C17300 Copper Alloys – Material CW110C; 2.0850 Copper

Short Description:

C17300 Leaded Beryllium Copper (CDA 173)

EN CW102C, DIN 2.1248

FOB Price: US $0.5 - 9,999 / Piece

Min.Order Quantity: 100 Piece/Pieces

Supply Ability: 10000 Piece/Pieces per Month

Port: Shanghai, Ningbo ,Shenzhen

Delivery time: 7-10 days after confirming the order

Origin: China

Payment Term: T/T , L/C

Standard: ASTM,AISI,SUS,JIS,EN,DIN,GB, ASME,etc

Mill: Pocso/ Tisco/ Lisco/ Jisco/ Bao steel/ H Wang

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Product Detail

Technical Specification

Product Package & Shipment

Company Introduction

Question & Answers

Product Tags

C17300 Copper Alloys – Material CW110C; 2.0850 Copper

UNS C17300 Beryllium Copper Alloys

C17300 Leaded Beryllium Copper

Cube2Pb–C17300 (CDA 173) The Leaded Beryllium Copper is identical to a version of lead-containing alloy C17200 and achieves the same exceptional strength after hardening. C17300 rods contain a small amount of lead to provide an alloy tailored for automatic machining operations and the Lead promotes the formation of finely divided chips thus extending cutting tool life.

Chemical Composition

Element
	Cu(1,2)	Pb	Al	Be	Co(3)	Si
(1) Cu + Sum of Named Elements 99.5% min.(2) Cu value includes Ag.(3) Ni + Co 0.20% min.: Ni + Fe + Co 0.6% max.
Min (%)		0.20		1.80	0.20
Max (%)	Rem	0.6	0.20	2.00		0.20

Mechanical Properties*

Physical Properties

(1) In the precipitation hardened condition.
Melting Point – Liquidus°F	1800
Melting Point – Solidus°F	1590
Density lb/cu in. at 68°F	0.298
Specific Gravity	8.26
Electrical Conductivity% IACS at 68°F	22(1)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F	62
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)	9.9
Specific Heat CapacityBtu/ lb /°F at 68°F	0.1
Modulus of Elasticity in Tensionksi	18500
Modulus of Rigidityksi	7300

Applicable Specifications

Rod	ASTM B 196 / B 196 M, MILITARY MIL-C-21657	NF A 51-114
Wire	ASTM B 197 / B 197 M	NF A 51-114

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

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Material Grade

Material	ASTM A240 Standard	201, 304 304L 304H 309S 309H 310S 310H 316 316H 316L 316Ti 317 317L 321 321H 347 347H 409 410 410S 430 904L
	ASTM A480 Standard	302, s30215, s30452, s30615, 308, 309, 309Cb, 310, 310Cb, S32615,S33228, S38100, 304H, 309H, 310H, 316H, 309HCb, 310HCb, 321H,347H, 348H, S31060, N08811, N08020, N08367, N08810, N08904,N08926, S31277, S20161, S30600, S30601, S31254, S31266,S32050, S32654, S32053, S31727, S33228, S34565, S35315,S31200, S31803, S32001, S32550, S31260, S32003, S32101,S32205, S32304, S32506, S32520, S32750, S32760, S32900, S32906, S32950, S32974
	JIS 4304-2005 Standard	SUS301L,SUS301J1,SUS302,SUS304, SUS304L, SUS316/316L, SUS309S, SUS310S, 3SUS21L, SUS347, SUS410L, SUS430, SUS630
	JIS G4305 Standard	SUS301, SUS301L, SUS301J1, SUS302B, SUS304, SUS304Cu,SUS304L, SUS304N1, SUS304N2, SUS304LN, SUS304J1, SUSJ2,SUS305, SUS309S, SUS310S, SUS312L, SUS315J1, SUS315J2,SUS316, SUS316L, SUS316N, SUS316LN, SUS316Ti, SUS316J1,SUS316J1L,SUS317, SUS317L, SUS317LN, SUS317J1, SUS317J2,SUS836L, SUS890L, SUS321, SUS347, SUSXM7, SUSXM15J1, SUS329J1, SUS329J3L, SUS329J4L, SUS405, SUS410L, SUS429, SUS430, SUS430LX, SUS430J1L, SUS434, SUS436L, SUS436J1L,SUS444, SUS445J1, SUS445J2, SUS447J1, SUSXM27, SUS403,SUS410, SUS410S, SUS420J1, SUS420J2, SUS440A

