Alloy C276 

Nickel-Molybdenum-Chromium Based Super Alloy for Severe Environments 

Certified Standards 

UNS N10276 
W. St. 2.4819 
DIN NiMo16Cr15W 
ASTM B564 / B574 
ASME SB564 / SB574 
NACE MR01-03 
NACE MR01-75 
DIN ISO 15156 
ASTM A388 / A388M 
API 6A-PSL3 

Minimum mechanical properties 

Rp0.2% (yield) 
283MPa / 41KSI 
Rm (ultimate tensile) 
690 MPa / 100KSI 
Elongation (A4) 
40% 
Reduction of Area 
Report only 
Hardness (HRc) 
35 Max 
CHARPY IMPACT 
No requirements 

Alloy C276 Round Bar Size Range ex-stock 

Machined Round Bar - sawn to length if required 
For more information on our C276 product, to request a quote or to place an order, please contact our helpful sales team. 
dia. Metric (mm) 
dia. Imperial (inch) 
Tol. 
12.70 
0.500 
-0/+0.2 - k11 
15.88 
0.625 
-0/+0.2 - k11 
19.05 
0.750 
-0/+0.2 - k11 
22.23 
0.875 
-0/+0.2 - k11 
25.40 
1.000 
-0/+0.2 - k11 
31.75 
1.250 
-0/+0.2 - k11 
38.10 
1.500 
-0/+0.2 - k11 
44.45 
1.750 
-0/+0.2 - k11 
45.00 
1.772 
-0/+0.2 - k11 
50.80 
2.000 
-0/+0.3 - k11 
63.50 
2.500 
-0/+0.3 - k11 
76.20 
3.000 
-0/+0.3 - k11 
88.90 
3.500 
-0/+0.3 - k11 
101.60 
4.000 
-0/+0.3 - k11 
114.30 
4.500 
-0/+0.3 - k11 
130.00 
5.118 
-0/+0.5 - k11 
152.40 
6.000 
PLD k12 (+1) 
177.80 
7.000 
PLD k12 (+1) 
203.20 
8.000 
PLD k12 (+2) 
228.60 
9.000 
PLD k12 (+2) 
254.00 
10.000 
PLD k12 (+2) 
279.40 
11.000 
PLD k12 (+2) 
304.80 
12.000 
PLD k12 (+2) 
330.20 
13.000 
PLD k12 (+2) 
355.60 
14.000 
PLD k12 (+2) 
381.00 
15.000 
PLD k12 (+2) 
406.40 
16.000 
PLD k12 (+3) 
Note: Non stock items are available ex-mill, in short lead times. Please contact us with your enquiry. 
Intoco C276 Bar Tolerance Chart 

WANT MORE INFORMATION? 

For more information on our Alloy C276 product, to request a quote or to place an order, please contact our helpful sales team.