Professional Welding & Fabrication Services in Tulsa, OK

A&K Manufacturing Services, LLC is a local small business consistently delivering quality welding services to our customers worldwide.

Call us at 918-202-3044 for more information!

P-Numbers Base Metal (Typical or Example) A&K Manufacturing Services welds all of the following materials unless other wise stated.
1 Carbon  Manganese  Steels (four Group Numbers) 
2 Not Used
3 Half Molybdenum or half Chromium, half Molybdenum (three Group Numbers)
4 One and a quarter Chromium, half Molybdenum (two Group Numbers)
5A Two and a quarter Chromium, one Molybdenum
5B Five Chromium, half Molybdenum or nine Chromium, one Molybdenum (two Group Numbers)
5C Chromium, Molybdenum, Vanadium (five Group Numbers)
6 Martensitic Stainless Steels (Grade 410, 415, 429) (six Group Numbers)
7 Ferritic Stainless Steels (Grade 409, 430)
8 Austenitic Stainless Steels

  •      Group 1 – Grades 304, 316, 317, 347
  •      Group 2 – Grades 309, 310
  •      Group 3 – High Manganese Grades
  •      Group 4 – High Molybdenum Grades
9A, B, C Two to four Nickel Steels
10A, B, C, F Various low alloy steels
10H Duplex and Super Duplex Stainless Steel (Grades 31803, 32750)
10I High Chromium Stainless Steel
10J High Chromium, Molybdenum Stainless Steel
10K High Chromium, Molybdenum, Nickel Stainless Steel
11A Various high strength low alloy steels (six Group Numbers)
11B Various high strength low alloy steels (ten Group Numbers)
12 to 20 Not Used
21 High Aluminum content (1000 and 3000 series)
22 Aluminum (5000 series – 5052, 5454)
23 Aluminum (6000 series – 6061, 6063)
24 Not Used
25 Aluminum (5000 series – 5083, 5086, 5456)
26 to 30 Not used
31 High Copper content
32 Brass
33 Copper Silicone
34 Copper Nickel
35 Copper Aluminum
36 to 40 Not Used
41 High Nickel content
42 Nickel, Copper – (Monel 500)
43 Nickel, Chromium, Iron – (Inconel)
44 Nickel, Molybdenum – (Hastelloy B2, C22, C276, X)
45 Nickel, Chromium
46 Nickel, Chromium, Silicone
47 Nickel, Chromium, Tungsten ( We do not weld )
47 to 50 Not Used
51, 52, 53 Titanium Alloys
61, 62 Zirconium Alloys ( We do not weld )
A&K Manufacturing Services, LLC

A&K Manufacturing Services, LLC