HIGH PERFORMANCE ALLOYS
Technical Information HASTELLOY ® C-276 Welding Data ALLOY DESCRIPTION HASTELLOY C-276 alloy is a solid solution, nickel-molybdenum-chromium, corrosion-resistant alloy. C-276 alloy has outstanding resistance to localized corrosion and to both oxidizing and reducing media. ®
C-276 alloy welding products are used: • as matching matching composition composition filler filler material for welding welding C-276 alloy wrought and cast products. • for dissimil dissimilar ar weldi welding ng C-276 alloy to nickel- or iron-based corrosion alloys. • for weld weld overla overlay y claddin cladding. g. C-276 alloy is suitable for most applications in the as-welded condition.
CHEMICAL COMPOSITION
SPECIFICATIONS
(Weight %)
UNS UNS - N10276 - plate, strip, sheet, wire UNS UNS - W80276 - electrodes electrodes AWS - A5.11, A5.11, ENiCrMoENiCrMo-4 4 AWS - A5.14, A5.14, ERNiCrMoERNiCrMo-4 4 ASME ASME - Table Table QW-422 QW-422 of ASME Section IX classifies N10276 as a P43 material. Table QW-432 of ASME Section IX classifies NiCrMo-4 as an F4 3 material.
STANDARD PRODUCT FORMS STRAIGHT LENGTH BARE WIRE 0.062", 0.094", 0.125" Dia. LAYER WOUND COIL 0.035", 0.045", 0.062" Dia. COATED ELECTRODE 3/32", 1/8", 5/32", 3/16" Dia.
1. 2. 3. H-2031D
C Mn Fe P S Si Cu Co Cr Mo V W Others Ni
AWS A5.14 ERNiCrMo-4 (GTAW, GMAW)
AWS A5.11 ENiCrMo-4 (SMAW)
0.02* 1.0* 4.0-7.0 0.04* 0.03* 0.08* 0.50* 2.5* 14.5-16.5 15.0-17.0 0.35* 3.0-4.5 0.50* BAL
0.02* 1.0* 4.0-7.0 0.04* 0.03* 0.2* 0.50* 2.5* 14.5-16.5 15.0-17.0 0.35* 3.0-4.5 0.50* BAL
* Maximum
FOR ADDITIONAL INFORMATION: "HASTE "HASTELLO LLOY Y C-276 C-276 alloy alloy - Wrou Wrought ght Prod Product uct", ", Bulle Bulletin tin H-20 H-2002. 02. "Fabricat "Fabrication ion of HASTELL HASTELLOY OY Corrosion Corrosion-Res -Resista istant nt Alloys", Alloys", Bulletin Bulletin H-2010. H-2010. "Wel "Weldi ding ng Fill Filler er Meta Metall Infor Informat matio ion" n",, Bulle Bulletin tin H-3 H-316 167. 7. ©
2004, Haynes International, Inc.
TYPICAL ALL WELD METAL TENSILE DATA*
TYPICAL WELD METAL V-NOTCH IMPACT STRENGTH (Room Temp.)
ULTIMATE TENSILE STRENGTH, Ksi (MPa)
YIELD STRENGTH AT 0.2% OFFSET, Ksi (MPa)
ELONGATION, PERCENT
WELDING PROCESS
TEST TEMP. °F (°C)
GTAW GMAW** SMAW
Room Room Room
114 (786) 110 (758) 111 (765)
74 (513) 68 (466) 71 (489)
50 57 47
GTAW SMAW
500 (260) 500 (260)
87 (600) 89 (614)
59 (407) 56 (386)
31 44
DENSITY (Room Temp.) 0.321 lb/in3 (8.89 gm/cm3)
GTAW SMAW
1000 (538) 1000 (538)
86 (593) 84 (579)
57 (393) 55 (379)
45 49
MELTING RANGE 2415-2500°F (1323-1371°C)
*1/2 in. (12.7 mm) thick,
GTAW SMAW GMAW
159 ft-lb (216 joules) 73 ft-lb (99 joules) 192 ft-lb (260 joules)
**Short arc mode
SUGGESTED PRACTICE • Establish safe working conditions prior to the start of welding. Areas to consider should include protection of personnel, ventilation, and welding in confined spaces. The recommendations of the American National Standard ANSI/ASC Z49.1, "Safety in Welding and Cutting", should be followed. • The welding surface and adjacent area on each side of the joint should be thoroughly cleaned and degreased prior to welding. • Oxy-acetylene welding and cutting are not recommended. • Covered electrodes used from an unopened can require no further drying. Unused electrodes should be stored in a temperature controlled oven held in the range 250-400°F (121-200°C). • Backing gas (100% argon) should always be used for the root pass when welding by either GTAW or GMAW. For SMAW, grinding of the back side of the root pass is necessary. • For optimum corrosion resistance of the finished weldment, excessive heat input should be avoided by: - minimizing weave bead techniques (i.e. use 'stringer' beads with some manipulation). - avoiding slow travel speeds, especially on thin parts. - controlling interpass temperatures, generally 200°F (93°C) or less. • For GTAW, a constant-current power supply equipped with a high frequency start and downslope control is recommended. Torches with gas diffuser lenses provide the optimum gas coverage. • Postweld stress relieving in the 1200°F (650°C) range is not recommended for HASTELLOY C-276 alloy. If required, solution heat-treatment of this material is accomplished at 2050°F (1121°C) for an appropriate time followed by a water quench or rapid air cool (depending on section thickness). • If shielding gases containing CO 2 are used during GMAW welding, grinding of the weld bead between each pass is recommended. • Water cooled torches are recommended for GMAW spray transfer and synergic transfer (above 120 amps) modes.
