Beryllium Copper Alloy 174 Strip; 1/2HT (TH02) Temper (UNS C17410)
Alloy 174 strip is a mill hardened copper beryllium strip alloy designed for use in the automotive, appliance, and telecom markets. It provides high yield and fatigue strength with exceptional electrical conductivity and good resistance to stress relaxation. Typical applications include high reliability automotive terminals and spring contacts for switches and relays. A
Chemical Composition (Weight Percent) Alloy Beryllium Cobalt Copper C17410 0.15 - 0.50 0.35 - 0.60 Balance Typical Physical Properties Elastic Modulus Melting Point (Solidus) Electrical Conductivity/ Resistivity Density** Thermal Expansion Coefficient (20 to 200 °C) Thermal Conductivity (25 °C) 20,000 ksi 138 GPa 1880 °F 1020 °C 45-60% IACS 2.9-3.8 μΩ-cm 0.318 lb/in3 8.80 g/cm3 9.8 x 10-6 in/in °F 17.6 x 10-6 m/m °C 135 BTU/ft hr °F 230 W/ m K Typical Mechanical Properties* Temper 0.2% Offset Yield Strength (min) Ultimate Tensile Strength (min) Elongation (min)** Hardness Formability (Minimum Bend Radius to Thickness Ratio for a 90° Bend)*** ksi MPa ksi MPa Percent DPH Longitudinal Transverse ½ HT (TH02) HT (TH04) 80 - 100 100 - 120 550 - 690 690 - 830 95 - 115 110 - 130 655 - 790 760 - 895 10 - 20 7 - 17 180 - 230 210 - 278 0.5 1.2 0.5 5.0 *Properties may vary by thickness. **Percent elongation numbers are valid only for strip thicker than 0.004" (0.10 mm). ***Formability numbers valid for strip 0.010" (0.25 mm) and thinner.
C17200 Details:
C17200 Beryllium Copper
Cube2--C17200 (CDA 172) Beryllium Copper is the most commonly utilized Copper Beryllium alloy and is notable for its highest strength and hardness compared to commercial copper alloys. C17200 alloy contains appr. 2% of beryllium and achieves its ultimate tensile strength can exceed 200 ksi, while the hardness approaches Rockwell C45. Meanwhile, the electrical conductivity is a minimum of 22% IACS in the fully aged condition.C17200 also exhibits exceptional resistance to stress relaxation at elevated temperatures.
Typical Application for C17200 Beryllium Copper Alloys:
Electrical Industry: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay parts, Connectors, Spring Connectors, Contact Bridges, Belleville Washers, Navigational Instruments, Clips
Fasteners: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts
Industrial: Pumps, Springs, Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Wear Plates on Heavy Equipment, Bellows
Available Sizes:
Custom Diameter & Sizes, Random Mill lengths
Available Products (forms):
Round bars, Round strips, Round wires, Round tube,
Flat bars, Square bars, Rectangular bars, Hexagon bars, Plates, Sheets, Coils
Custom shapes are available upon request.
Chemical Composition:
Be: 1.85-2.10%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
Typical Physical Properties:
Density (g/cm3): 8.36
Density before age hardening (g/cm3): 8.25
Elastic Modulus (kg/mm2 (103)): 13.40
Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C): 17 x 10-6
Thermal Conductivity (cal/(cm-s-°C)): 0.25
Melting Range (°C): 870-980
Note:
1). the units are based upon Metric.
2). the typical physical properties apply to age hardened products.
International Specification:
Rods/Bars/Tubes: ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS4650,4651;
RWMA Class 4
Strips: ASTM B194, AMS4530,4532; SAE J461,463
Sheets: ASTM B194
Wires: ASTM B197, AMS4725, SAE J461,463
Plates: ASTM B194, SAE J461,463; AMS4530,4533,4534,AMS4650,4651; RWMA Class 4.
European Standards: CuBe2, DIN 2.1247, CW101C to EN
Note:
ASTM: American Society for Testing and Materials
SAE: Society of Automotive Engineers
AMS: Aerospace Materials Specification (Published by SAE)
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced to ASTM.
