30CrMo Seamless Steel Tube Alloy Pipe
30CrMo Seamless Steel Tube Alloy Pipe is a seamless pipe made of chromium-molybdenum alloy structural steel. It possesses high strength, high toughness, and good hardenability, and is commonly used in the manufacture of high-load mechanical parts and high-pressure pipelines. Its corresponding American standard grade is typically ASTM A519 GR.4130 Seamless Alloy Steel Tube, and the corresponding Japanese grade is SCM430 Seamless Alloy Steel Tube.
Description
30CrMo Seamless Steel Tube Alloy Pipe is a seamless steel pipe made of chromium-molybdenum alloy structural steel. It possesses high strength, high toughness, and good hardenability, and is commonly used in the manufacture of high-load mechanical parts and high-pressure pipelines. Its corresponding American standard grade is typically ASTM A519 GR.4130 Seamless Alloy Steel Tube, and the corresponding Japanese grade is SCM430 Seamless Alloy Steel Tube.
Characteristics of 30CrMo Seamless Steel Tube Alloy Pipe:
The core characteristics of 30CrMo Seamless Steel Tube Alloy Pipe are high strength, good toughness, and good hardenability. It also exhibits high temperature resistance, making it suitable for heavy-load, high-pressure, and high-temperature applications below 500℃. Its comprehensive mechanical properties far exceed those of ordinary carbon steel pipes, classifying it as a typical chromium-molybdenum quenched and tempered steel.
1. High Strength: After quenching and tempering, the tensile strength of 30CrMo Seamless Steel Tube Alloy Pipe can reach over 930MPa, and the yield strength ≥785MPa, enabling it to withstand large loads.
2. High Toughness: Elongation after fracture ≥12%, reduction of area ≥50%, impact energy ≥63J, with a good balance of strength and toughness.
3. Excellent Hardenability: Critical diameter for oil quenching is 15~70mm, resulting in uniform stress distribution on large cross-section workpieces, making them less prone to deformation and cracking.
4. High Temperature Resistance: 30CrMo Seamless Steel Tube Alloy Pipe maintains sufficient high-temperature strength below 500℃, suitable for high-temperature and high-pressure environments; however, its strength will significantly decrease when the long-term service temperature exceeds 500~550℃.
5. Good Low-Temperature Resistance: It can adapt to harsh temperature difference conditions.
Applications of 30CrMo Seamless Steel Tube Alloy Pipe:
30CrMo Seamless Steel Tube Alloy Pipe is mainly used in high-temperature, high-pressure, and high-strength industrial applications such as petrochemicals, power boilers, machinery manufacturing, and high-pressure vessels. Its core advantages are high strength and good toughness, and it maintains stable thermal strength below 500℃, making it particularly suitable for pressure-bearing and heat-resistant pipe fittings and equipment parts.
1. High-pressure fluid transportation: 30CrMo Seamless Steel Tube Alloy Pipe is used to transport oil, natural gas, and various chemical media, and can withstand high pressure and certain corrosive environments.
2. Key equipment components: 30CrMo Seamless Steel Tube Alloy Pipe is used to manufacture reactor piping, downhole drilling pipe fittings, valves, and pump bodies, etc.
3. High-pressure conduits: 30CrMo Seamless Steel Tube Alloy Pipe is used in chemical equipment containing nitrogen and hydrogen media for high-pressure conduits and welded parts with operating temperatures not exceeding 250℃.
4. Boiler piping: 30CrMo Seamless Steel Tube Alloy Pipe is used for heating surface tubes, economizers, superheaters, etc. in low-, medium-, and high-pressure boilers.
5. Steam Turbine Fasteners: 30CrMo Seamless Steel Tube Alloy Pipe is used to manufacture bolts, flanges, and nuts operating below 450℃. It is also commonly used for flanges subjected to high pressure below 500℃.
6. High-Stress Transmission Components: Used to manufacture spindles, gears, connecting rods, high-load bolts, etc. These parts require both high strength and high toughness.
7. Hydraulics and Engineering Machinery: Machining for automotive drive shafts, hydraulic components for engineering machinery, heavy-duty pins, etc., suitable for alternating load conditions.
8. Pressure Vessels: Used to manufacture CNG high-pressure cylinders, energy storage pressure vessels, etc., with a high pressure resistance safety factor.
9. Energy Equipment: Oilfield wellhead fittings, high-pressure pipelines for oil and gas transportation, etc.
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. |
Product Display
Packing & Delivery
Shipping By Sea
1. Standard packaging
2. Packaging according to customer requirements
