AWS
Classification

CHEMICAL SPECIFICATIONS

AWS A5.16

UNS
No

ASTM B348

C

O

N

H

Fe

Al

V

ERTi 1

R50100

GR 1

0.03

0.03-0.10

0.012

0.005

0.08

ERTi 2

R50120

GR 2

0.03

0.08-0.16

0.015

0.008

0.12

ERTi 3

R50125

GR 3

0.03

0.13-0.20

0.02

0.008

0.16

ERTi 4

R50130

GR 4

0.03

0.18-0.32

0.025

0.008

0.25

ERTi 5

R56400

GR 5

0.03

0.12-0.20

0.030

0.015

0.22

5.5-6.7

3.5-4.5

ERTi 7

R52401

GR 7

0.03

0.08-0.16

0.015

0.008

0.12

ERTi 9

R56320

GR 9

0.03

0.08-0.16

0.020

0.008

0.25

ERTi 23

R56408

GR5-ELI

0.03

0.03-0.11

0.012

0.005

0.20

5.5-6.5

3.5-4.5