Mechanical Properties:
The Mechanical Properties will be available on request from customers.
Most Commonly Temper Used:
Rods/Bars/Tubes: A(TB00),H(TD04),AT(TF00),HT(TH04)
Strips: A(TB00),1/4 H(TD01),1/2 H(TD02),H(TD04)
Sheets: A(TB00),1/4 H(TD01),1/2 H(TD02),H(TD04),AT(TF00)
Wires: A(TB00),1/4 H(TD01),1/2 H(TD02),3/4H(TD03),H(TD04)
Plates: A(TB00),H(TD04),AT(TF00),HT(TH04)
BERYLLIUM COPPER PHYSICAL & CHEMICAL PROPERTIES
| Beryllium Copper Physical Properties 25 C17200 |
|
|
|
Yield Strength |
|
108 cyclesksi |
Hardness |
|
| Temper |
Heat Treatment |
Tensile Strength ksi |
0.2% offset ksi |
Elongation % |
Fatigue Strength |
Diamond Pyramid |
Rockwell B or C |
Rockwell Superficial |
Electrical Conductivity % IACS |
| A Dead Soft (TB00) |
-- |
60-76 |
28-36 |
35-65 |
30-35 |
90-144 |
B45-78 |
30T46-67 |
15-19 |
| A Planished (TB00) |
-- |
60-78 |
30-55 |
35-60 |
30-35 |
90-144 |
B45-78 |
30T46-67 |
15-19 |
| 1/4 H (TD01) |
-- |
75-88 |
60-80 |
20-45 |
31-36 |
121-185 |
B68-90 |
30T62-75 |
15-19 |
| 1/2 H(TD02) |
-- |
85-100 |
75-95 |
12-30 |
32-38 |
176-216 |
B88-96 |
30T74-79 |
15-19 |
| H (TD04) |
-- |
100-120 |
90-115 |
2-18 |
35-39 |
216-287 |
B96-102 |
30T79-83 |
15-19 |
| AT (TF00) |
3 hr. at 600 °F |
165-195 |
140-175 |
3-15 |
40-45 |
353-413 |
C36-42 |
30N56-62 |
22-28 |
| 1/4 HT (TH01) |
2 hr. at 600 °F |
175-205 |
150-185 |
3-10 |
40-45 |
353-424 |
C36-43 |
30N56-63 |
22-28 |
| 1/2 HT (TH02) |
2 hr. at 600 °F |
185-215 |
160-195 |
1-8 |
42-47 |
373-435 |
C38-44 |
30N58-63 |
22-28 |
| HT (TH04) |
2 hr. at 600 °F |
190-220 |
165-205 |
1-6 |
45-50 |
373-446 |
C38-45 |
30N58-65 |
22-28 |
| Beryllium Copper Physical Properties 190 C17200 |
|
|
|
Yield Strength |
|
108 Cyclesksi |
Hardness |
|
| Temper |
Heat Treatment |
Tensile Strength ksi |
0.2% offset ksi |
Elongation % |
Fatigue Strength |
Diamond Pyramid |
Rockwell B or C |
Rockwell Superficial |
Electrical Conductivity % IACS |
| AM (TM00) |
Mill Hardened |
100-110 |
70-95 |
16-30 |
40-45 |
210-251 |
B95-C23 |
30N37-44 |
17-28 |
| 1/4 HM (TM01) |
Mill Hardened |
110-120 |
80-110 |
15-25 |
41-47 |
230-271 |
C20-26 |
30N41-47 |
17-28 |
| 1/2 HM (TM02) |
Mill Hardened |
120-135 |
95-125 |
12-22 |
42-48 |
250-301 |
C23-30 |
30N44-51 |
17-28 |
| HM (TM04) |
Mill Hardened |
135-150 |
110-135 |
9-20 |
45-52 |
285-343 |
C28-35 |
30N48-55 |
17-28 |
| SHM (TM05) |
Mill Hardened |
150-160 |
125-140 |
9-18 |
47-55 |
309-363 |
C31-37 |
30N52-56 |
17-28 |
| XHM (TM06) |
Mill Hardened |
155-175 |
135-170 |
4-15 |
50-57 |
317-378 |
C32-38 |
30N52-58 |
17-28 |
| XHMS (TM08) |
Mill Hardened |
175-190 |
150-180 |
3-12 |
50-60 |
325-413 |
C33-42 |
30N53-62 |
