Changzhou Tengyue Stainless Steel Pipe Co.,Ltd-Stainless steel pipe Standard (Norm) DIN17456

Standard (Norm)

DIN 17456-85 GENERAL PUROSE SEAMLESS CIRCULAR STAINLESS STEEL TUBES
(DIN17456-85)

Nahtlose kreisformige Rohre aus unlegierten Stahlen fur

besonders hohe Anforderungen technische Lieferbedingungen

This standard, together with DIN 17440
DIN 17441, DIN 17457 and
DIN 1745 (July 1985 editions) supersedes DIN 17440, December 1972 edition

The subclauses marked with a single dot give specifications which are to be agreed upon at the time of ordering.
The subclauses marked with a two dots give specifications which optional and may be agreed upon at the time of ordering.

1. Field of application

1.1 This standard applies to general purpose seamless circular tubes and pipes (hereinaiter briefly referred to as tubes) made from the stainless steels listed in table 1. They are used. for example as construction tubing, a pipes for the fodd. pharmaceutical and automobile inoustries. and as pipes for domestic installation nd for decorative purposes.

Tubes conformming to ilre lequirernents o this stardard are intanded to be used on the basic of an 80% utilization of the permissble design stress in weld.

1.2 This standard does not apply to general purpose welded circular austenitic stainless steel tubes subject to special requiremnets (see DIN 17458).

Grade	Mfg. Process	Chemical composition(%)
Grade	Mfg. Process	C	Si	Mn	P	S	Ni	Cr	Mo	Others
X6CrTi12	S	0.08Max	-	-	-	-	-	10.5~12.5	-	Ti : 6】%C 1.00Max
X6CrAl13	S	0.08Max	-	-	-	-	-	12.0~14.0	-	Al : 0.010~0.30
X5CrNi1911	S	0.030Max	-	-	-	-	8.5~10.5	18.0~14.0	-	-
X6Cr17	S	0.08Max	-	-	-	-	-	15.5~17.5	-	-
X6CrTi17	S	0.08Max	-	-	-	-	-	16.0~18.0	-	Ti : 7】%C 1.20Max
X5CrNi1810	S	0.07Max	-	-	-	-	8.5~10.5	17.0~19.0	-	-
X2CrNi1911	S	0.03Max	-	-	-	-	10.5~12.5	18.0~20.0	-	-
X2CrNiTi1810	S	0.03Max	-	-	-	-	8.5~10.5	17.0~19.0	-	N : 0.12~0.22
X6CrNiTi1810	S	0.08Max	-	-	-	-	9.0~12.0	17.0~19.0	-	Ti : 5】%C 0.80Max
X5CrNiNB1810	S	0.08Max	-	-	-	-	9.0~12.0	17.0~19.0	-	Nb : 10Ti : 7】%C
X5CrNiMo17122	S	0.07Max	-	-	-	-	10.5~13.5	16.5~18.5	2.0~2.5	1.20Max%C 1.00Max
X2CrNiMo17132	S	0.030Max	-	-	-	-	11.0~14.0	16.5~18.5	2.0~2.5	-
X6CrNiMoTi17122	S	0.08Max	-	-	-	-	10.5~13.5	16.5~18.5	2.0~2.5	SUS321TB
X2CrNiMoN17133	S	0.030Max	-	-	-	0.25Max	11.5~14.5	16.5~18.5	2.5~3.0	-
X2CrNiMo18143	S	0.030Max	-	-	-	0.25Max	12.5~15.5	17.0~18.5	2.5~3.0	-
X5CrNiMo17133	S	0.07Max	-	-	-	0.25Max	11.0~14.0	17.0~18.5	2.5~3.0	-
X2CrNiMoN17135	S	0.030Max	-	-	-	0.25Max	12.5~14.5	16.5~18.5	4.0~5.0	-

