lip type | 38 | 33 | 21 | 40 | |
PT0705 | Rolled lip type | 30 | 33 | 20 | 30 | |
PT0706 | Rolled lip type | 35 | 40 | 22 | 36 |
Mold | Code | D2 (mm) | A2 (mm) | A1 (mm) | F (mm) | Weight (g) |
![]() | PT0707 | 30 | 32 | 42 | 3 | 60-100 |
PT0708 | 30 | 32 | 42 | 4 | 60-100 | |
PT0709 | 30 | 32 | 46 | 3 | 60-100 | |
PT0710 | 32 | 34 | 46 | 3 | 60-100 | |
PT0711 | 33 | 35 | 46 | 3 | 60-100 | |
PT0712 | 39 | 41 | 52 | 3 | 60-100 | |
PT0713 | 39 | 41 | 56 | 3 | 60-100 |
Platinum Crucible and Mold for Katanax®

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Crucible, Mold
Capacity: Customized
Crucible | Code | A (mm) | B (mm) | C (mm) | Weight (g) |
![]() | KC1 | 40 | 32 | 28 | 26 |
KC2 | 40 | 32 | 28 | 30 | |
KC4-flared | 44 | 32 | 28 | 43 | |
KC7 | 40 | 32 | 32 | 28 | |
KC8 | 40 | 32 | 32 | 33 |
Mold | Code | A (mm) | B (mm) | C (mm) | Weight (g) |
![]() | KM1 | 30/32 | 6 | 39 | 18 or 30 |
KM2 | 31/33 | 6 | 41 | 19 or 32 | |
KM3 | 32/34 | 6 | 41 | 21 or 36 | |
KM4 | 32/38 | 6 | 45 | 22 or 36 | |
KM5 | 35/37 | 6 | 44 | 25 or 40 | |
KM8 | 37/40 | 6 | 49 | 28 or 48 | |
KM6 | 38/41 | 6 | 49 | 29 or 48 | |
KM7 | 40/42 | 6 | 49 | 34 or 48 | |
KM9 | 30/32 | 6 | 39 | 18 or 30 |
Platinum Crucible and Mold for Leco®

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Crucible, Mold
Capacity: Customized
Crucible | Code | B (mm) | A2 (mm) | D (mm) | A1 (mm) | Weight (g) |
![]() | PT9801 | 35 | 37 | 20 | 44 | 45 |
PT9802 | 38 | 35 | 21 | 44 | 45 |
Mold | Code | D2 (mm) | A2 (mm) | A1 (mm) | B (mm) | C (mm) | Weight (g) |
![]() | PT9803 | 35 | 36 | 44 | 7.2 | 0.8 | 35 |
PT9804 | 35 | 38.5 | 44 | 7.2 | 0.8 | 45 | |
PT9805 | 39 | 41 | 47 | 4.2 | 0.8 | 40 | |
PT9806 | 39 | 41 | 52 | 5 | 0.8 | 40 |
Platinum Crucible and Mold for Linn®

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Crucible, Mold
Capacity: Customized
Crucible | Code | A1 (mm) | B (mm) | D (mm) | Weight (g) |
![]() | PT9701 | 41 | 49.5 | 20 | 38 |
PT9702 | 35 | 48 | 20 | 35 |
Mold | Code | D2 (mm) | A2 (mm) | A1 (mm) | B (mm) | Weight (g) |
![]() | PT9703 | 31 | 33 | 41 | 3 | 30 |
PT9704 | 39 | 41 | 51 | 3 | 45 |
Platinum Crucible and Mold for Herzog

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Model: Crucible, Mold
Capacity: Customized
Crucible | Code | Description | A1 (mm) | D (mm) | B (mm) | Weight (g) |
![]() | PT9901 | No rim (illustrated) | 50 | 38.5 | 30 | 76 |
PT9902 | No rim | 50 | 38.5 | 30 | 90 | |
PT9903 | No rim | 50 | 38.5 | 30 | 115 | |
PT9904 | With upper rim | 50 | 38.5 | 30 | 110 | |
PT9905 | Upper rim and curved base | 50 | 38.5 | 30 | 115 | |
PT9906 | With crucible support | 36 | 22 | 38.5 | 40 |
Mold | Code | Shape | D2 (mm) | A2 (mm) | A1 (mm) | B (mm) | C (mm) | Weight (g) |
![]() | PT9907 | Round | 29 | 31 | 44 | 3 | 1.5 | 40 |
PT9908 | Square | 29 | 31 | 44 | 3.5 | 2.5 | 65 | |
PT9909 | Round | 39 | 41 | 52 | 4 | 1.5 | 50 | |
PT9910 | Square | 38 | 40 | 50 | 4.5 | 3 | 113 |
Platinum Combustion Boat

