Investigation of the Effects of Submerged Arc Welding Process Parameters on the Mechanical Properties of Pressure Vessel Steel ASTM A283 Grade A

Table 3

Matrix of the welding and response factors for hardness and tensile strength.

Std. order	Run order	Current	Voltage	Travel speed	Hardness (HV)	Tensile strength (MPa)
1	22	260	28	10	246.47	527.5
2	3	260	28	10	244.21	530.2
3	31	260	28	10	247.60	534.5
4	19	260	28	11	241.57	521.2
5	1	260	28	11	247.30	523.8
6	13	260	28	11	243.07	528.5
7	30	270	28	10	259.67	534.3
8	6	270	28	10	254.67	539.2
9	33	270	28	10	261.47	533.5
10	2	270	28	11	236.87	519.4
11	20	270	28	11	234.37	522.3
12	23	270	28	11	239.17	516.4
13	32	280	28	10	257.57	513.4
14	10	280	28	10	252.77	515.6
15	14	280	28	10	258.03	512.2
16	29	280	28	11	224.07	514.4
17	5	280	28	11	227.80	509.6
18	34	280	28	11	229.03	510.2
19	11	260	33	10	235.75	528.2
20	18	260	33	10	232.37	523.1
21	15	260	33	10	238.03	528.4
22	26	260	33	11	234.43	513.8
23	35	260	33	11	239.37	519.8
24	4	260	33	11	235.67	514.2
25	21	270	33	10	255.07	543.1
26	28	270	33	10	250.57	538.2
27	9	270	33	10	257.87	542.0
28	25	270	33	11	250.17	521.1
29	17	270	33	11	253.97	525.3
30	36	270	33	11	249.53	520.9
31	7	280	33	10	252.87	527.4
32	24	280	33	10	247.10	528.2
33	16	280	33	10	255.60	526.1
34	27	280	33	11	250.27	544.7
35	8	280	33	11	246.17	540.9
36	12	280	33	11	251.87	546.1