Grade	Materia number	Tensile Test MPa or N/mm²		Remaks (Similar to JIS)	Possibility Temperature
Grade	Materia number	Min Yield point	Tensile Strength	Remaks (Similar to JIS)	Possibility Temperature
X6CrTi12	1.4512	190	390~560	-
X6CrAl13	1.4002	250	400~600	SUS405TP
X5CrNi1911	1.4006	250	450~650	-
X6Cr17	1.4016	270	450~650	-
X6CrTi17	1.4510	270	430~600	-
X5CrNi1810	1.4301	195	500~720	-
X2CrNi1911	1.4306	180	460~680	-
X2CrNiTi1810	1.4311	270	550~760	-
X6CrNiTi1810	1.4541	200	500~730	-
X5CrNiNB1810	1.4550	205	510~740	-
X5CrNiMo17122	1.4401	205	510~710	SUS316TB
X2CrNiMo17132	1.4404	190	490~690	SUS316HTB
X6CrNiMoTi17122	1.4571	210	500~730	SUS321TB
X2CrNiMoN17133	1.4429	295	580~800	-
X2CrNiMo18143	1.4435	190	490~690	-
X5CrNiMo17133	1.4438	205	510~710	-
X2CrNiMoN17135	1.4439	285	580~800	-

The data given in table 3 shall apply for the resistance of the steels to intercrystalline corrosion when tested as specified in subclause 6.5.4.

Steel grade		% by mass
Symbol 2)	Material number	C	Cr	Mo	Ni	Others 3
Ferritic steels
x6CrTi 12 X6CrTi 13 x10Cr 13 x6Cr 17 x6CrTi 17	1.4512 1.4002 1.4006 1.4016 1.4510	÷0.08 ÷0.08 0.08 to 0.12 ÷0.08 ÷0.08	10.5 to 12.5 12.0 to 14.0 12.0 to 14.0 15.5 to 17.5 16.0 to 18.0	- - - - -	- - - - -	Ti : 6x%C, up to 1.00 Al : 0.10 to 0.30 - - Ti : 7 x %C, up to 1.20
Austenitic steels
x5CrNi 1810 x2CrNi 1911 x2CrNi 1810 x6CrNiTi 1810 x6CrNiNb 1810	1.4301 1.4306 1.4311 1.4541 1.4550	÷0.07 ÷0.030 ÷0.030 ÷0.08 ÷0.08	17.0 to 19.0 18.0 to 20.0 17.0 to 19.0 17.0 to 19.0 17.0 to 19.0	- - - - -	8.5 to 10.5 10.0 to 12.5 8.5 to 11.5 9.0 to 12.0 9.0 to 12.0	- - N : 0.12 to 0.22 Ti : 5x %C, up to 0.80 Nb : 10 x %C, up to 1.00 4)
x5CrNiMo 17 122 x2CrNiMo 17 132 x6CrNiMoTi 17 122	1.4401 1.4404 1.4571	÷0.07 ÷0.030 ÷0.08	16.5 to 18.5 16.5 to 18.5 16.5 to 18.5	2.5 to 2.5 2.5 to 2.5 2.5 to 2.5	10.5 to 13.5 11.0 to 14.0 10.5 to 13.5	- - Ti : 5 x %C, up to 0.80
x2CrNiMoN 17 33 x2CrNiMo 18 143 x5CrNiMo 17 133	1.4429 1.4435 1.4438	÷0.030 ÷0.030 ÷0.07	16.5 to 18.5 17.0 to 18.5 16.5 to 18.5	2.5 to 3.0 2.5 to 3.0 2.5 to 3.0	11.5 to 14.5 12.5 to 15.0 11.0 to 14.0	N : 0.14 to 0.22; S÷ 0.025 S÷ 0.025 S÷ 0.025
x2CrNiMoN 17 135	1.4439	÷0.030	16.5 to 18.5	4.0 to 5.0	12.5 to 14.5	N : 0.12 to 0.22; S÷0.025
1) Elements not quoted in this table In respect of the Individual steel grakles shall not be added deliberately to the steel without the purchaser's consent, axcepllor the purpose of finishing the melt. Such elements shall in no way impair the usabiity or processability of the steel, e.g. its weldability, nor shall they affect the properties specified in this standard. 2) The symbols given in the December 1972 edition of DIN 17 440 may continue to be used during the period of validity of this standard (see table in the Explanatory notes). 3) Unless otherwise specified, P ÷ 0.045%, S ÷ 0.030%, Si ÷ 1.0%, for austenitic steels, Mn ÷ 2.0%, and for ferritic steels, Mn ÷ 1.0%. 4) Tantalum determined together with nlobium and expressed in the form of niobium content.