Product Specification

Finish	Thickness	Characteristics	Applications
No. 1	3.0mm~50.0mm	Finished by hot-rolling, annealing and pickling, characterized by white pickled surface	Chemical industry equipment, Industrial tanks
No. 2B	0.3mm~6.0mm	Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface	General Application Medical Instruments, Tableware
No. BA (Bright Annealed)	0.5mm~2.0mm	Bright heat treatment after cold rolling	Kitchen utensil, kitchen ware, architectural purpose
No. 4	0.4mm~3.0mm	Polishing with No. 150 to No.180 mesh abrasives. The most popular finishes	Milk & Food processing facilities, Hospital Equipment, Bath-tub
No. 8	0.5mm~2.0mm	A mirror-like reflective surface by polishing with finer abrasives over 800 mesh	Reflector, Mirror, Interior-Exterior decoration forbuilding
HL(Hair Line)	0.4mm~3.0mm	Finished by continuous linear polishing	Architectural purposes, escalators, kitchen ware vehicles

Chemical Composition

Grade	C	Si	Mn	P	S	Cr	Ni	Mo	Ti	N	Cu	Nb
201	≤0.15	≤1.0	5.50-7.50	≤0.05	≤0.03	16.00-18.00	3.50-5.50	-	-	0.05-0.25	-	-
202	≤0.15	≤1.0	7.50-10.00	≤0.05	≤0.03	17.00-19.00	4.00-6.00	-	-	0.05-0.25	-	-
301	≤0.15	≤1.0	≤2.0	≤0.045	≤0.03	16.00-18.00	6.00-8.00	-	-	≤0.1	-	-
302	≤0.15	≤1.0	≤2.0	≤0.035	≤0.03	17.00-19.00	8.00-10.00	-	-	≤0.1	-	-
303	≤0.15	≤1.0	≤2.0	≤0.2	≥0.15	17.00-19.00	8.00-10.00	≤0.6	-	≤0.1	-	-
304	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	17.00-19.00	8.00-10.00	-	-	-	-	-
304L	≤0.03	≤1.0	≤2.0	≤0.035	≤0.03	18.00-20.00	8.00-10.00	-	-	-	-	-
304H	0.04-0.1	≤1.0	≤2.0	≤0.035	≤0.03	18.00-20.00	8.00-10.00	-	-	-	-	-
304N	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	18.00-20.00	8.00-10.00	-	-	0.10-0.16	-	-
304J1	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	18.00-20.00	6.00-9.00	-	-	-	1.00-3.00	-
305	≤0.12	≤1.0	≤2.0	≤0.035	≤0.03	17.00-19.00	10.50-13.00	-	-	-	-	-
309S	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	22.00-24.00	12.00-15.00	-	-	-	-	-
310S	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	24.00-26.00	19.00-22.00	-	-	-	-	-
316	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	16.00-18.00	10.00-14.00	2.00-3.00	-	-	-	-
316L	≤0.03	≤1.0	≤2.0	≤0.035	≤0.03	16.00-18.00	12.00-15.00	2.00-3.00	-	-	-	-
316H	≤0.1	≤1.0	≤2.0	≤0.035	≤0.03	16.00-18.00	10.00-14.00	2.00-3.00	-	-	-	-
316N	≤0.03	≤1.0	≤2.0	≤0.035	≤0.03	16.00-18.00	10.00-14.00	2.00-3.00	-	0.10-0.16	-	-
316Ti	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	16.00-19.00	11.00-14.00	2.00-3.00	≥5C	-	-	-
317L	≤0.03	≤1.0	≤2.0	≤0.035	≤0.03	18.00-20.00	11.00-15.00	3.00-4.00	-	-	-	-
321	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	17.00-19.00	9.00-12.00	-	5C-0.7	-	-	-
347	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	17.00-19.00	9.00-12.00	-	-	-	-	10C-1.10
347H	≤0.1	≤1.0	≤2.0	≤0.035	≤0.03	17.00-19.00	9.00-12.00	-	-	-	-	8C-1.10
2205	≤0.03	≤1.0	≤2.0	≤0.035	≤0.03	21.00-24.00	4.50-6.50	2.50-3.50	-	0.08-0.20	-	-
2507	≤0.03	≤0.8	≤1.2	≤0.035	≤0.02	24.00-26.00	6.00-8.00	3.00-5.00	-	0.24-0.32	-	-
904L	≤0.02	≤1.0	≤2.0	≤0.045	≤0.03	19.00-23.00	23.00-28.00	4.00-5.00	-	-	1.00-2.00	-
C276	≤0.02	≤0.05	≤1.0	-	-	14.00-16.50	Other	-	-	-	-	-
Monel400	≤0.3	≤0.5	≤2.0	-	≤0.024	-	≥63	-	-	-	28-34	-
409L	≤0.03	≤1.0	≤1.0	≤0.035	≤0.03	17.00-19.00	-	-	-	-	-	-
410	≤0.15	≤1.0	≤1.0	≤0.035	≤0.03	11.50-13.50	-	-	-	-	-	-
410L	≤0.03	≤1.0	≤1.0	≤0.035	≤0.03	11.50-13.50	-	-	-	-	-	-
420J1	0.16-0.25	≤1.0	≤1.0	≤0.035	≤0.03	12.00-14.00	-	-	-	-	-	-
420J2	0.26-0.40	≤1.0	≤1.0	≤0.035	≤0.03	12.00-14.00	-	-	-	-	-	-
430	≤0.12	≤1.0	≤1.0	≤0.035	≤0.03	16.00-18.00	-	-	-	-	-	-
436L	≤0.025	≤1.0	≤1.0	≤0.035	≤0.03	16.00-19.00	-	-	-	-	-	-
439	≤0.03	≤1.0	≤1.0	≤0.035	≤0.03	16.00-18.00	-	-	-	-	-	-
440A	0.60-0.75	≤1.0	≤1.0	≤0.035	≤0.03	16.00-18.00	-	≤0.75	-	-	-	-
440B	0.75-0.95	≤1.0	≤1.0	≤0.035	≤0.03	16.00-18.00	-	≤0.75	-	-	-	-
440C	0.95-1.2	≤1.0	≤1.0	≤0.035	≤0.03	16.00-18.00	-	≤0.75	-	-	-	-
441	≤0.03	0.2-0.8	≤0.7	≤0.03	≤0.015	17.50-18.50	-	≤0.5	0.1-0.5	≤0.025	-	0.3+3C-0.9