17-28 |
| Beryllium Copper Physical Properties 290 C17200 |
|
|
|
Yield Strength |
|
108 Cyclesksi |
Hardness |
|
| Temper |
Heat Treatment |
Tensile Strength ksi |
0.2% offset ksi |
Elongation % |
Fatigue Strength |
Diamond Pyramid |
Rockwell B or C |
Rockwell Superficial |
Electrical Conductivity % IACS |
| TM00 |
Mill Hardened |
100 min |
75-95 |
19-35 |
40-45 |
225-309 |
B98-C31 |
30T81-30N52 |
17-26 |
| TM02 |
Mill Hardened |
120 min |
95-115 |
14-30 |
42-48 |
255-339 |
C25-34 |
30N46-54 |
17-26 |
| TM04 |
Mill Hardened |
140 min |
115-135 |
9-25 |
44-50 |
285-369 |
C28-38 |
30N48-58 |
17-26 |
| TM06 |
Mill Hardened |
155 min |
135-155 |
6-13 |
47-57 |
317-393 |
C32-40 |
30N52-60 |
17-26 |
| TM08 |
Mill Hardened |
175 min |
155-175 |
3-15 |
50-60 |
345-429 |
C35-43 |
30N55-62 |
17-26 |
| Beryllium Copper Physical Properties 174 C17410 |
|
|
|
Yield Strength |
|
108 Cyclesksi |
Hardness |
|
| Temper |
Heat Treatment |
Tensile Strength ksi |
0.2% offset ksi |
Elongation % |
Fatigue Strength |
Diamond Pyramid |
Rockwell B or C |
Rockwell Superficial |
Electrical Conductivity % IACS |
| 1/2 HT (TH02) |
Mill Hardened |
95-115 |
80-100 |
10-20 |
40-45 |
180-230 |
B89-98 |
30T75-81.9 |
50 min |
| HT (TH04) |
Mill Hardened |
110-130 |
100-120 |
7-17 |
40-45 |
210-278 |
B95-102 |
30T79-30N48 |
45-60 |
| Beryllium Copper Physical Properties 3 C17510 |
|
|
|
Yield Strength |
|
108 Cyclesksi |
Hardness |
|
| Temper |
Heat Treatment |
Tensile Strength ksi |
0.2% offset ksi |
Elongation % |
Fatigue Strength |
Diamond Pyramid |
Rockwell B or C |
Rockwell Superficial |
Electrical Conductivity % IACS |
| A (TB00) |
- |
35-55 |
20-45 |
20-40 |
20-30 |
65-125 |
B20-45 |
30T28-45 |
20-30 |
| H (TD04) |
- |
70-85 |
55-80 |
2-10 |
25-35 |
144-176 |
B78-88 |
30T69-75 |
20-30 |
| AT (TF00) |
Mill Hardened |
100-130 |
80-100 |
10-25 |
38-44 |
195-275 |
B92-100 |
30T77-82 |
45-60 |
| HT (TH04) |
Mill Hardened |
110-135 |
95-120 |
8-20 |
42-47 |
216-287 |
B95-102 |
30T79-83 |
48-60 |
| Beryllium Copper Physical Properties Brush 60 C17460 |
|
|
|
Yield Strength |
|
108 Cyclesksi |
Hardness |
|
| Temper |
Heat Treatment |
Tensile Strength ksi |
0.2% offset ksi |
Elongation % |
Fatigue Strength |
Diamond Pyramid |
Rockwell B or C |
Rockwell Superficial |
Electrical Conductivity % IACS |
| 3/4 HT (TH03) |
Mill Hardened |
115-135 |
95-115 |
11min |
46-47 |
|
|
|
50min |
| HT (TH04) |
Mill Hardened |
120-140 |
105-125 |
10min |
42-45 |
|
|
|
50min |
| Copper Beryllium Strip Specifications |
| Materion Brush Performance Alloys |
UNS Number |
Specification |
| 25 |
C1720 |
ASTM B194 |
| 190 |
C17200 |
ASTM B194 |
| 290 |