Table 2. Amounte by which the chamical composition in the product analysis may deviate from limit values specified for the cast analysis

Element	limit values specilied for the cast analysis as in table 1 % by mass	Permissible deviations 1) % by mass
Carbon (C)	÷0.030 > 0.030 ÷ 0.12	+ 0.005 【0.01
Silicon (Si)	÷1.0	+.05
Manganese (Mn)	÷ .0 > 1.0 ÷ 2.0	+0.03 +0.04
Phosphorus (P)	÷0.045	+0.005
Sufur (S)	÷0.030	+0.005
Nitrogen (N)	÷0.22	【0.01
Aluminium (Al)	÷0.30	【0.05
Chromium (Cr)	∶10.5 < 15.0 ∶15.0 ÷ 20.0	【0.15 【0.20
Molybdenum (Mo)	∶2.0 ÷ 5.0	【0.10
Nickel (Ni)	∶ 8.5 < 10.0 ∶ 10.0 ÷ 15.0	【0.10 【0.15
Nibium (Nb)	÷ 1.00	【0.05
Titanium (Ti)	÷ 1.20	【0.05
1) If everal product analyses are carried out for a single cast and if these elements show contents for a single element outside the range specified for the ast analysis, this content shall either exceed the permissible maximum content or be below the permissible minimum content, but not both at the ame time for one cast.

Table 3. Mechanical propertles of the steels at ambient temperature in the as dellvered condition specified in table 6 and their resistance to Intercrystalline corrosion (applicable to wall thicknesses up to 50 mm in the case of austenitic steel tubes and up to 5 mm in the case of ferritic steel tubes 1) 2)

Steel grade		Heat treatment condition 2)	Maxlmum HB or HV hardness 3)	Minimum yield stress or 0.2% proof stress N/С	Minimum 1% proof stress N/С	Tensile strength 2) N/С	Minimum elogation after fracture 2) (Lo=5do %		Resistance to intercrystalline corrosion 4)
Symbol	Material	Heat treatment condition 2)	Maxlmum HB or HV hardness 3)	Minimum yield stress or 0.2% proof stress N/С	Minimum 1% proof stress N/С	Tensile strength 2) N/С	Longit- udinal	Trans- veres	in the as delivered condition	after further processing by welding without heat treatment
Ferritic steels
X6 CrTi 12 X2 CrNi 1911 X2 CrNiN 1810 X6 CrNiTi 1810 X6 CrNiNb 1810	1.4512 1.4002 1.4006 1.4016 1.4510	Annealed	175 180 200 185 185	190 250 250 270 270	- - - - -	390 to 560 400 to 600 450 to 650 450 to 600 450 to 600	30 20 20 20 20	25 15 15 15 15	n.g. n.g. n.g. n.g. g.	n.g. n.g. n.g. n.g. g.
Austenitic steels
X5 CrNi 1810 X2 CrNi 1911 X6 CrNiNi 1810 X6CrNiTi 1810 7) X6CrNiTiNb 1810 8) X6CrNiNb 1810	1.4301 1.4306 1.4311 1.4541 7) 1.4541 8) 1.4550	Solution annealed and quenched		195 180 270 200 180 205	230 215 305 235 215 240	500 to 700 460 to 680 550 to 760 500 to 730 460 to 680 510 to 740	40 40 35 35 35 35	35 35 30 30 30 30	g. 6) g. g. g. g. g.	g. 8) g. g. g. g. g.
X5 CrNiMo 17 122 X2 CrNiMo 17 132 X6 CrNiMoTi 17 1227) X6CrNiMoTi 17 122 7) X6CrNiMoNb 17 122 8)	1.4401 1.4404 1.4571 7) 1.4571 8)	Solution annealed and quenched		205 190 210 190	240 225 245 225	510 to 710 490 to 690 500 to 730 490 to 690	40 40 35 35	30 30 30 30	g. 6) g. g. g.	g. 6) g. g. g.
X2CrNiMoN 17 133 X2CrNiMo 18 143 X5CrNiMo 17 133	1.4429 1.4435 1.4436	Solution annealed and quenched		295 190 205	330 225 240	580 to 800 490 to 690 510 to 710	35 40 40	30 30 30	g. g. g. 5)	g. g. g. 5)
X2CrNiMoN 17 135	1.4439	Solution annealed and quenched		285	315	580 to 800	35	30	g.	g.
1) For greater wall thicknesses, the values shall be specified by agreement. 2) The vlues specified do not apply for condition f described in table 6. For this condition, they shall be agreed at the time of ordering, if required. 3) Average value from three test pieces at ambient temperature. Only one individual value of the test unit may be less than this value by a maximum of 30%. 4) When tested in accordance with DIN 50 914, G. means existing up to the limit temperatures listed in the last column of table 4. 5) Only for wall thicknesses not exceeding 6 mm. 6) Not to be used for tubes manufactured by hot working or subjected to further processing. 7) To be used for tubes manufactured by hot working or subjected to further processing.