We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.

Identification labels are tagged accordingto standard specification or customer’s instructions.

Special packing is available as per customer’s requirement.

Stainless Steel Coil Package

Stainless Steel Sheet / Stainless Steel Plate Package

Stainless Steel Strip Package

Shipment Package

Our company is based in Wuxi, gathering city of industrial stainless steel in China.

We specialized in stainless coils, sheets and plate, stainless steel pipe and fittings, stainless steel tubes, and also aluminum products and copper products.

Our products have been highly praised by our clients from Europe, America, the Middle East, African and Southeast Asia. We will offer competitive products and comprehensive service to customers.

Stainless Steel Grade: 201, 202, 202cu, 204, 204cu, 303, 304, 304L, 308, 308L, 309, 309s, 310, 310s, 316, 316L, 321, 347, 410, 416, 420, 430, 430F, 440, 440c,

Alloy Grade :Monel, Inconel, Hastolley, Duplex, Super Duplex, Titanium, Tantalum, High Speed Steel, Mild Steel, Aluminium, Alloy Steel, Carbon Steel, Special Nickel Alloys

In form of : Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Angles, Channels, Profiles, Wires, Wire Rods, Sheets, Plates, Seamless Pipes, ERW Pipes, Flanges, Fittings,etc.

Q1: What is stainless?

A: Stainless means no marks on the steel surface, or a kind of steel that is not damaged by air or water and that does not change color, spotless, resistant to staining, rusting, the corrosive effect of chemicals.

Q2: Does stainless mean no rusting?

A: No, stainless means not easy to get stained or rusty, it has speical ability to reisist staining, rusting and corrosion.

Q3: Do you supply stainless steel sheets?

A: Yes, we supply different types of stainless steel sheets, with thickness ranges from 0.3-3.0mm. and in different finishes.

Q4: Do you accept cut to length service?

A: Of course, customer’s satisfaction is our top priority.

Q5: If i have a small order, do you accept small order?

A: Not a problem, your concern is our concern, small quantities are accepted.

Q6: How can you guarantee your product quality?

A: First, from the very start, we have already implemented a spirit to their mind, that is quality is life, our professional workers and staffs will follow up every step till the goods packed well and shipped out.

Q7: Will you pack the products?

A: Professional people do professional packing, we have different types of packing optional to customers, economic one or better one.

Q8: What do you need to know from customer before accurate quotation?

A: For an accurate quotation, we need to know grade, thickness, size, surface finish, color and quantity of your order, and also the destination of the goods. Customized product information will be needed more, like drawing, layout and plan. Then we will offer competitive quotation with the above information.

Q9: What kind of payment term you accpet?

A: We accept T/T, West union, L/C.

Q10: If this is a small order, will you delivery the goods to our agent?

A: Yes, we are born to solve problems of our customers, we will get the goods safely to your agent’s warehouse and send you the pictures.

Q11: Do you just make flat sheet? I want to make a fabrication for my new project.

A: No, we mainly produce stainless steel flat sheet surface treatment, at the same time, we manufacture customized metal finished product as per customer’s drawing and plan, our technician will take care of the rest.

Q12: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Iran,
Turkey, Jordan, etc.
Q13: How can I get some samples?
A: Small samples in store and can provide the samples for free. Catalgue is available, most
patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q14: What is the delivery ?
A: Sample order’s delivery time is 5- 7 days. Container orders are about 15-20 days.

Q15: What is the application about your Products?
A: 1.elevator door/cabin or and escalator’s side-wall.
2.Wall cladding inside or outside meeting room/ restaurant.
3.Facade when cladding over something, like columns in the lobby.
4.Ceiling in the supermarket. 5.Decorative draws in some entertainment places.
Q16: How long Can You Guarantee for This Product/Finish?
A: Color guarantee for more than 10 years. Original materials quality certificate can
be provided.