What is the difference between ASTM A179 pipe and DIN 17175 pipe ?

ASTM A179 (ASME SA179) Pipe Description

Cold drawn seamless carbon steel tube for heat exchangers and condensers
Size (mm): O.D.:6.0~114.0; W.T.:1~15; L: max 12000

Description：
1. Standards: ASTM A179 (ASME SA179)
2. Applications: heat exchangers, condensers, heat transfer equipment and similar pipes.
3. Grade: A 179
4. Specifications: diameter 10.3 to 76.2 mm; thickness: 1.2 to 12 mm; length: 6 m and above; and, modified specifications according to customer requirements.
5. Chemical composition and mechanical properties.

DIN 17175 Alloy pipe Description

Standard: DIN 17175
We can supply various grades of seamless boiler pipes, such as St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910, etc.

Size RangeThe size range of JST seamless steel boiler tube is as follows:

Outer dimension is from 6.0 mm to 219.0 mm.
Wall thickness of DIN 17175 seamless boiler pipe ranges from 1 mm to 30 mm.
The maximum length is 12 m.

This seamless boiler pipe can also be used as heating surface pipe, economizer, superheater, reheater and petrochemical industrial pipe for high-pressure boilers (The working pressure is above hunting for.8 Mpa in general and the working temperature is between 450℃ to 650℃. ).

ASTM A179 (ASME SA179) Pipe Chemical Composition:

Chemical Composition	C	Mn	P≤	S≤	Si≤
Chemical Composition	0.06-0.18	0.27-0.63	0.035	0.035	0.25

DIN 17175 Alloy pipe Chemical Composition:

Grade	Chemical Composition (%)
Grade	C	Si	Mn	P	S	Ni	Cr	Mo	Others
St35.8	0.17Max	0.10~0.35	0.40~0.80	0.040Max	0.040Max	–	–	–	–
St45.8	0.21Max	0.10~0.35	0.40~1.20	0.040Max	0.040Max	–	–	–	–
17Mn4	0.14~0.20	0.20~0.40	0.90~1.20	0.040Max	0.040Max	–	0.30Max	–	–
19Mn5	0.17~0.22	0.30~0.60	1.00~1.30	0.040Max	0.040Max	–	0.30Max	–	–
15Mo3	0.12~0.20	0.10~0.35	0.40~0.80	0.035Max	0.035Max	–	–	0.25~0.35	–
13CrMo910	0.10~0.18	0.10~0.35	0.40~0.70	0.035Max	0.035Max	–	0.70~1.10	0.45~0.65	–
10CrMo910	0.08~0.15	0.50Max	0.40~0.70	0.035Max	0.035Max	–	2.00~2.50	0.90~1.20	–
14MoV63	0.10~0.18	0.10~0.35	0.40~0.70	0.035Max	0.035Max	–	0.30~0.60	0.50~0.70	V: 0.22~0.32
X20CrMoV121	0.17~0.23	0.50Max	0.40~0.70	0.030Max	0.030Max	0.30~0.80	10.00~12.50	0.80~1.20	V: 0.25~0.35

ASTM A179 (ASME SA179) Pipe Mechanical Property:

Steel Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
ASTM A179	≥180	≥325	≥35

Mechanical Properties of Seamless DIN 17175Boiler Pipe:

Grade	Materia number	Tensile Test MPa or N/mm2			Remaks(Similar to JIS)	Possibility Temperature
		Min Yield point		Tensile Strength
		t 16Max	16<t 40Max	Tensile Strength
St35.8	1.0305	235	225	360~480	Impact Test at Room Temp.kgf-m (STPT38)
St45.8	1.0405	–	245	410~530	23.5(STPT410, STB410)
17Mn4	1.0481	–	275	460~580	22.8
19Mn5	1.0482	–	315	510~610	23.5(STB52)
15Mo3	1.5415	275	275	450~600	23.5
13CrMo910	1.7335	295	295	440~590	23.2(STPA22, STBA22)
10CrMo910	1.7380	285	285	450~600	23.2(STPA24, STBA24)
14MoV63	1.7715	325	325	460~610	24.2
X20CrMoV121	1.4922	490	490	690~850	23.5

ASTM A179 Seamless Tube Dimensions:

OD (mm)

Wall Thickness (mm)

2

2.5

3

3.5

4

4.5

5

6

6.5-7

7.5-8

8.5-9

9.5-10

11

12

Φ25-Φ28

●

Φ32

●

Φ34-Φ36

●

Φ38

●

Φ40

●

Φ42

●

Φ45

●

Φ48-Φ60

●

Φ63.5

●

Φ68-Φ73

●

Φ76

●

Φ80

●

Φ83

●

Φ89

●

Φ95

●

Φ102

●

Φ108

●

Φ114

●

Φ121

●

Φ127

●

Φ133

●

Φ140

●

Φ146

●

Φ152

●

Φ159

●

Φ168

●

SA-450/SA-450M:

OD In (mm)	+	–	WT In (mm)	+	–
<1(25.4)	0.10	0.10	≤1.1/2(38.1)	20%	0
1∼1.1/2(25.4∼38.1)	0.15	0.15	>1.1/2(38.1)	22%	0
>1.1/2∼<2(38.1∼50.8)	0.20	0.20
2∼<2.1/2(50.8∼63.5)	0.25	0.25
2.1/2∼<3(63.5∼76.2)	0.30	0.30
3∼4(76.2∼101.6)	0.38	0.38
>4∼7.1/2(101.6∼190.5)	0.38	0.64
>7.1/2∼9(190.5∼228.6)	0.38	1.14