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Seamless steel pipes
Seamless steel pipes,as the name suggests,are steel pipes without a seam or a weld-joint.Seamless steel pipe is a tubular section or hollow cylinder,usually but not necessarily of circular cross-section.Seamless steel pipes are mainly used for boiler and pressure vessel,automotive area,oil well,and equipment components.
ASTM A53 Grade B seamless steel pipes
Seamless steel pipes product details:
Size:
OD: 1/8″-24″
Wall thickness: 1.73mm-60mm;
Length: 2m/3m/4m/5.8m/6m/8m/9m/12m and other size according to the contract.
Pipe End: plain or threaded with socket or beveled with plastic caps
Surface: Lightly oiled,hot dip galvanized,electro galvanized,black,bare,varnish coating/anti rust oil,protective coatings (coal tar epoxy,fusion bonded epoxy-FBE, 2PE/3PE)
Packing: Plastic plugs in both ends,hexagonal bundles with several steel strips,wrapped in waterproof paper,PVC sleeve,and sackcloth with several steel strips,plastic caps,wooden case packing or client option.
Test: Chemical Component Analysis,Mechanical Properties (Ultimate tensile strength,Yield strength,Elongation), Technical Properties (Flattening Test,Bending Test,Hardness Test,Impact Test), Exterior Size Inspection, Hydrostatic Test,NDT Test ( ET,UT,MT,PT,X-ray test )
Standards of seamless steel pipes:
| AISI standard ASTM standard |
ASTM A53 Gr.B | Black and hot-dipped zinc-coated steel pipes welded and seamless |
| ASTM A106 Gr.B | Seamless carbon steel for high temperature service | |
| ASTM SA179 | Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes | |
| ASTM SA192 | Seamless carbon steel boiler tubes for high pressure | |
| ASTM SA210 | Seamless Medium-carbon boiler and superheater tubes | |
| ASTM A213/A213M(ASME SA213/ SA213M)
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
Seamless alloy-steel boiler, superheater, and heat-exchanger tubes | |
| ASTM A269/ASME SA269
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
Seamless Austenitic Stainless Steel Tubing for General Service | |
| ASTM A312/A321M(ASME SA312/ SA312)
TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H |
Standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service. | |
| ASTM A333 GR3,GR6 | This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures | |
| ASTM A335 P9,P11,T22,T91 | Seamless ferritic alloy-steel pipe for high-temperature service | |
| ASTM A336 | Alloy steel forgings for pressure and high-temperature parts | |
| ASTM A511
MT304, MT304L, MT304H, MT310, MT310S, MT316, MT316L, MT317, MT317L, MT321, MT321H, MT347 |
Seamless Stainless Steel Mechanical Tubing | |
| ASTM SA519 4140/4130 | Seamless carbon for mechanical tubing | |
| ASTM A789 / A789M
S31803, S32205, S32750 |
Seamless Duplex Stainless Steel Tubing for General Service | |
| ASTM A790 / A790M
S31803, S32205, S32750 |
Seamless Duplex Stainless Steel Pipes | |
| API standard | API Spec 5CT J55/K55/N80/L80/P110/K55 | Seamless steel pipe for casing |
| API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 | Seamless steel pipe for line pipe | |
| DIN standard | DIN 17175 | Seamless steel tube for elevated temperature |
| DN 2391-1 | Seamless precision steel tubes | |
| DIN 1629 | Seamless circular tubes of non alloys steel with special quality requirement | |
| EN standard | EN 10208 | Seamless steel pipes for pipeline fluids |
| EN 10216
1.4301, 1.4307, 1.4541, 1.4401, 1.4404, 1.4571, 1.4878, 1.4432, 1.4462 |
Seamless Stainless Steel Tubes for Pressure Purposes | |
| JIS standard | JIS G3454,G3455,G3456 | Carbon steel pipe for pressure service |
| JIS G4303,G4304,G4305,G4312 | Stainless steel pipe | |
| GB standard | GB/T8162-2008 | Seamless steel pipe for structural purpose |
| GB/TB8163-2008 | Seamless steel pipe for liquid service | |
| GB/3087-1999 | Seamless steel tubes for low and medium boiler | |
| GB/5310-1995 | Seamless steel tubes for high pressure boiler | |
| GB/T5312-1999 C10, C20 | Seamless carbon steel marine tubes | |
| GB/6479-2000 | High-pressure seamless steel tubes for chemical fertilizer equipment |
We can also process seamless pipe orders to client provided specifications.
ASTM A106 seamless steel pipes
Chemical components and mechanical properties of seamless steel pipes:
| Standard | Grade | Chemical Components (%) | Mechanical Properties | ||||||
| C | Si | Mn | P | S | Tensile STrength(Mpa) | Yield STrength(Mpa) | |||
| ASTM A53 | A | ≤0.25 | – | ≤0.95 | ≤0.05 | ≤0.06 | ≥330 | ≥205 | |
| B | ≤0.30 | – | ≤1.2 | ≤0.05 | ≤0.06 | ≥415 | ≥240 | ||
| ASTM A106 | A | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥415 | ≥240 | |
| B | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥485 | ≥275 | ||
| ASTM SA179 | A179 | 0.06-0.18 | – | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | |
| ASTM SA192 | A192 | 0.06-0.18 | ≤0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | |
| API 5L PSL1 | A | 0.22 | – | 0.90 | 0.030 | 0.030 | ≥331 | ≥207 | |
| B | 0.28 | – | 1.20 | 0.030 | 0.030 | ≥414 | ≥241 | ||
| X42 | 0.28 | – | 1.30 | 0.030 | 0.030 | ≥414 | ≥290 | ||
| X46 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥434 | ≥317 | ||
| X52 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥455 | ≥359 | ||
| X56 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥490 | ≥386 | ||
| X60 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥517 | ≥448 | ||
| X65 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥531 | ≥448 | ||
| X70 | 0.28 | – | 1.40 | 0.030 | 0.030 | ≥565 | ≥483 | ||
| API 5L PSL2 | B | 0.24 | – | 1.20 | 0.025 | 0.015 | ≥414 | ≥241 | |
| X42 | 0.24 | – | 1.30 | 0.025 | 0.015 | ≥414 | ≥290 | ||
| X46 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥434 | ≥317 | ||
| X52 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥455 | ≥359 | ||
| X56 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥490 | ≥386 | ||
| X60 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥517 | ≥414 | ||
| X65 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥531 | ≥448 | ||
| X70 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥565 | ≥483 | ||
| X80 | 0.24 | – | 1.40 | 0.025 | 0.015 | ≥621 | ≥552 | ||
Our seamless steel pipe production is strictly regulated and all pipes in our stock have been fully tested to international standards to ensure that we only supply the best quality products.We also can supply welded steel pipes(ERW,SAW,SSAW,LSAW),galvanized steel pipes,casing pipes,butt welding pipe fittings,forged pipe fittings and forged flanges products,if you want to know more about our products,please email us:sales@haihaogroup.com