C17200 |
ASTM B194 |
| 3 |
C17510 |
ASTM B534 |
| 174 |
C17410 |
ASTM B768 |
| Brush 60 |
C17460 |
ASTM B768 |
Beryllium Copper BeCu P2 | Beryllium Copper C1720P | Beryllium Copper C1720R | Beryllium Copper AMS 4530 | Beryllium Copper AMS 4532 | Beryllium Copper AMS 4533 | Beryllium Copper AMS 4534 | Beryllium Copper AMS 4535 | Beryllium Copper AMS 4650 | Beryllium Copper AMS 4651 | Beryllium Copper AMS 4725 | Beryllium Copper API Spec 7 | Beryllium Copper ASNA 3384 | Beryllium Copper ASNA 3400 | Beryllium Copper ASNA 3417 | Beryllium Copper ASNA 6110 | Beryllium Copper No.172 | Beryllium Copper ASTM B194 | Beryllium Copper ASTM B196 | Beryllium Copper ASTM B197 | Beryllium Copper ASTM B251 | Beryllium Copper ASTM B570 | Beryllium Copper ASTM B643 | Beryllium Copper BMS 7-353 | Beryllium Copper C1720B | Beryllium Copper CNS 10879 | Beryllium Copper CuBe2 | Beryllium Copper 2.1247 | Beryllium Copper CuBe2 DIN 17666 | Beryllium Copper CuBe2 DIN 17670 | Beryllium Copper CuBe2 DIN 17672 | Beryllium Copper CuBe2 DIN 17677 | Beryllium Copper CuBe2 DIN 17800 | Beryllium Copper CuBe2 DIN 17682 | Beryllium Copper CuBe2 DIN 17671 | Beryllium Copper DMS 1904 | Beryllium Copper DMS 2088 | Beryllium Copper CuBe2 | Beryllium Copper CW101C | Beryllium Copper EN 1654 | Beryllium Copper EN 2163 | Beryllium Copper EN 12163 | Beryllium Copper EN 12165 | Beryllium Copper EN 12166 | Beryllium Copper EN 12167 | Beryllium Copper EN 12420 | Beryllium Copper EN 13148 | Beryllium Copper EN 14436 | Beryllium Copper QBe 2 | Beryllium Copper GB3134 | Beryllium Copper GB4431 | Beryllium Copper GB5233 | Kobber-beryllium CuBe2 | | Beryllium Copper CuBe2 ISO R1187 | Beryllium Copper CuBe2 ISO R1983 | Beryllium Copper BeCu P2 | Beryllium Copper C1720B | Beryllium Copper C1720P | Beryllium Copper C1720R | Beryllium Copper BeCu P2 JIS H 3130 | Beryllium Copper BeCu P2 JIS H 3270 | Beryllium Copper BeCu W2 JIS H 3801 | Beryllium Copper BeCu W2 JIS H 3802 | Beryllium Copper BeCu W2 JIS H 3803 | Beryllium Copper KS C1720 | Beryllium Copper MIL-C-21657 | Beryllium Copper Br Be NBN 66.51 | Beryllium Copper Cu Be2 Co Ni NCH 252 of 68 | Beryllium Copper Cu Be2 Co Ni NCH 259 of 70 | Beryllium Copper NFL-14709 | Beryllium Copper NF A51-114 | Beryllium Copper Cu-Be2 Co Ni NEN 6030 | Beryllium Copper Cu-Be2 Co Ni NEN 6033 | Beryllium Copper C1720 | Beryllium Copper QQ-C-530 | Beryllium Copper QQ-C-533 | Beryllium Copper RWMA Class 4 | Beryllium Copper SAE J461 | Beryllium Copper SAE J463 | Beryllium Copper UNS C17200 | Beryllium Copper Werkstoff Nr.2.1247 | Beryllium Copper Brush 190 | Beryllium Copper Mallory | Beryllium Copper Berylco