Table 4. Minimum yalues of elevated temperature 0.2% and 1% proof stresses and guldellne values for the limit lemperature in the case of Intercrystalline corroslve stress.

Steelgrade		Heat treatment condition	0.2% proof stress at a temperature, in∩, of											1% proof stress at a temperature, in∩, of											Limit temperature 1) ∩
Symbol	Material number		50	100	150	200	250	300	350	400	450	500	550	50	100	150	200	250	300	350	400	450	500	550
Symbol	Material number		N/П											N/П
Ferritic steels
x6CrAl 13 x10Cr 13	1.4002 1.4006	Annealed	240	235	230	225	225	220	210	195	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Austenitic steels
X5 CrNi 1810 X2 CrNi 1911 X2 CrNiN 1810 X6 CrNiTi 1810 2) X6 CrNiTi 1810 3) X6 CrNiNb 1810	1.4301 1.4306 1.4311 1.4541 2) 1.4541 3) 1.4550	Solution annealed and quenched	177 162 245 190 162 191	157 147 205 176 147 177	142 132 175 167 132 167	127 118 157 157 118 157	118 108 145 147 108 147	110 100 136 136 100 136	104 94 130 130 94 130	98 89 125 125 89 125	95 85 121 121 85 121	92 81 119 119 81 119	90 80 118 118 80 118	211 201 280 222 201 226	191 181 240 208 181 211	172 162 210 195 162 196	157 147 187 185 147 186	145 137 175 175 137 177	135 127 167 167 127 167	129 121 161 161 121 161	125 116 156 156 116 156	122 112 152 152 112 152	120 109 149 149 109 149	120 108 147 147 108 147	300 4) 350 400 400 400 400
X5 CrNiMo 17 122 X2 CrNiMo 17 132 X6 CrNiMoTi 17 122 2) X6CrNiMoTi 17 122 3)	1.4401 1.4404 1.4571 2) 1.4571 3) 1.4580	Solution annealed and quenched	196 182 202 182 206	177 166 185 166 186	162 152 177 152 177	147 137 167 137 167	137 127 157 127 157	127 118 145 118 145	120 113 140 113 140	115 108 135 108 135	112 103 131 103 131	110 100 129 100 129	108 98 127 98 127	230 217 234 217 240	211 199 218 199 221	191 181 206 181 206	177 167 196 167 196	167 157 186 157 186	156 145 175 145 175	150 139 169 139 169	144 135 164 135 164	141 130 160 130 160	139 128 158 128 158	137 127 157 127 157	300 4) 400 400 400 400
X2CrNiMoN 17 133 X2CrNiMo 18 143 X5CrNiMo 17 133	1.4429 1.4435 1.4436	Solution annealed and quenched	265 182 196	225 166 177	197 152 162	178 137 147	165 127 137	155 118 127	150 113 120	145 108 115	140 103 112	138 100 110	136 98 108	300 217 230	260 199 211	227 181 191	208 167 177	195 157 167	185 145 156	180 139 150	175 135 144	170 130 141	168 128 139	166 127 137	400 400 300 4)
X2CrNiMoN 17 135	1.4439	Solution annealed and quenched	260	225	200	185	175	165	155	150	-	-	-	290	255	230	210	200	190	180	175	-	-	-	400
1) Up to these temperatures, the material will, within 100000 hours, not have changed so as to show susceptibility tointercrystalline corrosion. 2) Not to be used for tubes manufactured by hot working or subjected to further processing. 3) To be used for tubes manufactured by hot working or subjected to further processing. 4) Only for wall thicknesses not exceeding 6 mm.

Table 5. Guldeline data for the heat treatment durlng fabrlcation and further processing of tubes and guldeline data for hot working as part of further processing

Steel grade		Heat treatment during fabrication and further processing of tubes		Hot working during further processing
Symbol	Material number	Recrysta llzation or solution nneaing temperature ∩	Type of cooling	Temperature ∩	Type of cooling
Ferritic steels
x6CrTi