TYPICAL WELDING PARAMETERS - FLAT POSITION S M A W
ELECTRODE DIAMETER, in. (mm) 3/32 1/8 5/32 3/16
ARC VOLTAGE, volts
WELDING CURRENT, amps
22-24 22-24 22-25 24-26
55-75 80-100 125-150 150-180
(2.4) (3.2) (4.0) (4.8)
POLARITY: SMAW - DCRP - Electrode Positive G JOINT T THICKNESS, in. (mm) A W 1/32-1/16 (0.8-1.6) 1/16-1/8 (1.6-3.2) 1/8-1/4 (3.2-6.4) >1/4 (6.4)
TUNGSTEN ELECTRODE* DIAMETER, in. (mm) 1/16 1/16 or 3/32 3/32 or 1/8 3/32 or 1/8
(1.6) (1.6 or 2.4) (2.4 or 3.2) (2.4 or 3.2)
FILLER WIRE DIAMETER
WELDING CURRENT, amps
ARC VOLTAGE, volts
1/16" 1/16" or 3/32" 3/32" or 1/8" 3/32" or 1/8"
15-60 50-95 75-150 95-200
9-12 9-12 10-13 10-13
*2% Thoriated tungsten Shielding gas 100% argon, flow rate ~ 25 ft 3/hr (12 L/min)
POLARITY: GTAW - DCSP - Electrode Negative G M A W SHORT ARC
WIRE DIAMETER, in (mm)
SHIELDING* GAS
WELDING CURRENT, amps
ARC VOLTAGE, volts
TRAVEL SPEED in. / min (mm/s)
0.035 (0.9) 0.045 (1.1)
2, 3, 4, 5 2, 3, 4, 5
70-90 75-160
18-20 19-22
8-10 (3.4-4.2) 8-10 (3.4-4.2)
FIXED PULSE
0.045 (1.1)
2, 3, 4
120-150 Peak 250-300
18-20
10-15 (4.2-6.3)
VARIABLE PULSE (synergic)
0.035 (0.9) 0.045 (1.1)
2, 3, 4
50-125 100-175
-
10-15 (4.2-6.3) 10-15 (4.2-6.3)
SPRAY
0.045 (1.1)
1, 3
190-250
30-32
10-15 (4.2-6.3)
Flow Rate ~ 35 ft 3/hr (16 L/min) POLARITY: GMAW - DCRP - Electrode Positive
# 1 2 3 4 5
*ACCEPTABLE GMAW SHIELDING GASES Composition Tradename 100% argon 7 5% ar go n + 25 % h el iu m 89% argon + 10.5% helium + 0.5% CO2 NiCoBRITE TM 66.1% argon + 33% helium + 0.9% CO2 Helistar TM SS 90% helium + 7.5% argon + 2.5% CO2 Helistar A-1025 *Not necessarily in order of preference
HASTELLOY and NiCoBRITE are trademarks of Haynes International, Inc. Helistar is a trademark of Praxair Technology, Inc. Call Haynes International, Inc. 800-354-0806
STA NDARD PRODUCTS By B rand or Alloy Designation: H A S T E L L O Y ® Family of Corrosion-Resistant Alloy s B-2, B-3 ®, C-4, C-22 ®, C-276, C-2000 ®, D-205 ™, G-3, G-30 ®, G-35 ™, G-50 ®, and N
H A S T E L L O Y F a m i l y o f H e a t - Re s i s t a n t A l l o y s S, W, and X
H A Y N E S ® F a m i l y o f H e a t -R e s i s t a n t A l l o y s 25, R-41, 75, HR-120 ®, HR-160 ®, 188, 214™, 230®, 230-W ™, 242™, 263, 556 ™, 617, 625, 65SQ®, 718, X-750, MULTIMET®, and Waspaloy
C o r r o s i o n - W ea r R es i s t a n t A l l o y
W e a r -R e s i s t a n t A l l o y
ULTIMET®
6B
H A Y N E S T i t an i u m A l l o y T u b u l a r Ti-3Al-2.5V (All trademarks are owned by Haynes International, Inc.)
Standard Forms: Bar, Billet, Plate, Sheet, Strip, Coils, Seamless or Welded Pipe & Tubing, Pipe Fittings, Flanges, Fittings, Welding Wire, and Coated Electrodes
Properties Data: The data and information in this publication are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature, and are believed to be reliable. However, Haynes does not make any warranty or assume any legal liability or responsibility for its accuracy, completeness, or usefulness, nor does Haynes represent that its use would not infringe
upon private rights. Any suggestions as to uses and applications for specific alloys are opinions only and Haynes International, Inc. makes no warranty of results to be obtained in any particular situation. For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Material Safety Data Sheet supplied by Haynes International, Inc.
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