ASTM A179 Seamless Steel Tube
ASTM A179 Seamless Steel Tube is a seamless cold-drawn low-carbon steel tube for ASTM A179/ASME SA179 heat exchangers and condensers. It is a seamless steel tube for specific purposes. ASTM A179 Seamless Tube has a small wall thickness and is particularly suitable for tubular heat exchangers, condensers and similar heat transfer equipment.
Description
ASTM A179 Seamless Steel Tube is a seamless cold-drawn low-carbon steel tube for ASTM A179/ASME SA179 heat exchangers and condensers. It is a seamless steel tube for specific purposes. ASTM A179 Seamless Steel Tube has a small wall thickness and is particularly suitable for tubular heat exchangers, condensers and similar heat transfer equipment.
The outer diameter specifications of steel pipes specified in the ASTMA179/ASMESA179 standard are between 1/8 inch and 3 inches (i.e. 3.2 to 76.2 mm). ASTM A179 Seamless Steel Tube has become an ideal choice for heat exchangers, condensers and other equipment with its high yield strength and precise outer diameter size. Its excellent performance and wide application prospects make ASTM A179 Seamless Steel Tubes occupy an important position in the industrial field.
ASTM A179 Steel Tube also has good processing performance and corrosion resistance. ASTM A179 Seamless Steel Pipe is manufactured by cold drawing process, which makes the surface quality of the steel pipe high and the dimensional accuracy good. At the same time, the chemical composition of ASTM A179 Seamless Steel Pipes has been carefully formulated with low sulfur and phosphorus content, which improves its corrosion resistance. This makes ASTM A179 Seamless Steel Tube widely used in chemical, petroleum, natural gas and other fields.
Features of ASTM A179 Seamless Steel Tube:
ASTM A179 Seamless Steel Tube is an American standard low-carbon cold-drawn seamless steel tube, specifically designed for heat exchange equipment. Its core features include high thermal conductivity, precise dimensions, good plasticity, and wide temperature tolerance.
1. Material and Composition: Low-carbon steel (C 0.06%–0.18%, Mn 0.27%–0.63%, P/S ≤0.035%). ASTM A179 Seamless Steel Tube is roughly equivalent to, but not entirely the same as, domestically produced No. 10 high-quality carbon steel tube.
2. Mechanical Properties: Tensile strength ≥325 MPa, yield strength ≥180 MPa, elongation ≥35%, hardness ≤72 HRB.
3. Thermal Conductivity: Thermal conductivity approximately 45–50 W/(m·K), about 30%–35% higher than ordinary carbon steel tubes, suitable for high-efficiency heat exchange.
4. Dimensions and Surface: Cold-drawn ASTM A179 Seamless Steel Tube, outer diameter tolerance ±0.10 mm, wall thickness deviation ≤±10%, inner wall roughness Ra ≤0.8 μm, smooth surface without oxide layer.
5. Processing Condition: ASTM A179 Seamless Steel Tube is typically delivered annealed (+A) or normalized (+N), after stress relief heat treatment at temperatures above 650℃, with a microstructure of ferrite + pearlite.
6. Temperature and Corrosion Resistance: ASTM A179 Seamless Steel Tube is suitable for temperatures from -50℃ to 450℃, with short-term up to 480℃; its corrosion resistance in acidic, alkaline, and steam environments is superior to ordinary carbon steel pipes, but not stainless steel grade.
7. Forming and Inspection: Can be cold-bent, flared, and flattened without cracking; must pass 10.5 MPa water pressure, eddy current/ultrasonic testing (detecting defects ≥0.1mm), GB/T242 flaring test and GB/T246 flattening test.
Standards and Classifications
| Alloy steel pipe
Standard & Mate |
GB5310-2013 Standard: 20G,25MnG, 15MoG,15CrMoG, 20MoG, 12CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, 15CrMoG, 10CrMo910ASTM A209M/AS-209M Standard: A209T1/SA209 T1, A209 T1b/SA-209 T1b, A209T1a/SA209 T1a
ASTM A213M/ASME SA 213 M Standard: T2, T5, T9, T11, T12, T22, T23, T24, T91, T911, T92, T122 ASTM A333M/ASME SA-333/SA333M Standard: Gr1, Gr3, Gr4, Gr6, Gr7,Gr8, Gr9, Gr10, Gr11 ASTM A334M/ASME SA-334/SA334M Standard: Gr1, Gr3, Gr6, Gr7,Gr8, Gr9, Gr11 ASTM A335/ASME SA335 Standard: P1, P2, P5,P5b, P5c, P9, P11, P12,P21,P22,P23, P24, P91, P92 ASTM A519 Standard: 4118, 4130,4135,4137,4140 ASTM A691 Standard: GRADE 91, CM65, CM70, CM75, CMSH70, CMS75, CMSH80, ASTM A691 Standard GRADE 1/2 Cr, GRADE 1CR, GRADE 1 1/4 CR, 2 1/4 Cr, 3CR, 5CR, 9 CR DIN17175 Standard: ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910, 14MoV63,12Cr1MoV EN10216-2 Standard: P195GH, P235GH, P265GH, 13CrMo4-5, 10CrMo9-10, 16Mo3, 10CrMo5-5, X10CrMoVNb9-1 JIS G3458 Standard: STPA12, STPA20, STPA22, STPA23, STPA24, STPA25, STPA26 JIS G3441 Standard: SCR420 TK,SCM415 TK, SCM418 TK, SCM420TK, SCM430TK, SCM435TK, SCM440TK. NF A49-213/215 Standard: TU15D3, TU13CD4-04, TU10CD910, TUZ10CD505, Alloy C276 BS3059 Standard: S1-622-440, S2-622-440, S1-622-490, S2-622-490, S1-629-470, S2-629-470, S2-629-590 BS3604Standard: HFS625 CFS625 BS3606Standard: CFS625 |
| Alloy steel pipe Size | O.D: 6-760mm W.T: 1-80mm Fixed Length: 5.8m, 6m, 11.8m, 12m, or random length as required. |
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