what is difference between A53 and A106 seamless steel pipes

by admin / Wednesday, 13 September 2017 / Published in Technology

• Specification of A53:Pipe, Steel, Blackand Hot-Dipped,Zinc-Coated, Seamless
•Material: ASTM A53 Grade B
• Dimension:ASME B36.10
• End connection: Plain / Bevelled / NPT threaded
•Surface: Bare / Black paint / Hot-dip galvanized coating
• Hydrostatic test: ASTM A53
• NDT testing: ASTM E309 Eddy current examination
ASTM E570 Flux leakage examination ASTM E213 Ultrasonic testing

ASTM A53 is Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service.
ASTM A106 is Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless1

A53 Pipe vs A106 Pipe – Applied Type of Pipe

A 53 can be welded seam or seamless depending on how it is specificed for purchase. It is a general steel pipe spec and covers galvanized pipe as well as black pipe.
A106 is a similar pipe in chemical composition but is intened for high temperature service (up to 750 Degs F). It is a seamless pipe.

Available Size of A106 seamless steel pipe

Size			Schedule 40 pipe			Schedule 80 pipe
NPS	DN	OD (mm)	T (mm)	Plain end mass(kg/m)	Test pressure (Mpa)	T (mm)	Plain end Mass(kg/m)	Test pressure (Mpa)	by
1/2″	15	21.3	2.77	1.27	17	3.73	1.62	17
3/4″	20	26. 7	2.87	1.69	17	3.91	2.20	17
1″	25	33.4	3.38	2.50	17	4.55	3.24	17	Cold drawn
1-1/4″	32	42.2	3.56	3.39	17	4.85	4.47	17
1-1/2″	40	48.3	3.68	4.05	17	5.08	5.41	17
2″	50	60.3	3.91	5.44	17	5.54	7.48	17
2-1/2″	65	73	5.16	8.63	17	7.01	11.41	17	6-5/8″ PQF
3″	80	88.9	5.49	11.29	17	7.62	15.27	17	6-5/8″ PQF
3-1/2″	90	101.6	5.74	13.57	16	8.08	18.63	19
4″	100	114.3	6.02	16.07	15	8.56	22.32	19
5″	125	141.3	6.55	21.77	13	9.53	30.97	19
6″	150	168.3	7. 11	28.26	12	10.97	42.56	19	10-3/4″ PQF
8″	200	219.1	8.18	42.55	11	12.70	64.64	17	10-3/4″ PQF
10″	250	273	9.27	60.29	10	15.09	95.97	16
12″	300	323.8	10.31	79.70	9	17.48	132.04	16
14″	350	355.6	11.13	94.55	9	19.05	158.11	15
16″	400	406.4	12. 7	123.31	9	21.44	203.54	15	20″ PQF
18″	450	457	14.27	155.81	9	23.83	254.57	15	20″ PQF
20″	500	508	15.09	183.43	9	26.19	311.19

Available Size of A53 seamless steel pipes

Size		Schedule 40 pipe				Schedule 80 pipe
NPS	DN	OD (mm)	T (mm)	Plain end mass(kg/m)	Test pressure (Mpa)	T (mm)	Plain end mass(kg/m)	Test pressure (Mpa)	by
1/2″	15	21.3	2.77	1.27	4.8	3.73	1.62	5.9	Cold drawn
3/4″	20	26.7	2.87	1.69	4.8	3.91	2.20	5.9
1″	25	33.4	3.38	2.50	4.8	4.55	3.24	5.9
1-1/4″	32	42.2	3.56	3.39	9	4.85	4.47	13.1
1-1/2″	40	48.3	3.68	4.05	9	5.08	5.41	13.1
2″	50	60.3	3.91	5.44	17.2	5.54	7.48	17.2	Hot rolled 6-5/8″ PQF mill
2-1/2″	65	73	5.16	8.63	17.2	7.01	11.41	17.2
3″	80	88.9	5.49	11.29	17.2	7.62	15.27	17.2
3-1/2″	90	101.6	5.74	13.57	16.3	8.08	18.63	19.3
4″	100	114.3	6.02	16.07	15.2	8.56	22.32	19.3	Hot rolled 10-3/4″ PQF mill
5″	125	141.3	6.55	21.77	13.4	9.53	30.97	19.3
6″	150	168.3	7.11	28.26	12.3	10.97	42.56	18.9
8″	200	219.1	8.18	42.55	10.8	12.70	64.64	16.8
10″	250	273	9.27	60.29	9.9	15.09	95.97	16
12″	300	323.8	10.31	79.70	9.2	17.48	132.04	15.7
14″	350	355.6	11.13	94.55	9	19.05	158.11	15.5	Hot rolled 20″ PQF mill
16″	400	406.4	12.7	123.31	9	21.44	203.54	15.3
18″	450	457	14.27	155.81	9	23.83	254.57	15.1
20″	500	508	15.09	183.43	9	26.19	311.19	15

Tagged under: A53 VS A106 seamless steel pipes

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