BS EN 10217-7 Stainless Steel Welded Pipes for Pressure Purposes

Name: BS EN 10217-7 Stainless Steel Welded Pipes for Pressure Purposes
Brand: Wenzhou Kidy Pipeline Materials Co., Ltd.

BS EN 10217-7 Stainless steel welded pipes for pressure purposes are formed by cold working process and automatic welding. The specifications are 12-1219.2mm, the wall thickness is 1.24-30.96mm, and the surface is pickled; Suitable for liquid, particle, gas conveying pipelines, such as chemical, boiler, power, food and other fields.

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Specifications1 of BS EN 10217-7 Stainless Steel Welded Pipes for Pressure Purposes

Table 2- Chemical composition (cast analysis)_a of austenitic corrosion resisting steels, in % by mass
Steel grade		C max	Si	Mn	P max	S max	N	Cr	Cu	Mo	Nb	Ni	Ti	Others
Steel name	Steel number	C max	Si	Mn	P max	S max	N	Cr	Cu	Mo	Nb	Ni	Ti	Others
X2CrNi18-9	1.4307	0.030	≤1.00	≤2.00	0.040	0.015_b	≤0.10	17.5 to 19.5	-	-	-	8.0 to 10.0_C	-	-
X2CrNi19-11	1.4306	0.030	≤1.00	≤2.00	0.040	0.015_b	≤0.10	18.0 to 20.0	-	-	-	10.0 to 12.0	-	-
X2CrNiN18-10	1.4311	0.030	≤1.00	≤2.00	0.040	0.015	0.12 to 0.22	17.0 to 19.5	-	-	-	8.5 to 11.5	-	-
X5CrNi18-10	1.4301	0.070	≤1.00	≤2.00	0.040	0.015_b	≤0.10	17.0 to 19.5	-	-	-	8.0 to 10.5	-	-
X6CrNTi18-10	1.4541	0.080	≤1.00	≤2.00	0.040	0.015	-	17.0 to 19.0	-	-	-	9.0 to 12.0_d	5xC to 0.70	-
X6CrNiNb18-10	1.4550	0.080	≤1.00	≤2.00	0.040	0.015	-	17.0 to 19.0	-	-	10xC.to 1.00	9.0 to 12.0_d	-	-
X1CrNi25-21	1.4335	0.020	≤0.25	≤2.00	0.025	0.010	≤0.10	24.0 to 26.0	-	≤0.20	-	20.0 to 22.0	-	-
X2CrNiMo17-12-2	1.4404	0.030	≤1.00	≤2.00	0.040	0.015_b	≤0.10	16.5 to 18.5	-	2.0 to 2.5	-	10.0 to 13.0_e	-	-
X5CrNiMo17.12-2	1.4401	0.070	≤1.00	≤2.00	0.040	0.015_b	≤0.10	16.5 to 18.5	-	2.0 to 2.5	-	10.0 to 13.0	-	-
X1CrNiMoN25-22-2	1.4466	0.020	≤0.70	≤2.00	0.025	0.010	0.10 to 0.16	24.0 to 26.0	-	2.00 to 2.50	-	21.0 to 23.0	-	-
X6CrNiMoTi17-12-2	1.4571	0.080	≤1.00	≤2.00	0.040	0.015_b	-	16.5 to 18.5	-	2.00 to 2.50	-	10.5 to 13.5_c	5xC to 0.70	-
X6CrNiMoNb17-12-2	1.4580	0.080	≤1.00	≤2.00	0.040	0.015	-	16.5 to 18.5	-	2.00 to 2.50	10xC to 1.00	10.5 to 13.5	-	-
X2CrNiMoN17-13-3	1.4429	0.030	≤1.00	≤2.00	0.040	0.015	0.12to 0.22	16.5 to 18.5	-	2.50 to 3.0	-	11.0 to 14.0_d	-	-
X3CrNiMo17-13-3	1.4436	0.050	≤1.00	≤2.00	0.040	0.015_b	≤0.10	16.5 to 18.5	-	2.50 to 3.0	-	10.5 to 13.0_d	-	-
X2CrNiMo18-14-3	1.4435	0.030	≤1.00	≤2.00	0.040	0.015_b	≤0.10	17.0 to 19.0	-	2.50 to 3.0	-	12.5 to 15.0	-	-
X2CrNiMoN17-13-5	1.4439	0.030	≤1.00	≤2.00	0.040	0.015	0.12 to 0.22	16.5 to 18.5	-	4.0 to 5.0	-	12.50 to 14.5	-	-
X1NiCrMoCu31-27-4	1.4563	0.020	≤0.70	≤2.00	0.030	0.010	≤0.10	26.0 to 28.0	0.70 to 1.50	3.0 to 4.0	-	30.0 to 32.0	-	-
X1NiCrMoCu25-20-5	1.4539	0.020	≤0.70	≤2.00	0.030	0.010	≤0.15	19.0 to 21.0	1.20 to 2.00	4.0 to 5.0	-	24.0 to 26.0	-	-
X1CrNiMoCuN20-18-7	1.4547	0.020	≤0.70	≤1.00	0.030	0.010	0.18 to 0.25	19.5 to 20.5	0.50 to 1.00	6.0 to 7.0	-	17.5 to 18.5	-	-
X1NiCrMoCuN25-20-7	1.4529	0.020	≤0.50	≤1.00	0.030	0.010	0.15 to 0.25	19.0 to 21.0	0.50 to 1.50	6.0 to 7.0	-	24.0 to 26.0	-	-
X2NiCrATi32-20	1.4558	0.020	≤0.70	≤1.00	0.020	0.015	-	20.0 to 23.0	-	-	-	32.0 to 35.0	8X(C+N) to 0.60	Al: 0.15 to 0.45

A. Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.

B. For products to be machined a controlled sulphur content of 0.015 % to 0.030 % is permitted by agreement provided the resistance to corrosion is still satisfied for the intended purpose. Option 3:A sulphur content of 0.015 % to 0.030 % is specified.

C. Where for special reasons. e.g hot workabiliy it is necessary to minimize the deltaferrite content, or with the aim of low permeabiliy, the maximum nickel content may be increased by 0.50%.

D. Where for special reasons. e.g hot workabiliy it is necessary to minimize the deltaferrite content, or with the aim of low permeabiliy, the maximum nickel content may be increased by 1.00%.

E. Where for special reasons. e.g hot workabiliy it is necessary to minimize the deltaferrite content, or with the aim of low permeabiliy, the maximum nickel content may be increased by 1.50%.

Specifications2 of BS EN 10217-7 Stainless Steel Welded Pipes for Pressure Purposes

Table 3- Chemical composition (cast analysis)_a of austenitic creep resisting steels, in % by mass

Steel grade

P max

S max

Others

Steel name

Steel number

X6CrNi18-10

1.4948

0.04 to 0.08

≤1.00

≤2.00

0.035

0.015

≤0.10

17.0 to 19.0

8.0 to 11.0

X7CrNTi18-10

1.4940

0.04 to 0.08

≤1.00

≤2.00

0.040

0.015

≤0.10

17.0 to 19.0

9.0 to 13.0

5x(C+N) to 0.80

X7CrNiNb18-10

1.4912

0.04 to 0.10

≤1.00

≤2.00

0.040

0.015

≤0.10

17.0 to 19.0

10xC to 1.20

9.0 to 12.0

X6CrNTiB18-10

1.4941

0.04 to 0.08

≤1.00

≤2.00

0.035

0.015

17.0 to 19.0

9.0 to 12.0

5xC to 0.80

B; 0.001 5 to 0.005 0

X6CrNiMo17-13-2

1.4918

0.04 to 0.08

≤0.75

≤2.00

0.035

0.015

≤0.10

16.0 to 18.0

2.00 to 2.50

12.0 to 14.0

X5NiCrAlTi31-20(+RA)^b

1.4958(+RA)

