Api510 p numbers

API510- P Numbers My Self Study Notes

Fion Zhang/ Charlie Chong

ASME P Material Numbers This is a general guide ASME P numbers and their equivalent EN288 groupings. Groups referred to in the Base Metal column are ASME sub groups. EN288 material groups are included for comparison only.

Issues on non ASME material: http://www.twi.co.uk/technical-knowledge/faqs/material-faqs/faqcan-asme-ix-p-numbers-be-applied-to-non-asme-material/

P-Numbers- Fion Zhang/ Charlie Chong

P-NUMBERS ASME Section IX has assigned P-Numbers for base materials used under the ASME Code to reduce the number of required welding and brazing procedure qualifications (see ASME Section IX Table QW/QB-422 and Appendix D).

For ferrous base materials that have specified impact test requirements, Group Numbers have also been assigned within P-Numbers.

These assignments are based on comparable base material characteristics, such as composition, weldability, brazeability, and mechanical properties. These assignments do not mean that base materials may be substituted for a base material that was used in the qualification test without consideration of compatibility from a standpoint of metallurgical properties, post weld heat treatment, design, mechanical properties, and service requirements. Where notch toughness is a factor, it is considered that the base materials meet the specific requirements. The structure of P-Number assignments is based on the following:

http://engstandards.lanl.gov/esm/welding/vol1/GWS%201-07-Att.2-R1.pdf

P-Numbers- Fion Zhang/ Charlie Chong

P Number Summary: Base Material

Welding

Brazing

Steel and steel alloys

P No.1 through P No. 11, including P No. 5A, 5B, and 5C

P No. 101 through P No. 103

Aluminum and aluminumbased alloys

P No. 21 through P No. 25

P No. 104 and P No. 105

Copper and copper-based alloys

P No. 31 through P No. 35

P No. 107 and P No. 108

Nickel and nickel-based alloys

P No. 41 through P No. 47

P No. 110 through P No. 112

Titanium and titaniumbased alloys

P No. 51 through P No. 53

P No. 115

Zirconium and zirconiumbased alloys

P No. 61 and P No. 62

P No. 117

P-Numbers- Fion Zhang/ Charlie Chong

Group number?

Q5. ASME IX section QW-200.3 What does the assignment of a group number to a P-number indicate? (a) The base material is non-ferrous (b) Post-weld heat treatment will be required (c) The base material is a steel or steel alloy (d) Notch toughness requirements are mandatory

P-Numbers- Fion Zhang/ Charlie Chong

Steel and Steel Alloy: C-Mn / Cr-Mo Steel

ASME P No.

EN288

Base Metal

1

Carbon Manganese Steels, 4 Sub Groups Group 1 up to approx 65 ksi Group 2 Approx 70ksi Group 3 Approx 80ksi Group 4 ?



1







2

-

Not Used

3

4

3 Sub Groups:- Typically ½ Mo and ½ Cr ½ Mo

4

5

2 Sub Groups:- Typically 1¼ Cr ½ Mo

5A

5

Typically 2¼ Cr 1Mo

5B

5

2 Sub Groups:- Typically 5 Cr ½ Mo and 9 Cr 1 Mo.

5C

6

5 Sub Groups:- Chrome Molybdenum vanadium

P-Numbers- Fion Zhang/ Charlie Chong

Steel and Steel Alloy: Stainless Steel

ASME P No.

EN288

Base Metal

6

8

6 Sub Groups:- Martensitic Stainless Steels Typically Grade 410

7

8

Ferritic Stainless Steels Typically Grade 409

9

Austenitic Stainless Steels, 4 Sub groups Group1 Typically Grades 304, 316, 347 Group 2 Typically Grades 309, 310 Group 3 High manganese grades Group 4 Typically 254 SMO type steels



8







P-Numbers- Fion Zhang/ Charlie Chong

Steel and Steel Alloy: Ferrous Based-Duplex/Ni/Cr-Mo/HSLA

ASME P No.

EN288

Base Metal

9A, B, C

7

Typically two to four percent Nickel Steels

10A,B,C,F,G

?

Mixed bag of low alloy steels, 10G 36 Nickel Steel

10 H

10

Duplex and Super Duplex Grades 31803, 32750

10J

?

Typically 26 Chrome one Molybdenum

11A Group 1

7

9 Nickel Steels

11 A Groups 2 to 5 ?

Mixed bag of high strength low alloy steels.

11B

?

10 Sub Groups:-Mixed bag of high strength low alloy steels.

12 to 20

-

Not Used

P-Numbers- Fion Zhang/ Charlie Chong

ASME P No.

EN288

Base Metal

21

21

Pure Aluminum

22

22a

Aluminum Magnesium Grade 5000

23

23

Aluminum Magnesium Silicone Grade 6000

24

-

Not Used

22b

Aluminum Magnesium Manganese Typically 5083, 5086

25 26 to 30

P-Numbers- Fion Zhang/ Charlie Chong

Not used

ASME P No.

EN288

Base Metal

31

Pure Copper

32

Brass

33

Copper Silicone

34

Copper Nickel

35

Copper Aluminum

36 to 40

Not Used

P-Numbers- Fion Zhang/ Charlie Chong

ASME P No.

EN288

Base Metal

41

Pure Nickel

42

Nickel Copper:- Monel 500

43

Nickel Chrome Ferrite:- Inconel

44

Nickel Molybdenum:- Hastelloy C22, C276

45

Nickel Chrome :- Incoloy 800, 825

46

Nickel Chrome Silicone

47

Nickel Chrome Tungsten

47 to 50

Not Used

http://engstandards.lanl.gov/ESM_Chapters.shtml http://www.rcramer.com/shop/asme_pnumbers.shtml http://www.gowelding.com/wp/pnumbers.htm http://www.gowelding.com/wp/pnumbers.htm http://engstandards.lanl.gov/ESM_Chapters.shtml

P-Numbers- Fion Zhang/ Charlie Chong

ASME P No.

EN288

Base Metal

51, 52, 53

Titanium Alloys

61, 62

Zirconium Alloys

P-Numbers- Fion Zhang/ Charlie Chong

P-Numbers- Fion Zhang/ Charlie Chong

P-Numbers- Fion Zhang/ Charlie Chong