Material: Platinum Gold
Composition: PtAu5
Purity: Pt ≥ 99.95%, Au ≥ 99.99%
Capacity: 1mL~10mL, or Customized
Product | Capacity | Top Length | Bottom Width | Height | Base Thickness |
Platinum Combustion Boat | ≈ 0.10mL | 10mm | 4mm | 3mm | 0.15mm |
≈ 0.15mL | 15mm | 6mm | 4mm | 0.15mm | |
≈ 0.20mL | 12mm x 6mm | 11mm x 4mm | 4mm | 0.15mm | |
≈ 0.45mL | 25mm | 5mm | 4mm | 0.15mm | |
≈ 0.50mL | 20mm | 7mm | 4mm | 0.15mm | |
≈ 0.50mL | 30mm | 5mm | 4mm | 0.15mm | |
≈ 2.15mL | 40mm | 12mm | 5mm | 0.15mm | |
≈ 3.75mL | 35mm | 12mm | 10mm | 0.15mm | |
≈ 4.5mL | 70mm | 9mm | 8mm | 0.20mm | |
≈ 5.40mL | 50mm | 12mm | 10mm | 0.15mm | |
≈ 6.0mL | 80mm | 10mm | 8mm | 0.20mm | |
≈ 6.50mL | 60mm | 12mm | 10mm | 0.15mm | |
≈ 11mL | 100mm | 12mm | 10mm | 0.20mm | |
≈ 15mL | 120mm | 14mm | 10mm | 0.20mm | |
≈ 17.5mL | 140mm | 12mm | 12mm | 0.20mm | |
≈ 24mL | 160mm | 12mm | 14mm | 0.20mm | |
≈ 36mL | 180mm | 14mm | 16mm | 0.20mm | |
≈ 52.5mL | 200mm | 16mm | 18mm | 0.20mm | |
Pt Boat With Handle | 3mL | 60mm | 9mm | 9mm | |
4mL | 48mm | 13mm | 10mm | ||
6mL | 60mm | 13mm | 10mm | ||
9mL | 85mm | 13mm | 10mm | ||
12mL | 110mm | 13mm | 10mm | ||
Pt Boat Without Handle | 3mL | 60mm | 9mm | 9mm | |
12mL | 100mm | 16mm | 13mm |
Description
Platinum Crucibles Molds and Boats are indispensable in scientific and industrial applications due to their exceptional thermal stability, chemical inertness, and durability. Made from pure platinum or platinum alloyed with metals like gold, iridium, and rhodium, they withstand extreme temperatures above 1,700 °C without melting or reacting with the sample, ensuring purity and accuracy in analyses. Their resilience against corrosion and ability to be reused make them a cost-effective solution for high-temperature processes, including gravimetric analysis, fusion reactions, and materials science research. Available in various sizes and designs, including those with reinforced rims or lids to prevent contamination, Platinum Crucibles Molds and Boats are tailored for different specific needs, underscoring their critical role in ensuring the reliability and precision of experimental and manufacturing processes.
Applications of Platinum Crucibles
- High-Temperature Strength: Platinum crucibles offer high-temperature strength up to 2192°F (1200°C), making them ideal for applications requiring extreme heat resistance.
- Corrosion and Oxidation Resistance: These crucibles are known for their excellent resistance to corrosion and oxidation, ensuring durability in challenging environments.
- Chemical Attacks Resistance: Platinum crucibles exhibit exceptional resistance to chemical attacks by acids and fusion mixtures, making them suitable for various chemical processes and applications.
- Laboratory Applications: Widely used in laboratories for fusions, wet chemistry, digestion, ash testing, and Loss on Ignition (LOI) applications due to their reliability and inertness.
- XRF Sample Preparation: Platinum crucibles are commonly utilized for X-ray fluorescence (XRF) sample preparation, ensuring accurate and reliable results in analytical chemistry.
- Precision Manufacturing: These crucibles are manufactured to exact dimensions and weights, ensuring high quality and reliability in analytical processes like XRF, ICP, and AA analysis.
- Asset Tracking: Each platinum crucible is engraved with a serial number for easy asset tracking, enhancing traceability and quality control in laboratory settings.
- Non-Wetting Properties: The combination of platinum and gold in some crucibles imparts a negative adhesion coefficient, preventing droplets from adhering to the surface during sample preparation for ICP, AA, and XRF analysis.
Packaging
Our Platinum Crucibles, Molds and Boats are clearly labeled externally to ensure efficient identification and quality control. To prevent any damage during storage or transportation, we take great care.