0.04 to 0.08

≤0.70

≤1.50

0.015

0.010

19.0 to 22.0

≤0.50

≤0.10

30.0 to 32.5

0.20 to 0.50

Al: 0.20 to 0.50
Al+Ti: ≤0.70
Co:≤0.5
Ni+Co = 30.0 to 32.5

X8NiCrAlTi32-21

1.4959

0.05 to 0.10

≤0.70

≤1.50

0.015

0.010

19.0 to 22.0

≤0.50

30.0 to 34.0

0.25 to 0.65

Al: 0.20 to 0.65

X3CrNiMoBN17-13-3

1.4910

≤0.04

≤0.75

≤2.00

0.035

0.015

0.10 to 0.18

16.0 to 18.0

2.00 to 3.0

12.0 to 14.0

B; 0.001 5 to 0.005 0

X8CrNiNb16-13

1.4961

0.04 to 0.10

0.30 to 0.60

≤1.50

0.035

0.015

15.0 to 17.0

10xC to 1.20

12.0 to 14.0

X8CrNiMoVNb16-13

1.4988

0.04 to 0.10

0.30 to 0.60

≤1.50

0.035

0.015

0.06 to 0.14

15.5 to 17.5

1.10 to 1.50

10xC to 1.20

12.5 to 14.5

V; 0.60 to 0.85

X8CrNiMoNb16-16

1.4981

0.04 to 0.10

0.30 to 0.60

≤1.50

0.035

0.015

15.5 to 17.5

1.60 to 2.00

10xC to 1.20

15.5 to 17.5

X10CrNiMoMnNbVB15-10- 1

1.4982

0.06 to 0.15

0.20 to 1.00

5.50 to 7.00

0.035

0.015

14.0 to 16.0

0.80 to 1.20

0.75 to 1.25

9.0 to 11.0

V; 0.15 to 0.40
B; 0.003to 0.009

B. Recrystallizing annealed condition.

C. Including Ta.

Specifications3 of BS EN 10217-7 Stainless Steel Welded Pipes for Pressure Purposes

Table4 - Chemical composition (cast analysis)_a of austenitic-ferritic steels, in % by mass

Steel grade

C max

P max

S max

others

Steel name

Steel number

X2CrNiMoN22-5-3

1.4462

0.030

≤1.00

≤2.00

0.035

0.015

0.10 to 0.22

21.0 to 23.0

2.50 to 3.5

4.5 to 6.5

X2CrNiMoSi18-5-3

1.4424

0.030

1.40 to 2.00

1.20 to 2.00

0.035

0.015

0.05 to 0.10

18.0 to 19.0

2.50 to 3.0

4.5 to 5.2

X2CrNiN23-4

1.4362

0.030

≤1.00

≤2.00

0.035

0.015

0.05 to 0.20

22.0 to 24.0

0.10 to 0.60

3.5 to 5.5

X2CrNiMoN25-7-4

1.4410

0.030

≤1.00

≤2.00

0.035

0.015

0.20 to 0.35

24.0 to 26.0

3.00 to 4.5

6.0 to 8.0

X2CrNiMoCuN25-6-3

1.4507

0.030

≤0.70

≤2.00

0.035

0.015

0.15 to 0.30

24.0 to 26.0

1.00 to 2.50

2.70 to 4.0

5.5 to 7.5

X2CrNiMoCuWN25-7-4

1.4501

0.030

≤1.00

0.035

0.015

0.20 to 0.30

24.0 to 26.0

0.50 to 1.00

3.00 to 4.0

6.0 to 8.0

W: 0.50 to 1.00

Features of BS EN 10217-7 Stainless Steel Welded Pipes for Pressure Purposes

KIDY is a service-oriented enterprise, with regular steel grades and specifications available for long-term delivery of raw materials. The thickness grade and length of a single piece can be customized according to requirements, and special requirements can be made to order.

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