ASTM A789 / A789M Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing

Type: Stainless Steel Pipes Certification: ISO, SGS, BV, AISI, ASTM Origin: China Standard: ASTM Shape: Round Product:  ASTM A789 / A789M Seamless and Welded Fettitic / Austenitic Stainless Steel Tubing 
Standard:  ASTM A789 / A789M
Grade:  S31803, S32205, S31500, S32550, S31200, S31260, S32001, S32304 etc.
Size:  OD (10-203.2mm) X WT (1.2-12.7mm) 
Application:  widely used in various industries, such as onshore and offshore oil and gas industry, chemical process industry, food industries, construction industry and transportation pipelines.

Chemical Composition

GRADE	C,max %		Ni %		Cr	Mo	N	Cu		Other
S31200	0.03		5.5/6.5		24/26	1.2/2.0	0.14/0.2	__		N 0.14/0.2
S31260	0.03		5.5/7.5		24/26	2.5/3.5	0.10/0.30	0.2/0.8		W 0.1/0.5
S31500	0.03		4.3/5.2		18/19	2.5/3.0	0.05/0.1			Mn 1.2/2.0
S31803	0.03		4.5/6.5		21/23	2.5/3.5	0.08/0.2
S32001	0.03		1.0/3.0		19.5/21.5	0.6	0.05/0.17	1		Mn 4.0/6.0
S32003	0.03		3.0/4.0		19.5/22.5	1.5/2.0	0.14/0.20
S32101	0.04		1.35/1.75		21/22	0.1/0.8	0.2/0.25	0.10/0.80		Mn4.0/6.0
S32205	0.03		4.5/6.5		22/23	3.0/3.5	0.14/0.2
S32304	0.03		3.0/5.5		21.5/24.5	0.05/0.6	0.05/0.2	0.05/0.6
S32520	0.03		5.5/8.0		23/25	3.0/5.0	0.2/0.35	0.5/3.0
S32550	0.04		4.5/6.5		24/27	2.9/3.9	0.1/0.25	1.5/2.5
S32707	0.03		5.5/9.5		26/29	4.0/5.0	0.3/0.5	≤1.0		Co 0.5/1.0
S32750	0.03		6.0/8.0		24/26	3.0/5.0	0.24/0.32	0.5
S32760	0.05		6.0/8.0		24/26	3.0/4.0	0.2/0.3	0.5/1.0		W 0.5/1.0
S32808	0.03		7.0/8.2		27/27.9	0.8/1.2	0.3/0.4			W 2.1/2.5
S32900	0.08		2.5/5.0		23/28	1.0/2.0
S32906	0.03		5.8/7.5		28/30	1.5/2.6	0.3/0.4	8		Mn 0.8/1.5
S32950	0.03		3.5/5.2		26/29	1.0/2.5	0.15/0.35
S39274	0.03		6.0/8.0		24/26	2.5/3.5	0.24/0.32	0.2/0.8		W 1.5/2.5
S39277	0.025		6.5/8.0		24/26	3.0/4.0	0.23/0.33	1.2/2.0		W 0.8/1.21

Mechanical Properties

GRADE	tensile strength(Mpa)	Yield strength (Mpa)	Elongation ≥, (%)	Hardness, <=              BR              HR
S31803	620	450	25	290	30.5
S32205	655	485	25	290	30.5
S31500	630	440	30	290	30.5
S32550	760	550	15	297	31.5
S31200	690	450	25	280	--
S31260	690	450	25	290	30.5
S32001	620	450	25	290	30
S39274	800	550	15	310	--
S32750	800	550	15	310	32
S32760	750-895	550	25	270	--
S32900	620	485	20	271	28
S32950	690	480	20	290	30.5
S39277	825	620	25	290	30
S32520	770	550	25	310	--

   
Tolerance:

OD Size in.(mm)	OD Tolerance (mm)	WT Tolerance (%)
<=1/2 (12.7)	±0.13	±15
>1/2 -1 1/2 (12.7-38.1)	±0.13	±10
>1 1/2 -3 1/2 (38.1-88.9)	±0.25	±10
>3 1/2 - 5 1/2 (88.9-139.7)	±0.38	±10
>5 1/2 -8 (139.7-203.2)	±0.76	±10

 

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