26CrMo4

【 oil casing appearance quality 】 (1) according to domestic casing SY/T6194-96 regulations, casing length uncertain feet, its scope 8 and 13 m. But not less than 6 m casing can provide, the amount shall not exceed 20%. (2) the surface casing shall not have folded, inside and outside send out lines, overburden bed separation grouting, crack, rolling fold and scarring. These defects shall be completely remove, and remove depth may not exceed 12.5% of the nominal thickness. (3) couplings have fold, the surface shall not send out lines, overburden bed separation grouting, crack, rolling fold, defects such as scar. (4) the casing and the hoop thread surface should be smooth, does not allow to have the burr, tear and enough to make thread interrupt effects of strength and closely connected to other defects.

【 oil casing chemical composition 】 (1) according to SY/T6194-96 regulations. Casing couplings and adopting the same steel grade. Sulphur content < 0.045%, phosphorus content < 0.045%. (2) according to the provisions of the GB222-84 samples from chemical analysis. According to the provisions of the relevant part of the GB223 chemical analysis. (3) American petroleum institute (ARISPEC5CT1988 edition rules. According to the latest version ASTME59 chemical analysis sample preparation, according to the latest version ASTME350 chemical analysis.

【 oil casing formula 】 [(outside diameter-wall thickness) * wall thickness] * 0.02466 = kg/m (every meters weight)

The main alloy steel elements have silicon, manganese, chromium, nickel, tungsten, molybdenum, vanadium, titanium, niobium and zirconium, cobalt, aluminum, copper, boron, rare earth, etc. Which vanadium, titanium, niobium and zirconium, etc in steel is strong carbide form elements, as long as there is enough carbon, in the right conditions, to shape their own carbide, when lack of carbon or in high temperature conditions, the one with atomic state into the crystallology; Mn, chromium, tungsten, molybdenum carbide form elements for, some of the atoms in the state to enter the crystallology, another part of form replacement type alloy cementite; Aluminum, copper, nickel, cobalt, silicon carbide is not formed elements, general with atomic state exists in the crystallology.

Alloy steel type many usually according to how much content alloy elements into low alloy steel (< 5%), the content of alloy steel (with the content of 5% ~ 10%), high alloy steel (content > 10%); According to quality into high quality alloy steel, alloy steel qualities; According to the characteristic and purpose and divided into alloy steel and stainless steel, acid, steel, wear-resisting steel, heat-resistant steel, alloy steel, rolling bearing steel, alloy spring steel and special performance steel (such as soft magnets, everlasting, no pumpbody magnets), etc.

In the steel in addition to iron, carbon and a small amount of inevitable silicon, manganese, phosphorus, sulfur elements, but also contains a certain amount of alloying elements, the steel alloy elements have silicon, manganese, molybdenum, nickel, luo, ", titanium, niobium, boron, lead, rare earth and the one or several, this steel that the system of alloy steel alloy steel, with their respective resource situation, production and use different and different conditions, foreign had development nickel, luo steel system, our country it found that by silicon, manganese, vanadium, titanium, niobium, boron, lead, rare earth primarily alloy steel system in the total output of steel alloy steel accounts for about of the more than ten, general is in the use of electric smelting in the alloy steel can be divided into 8 categories, they are: structural alloy steel, spring steel, bearing steel, alloy steel, high speed steel, stainless steel, heat-resistant not peeling steel, electrician use silicon steel.

The company is a sales and processing the integrated enterprise, now import materials has more than 15000 kinds of, such as:

Aluminum class: aluminum, aluminum belt, aluminium wire, aluminum bars, pure aluminum, aluminum tubes, square aluminium, aluminium, aviation with aluminum, hard aluminum, high strength aluminum, mirror aluminum, aluminum decorative pattern (1050 1100 5050) South Korea aluminum, aluminum alloy, hot firm aluminum plate (5052-H32 6061-T6), double paster aluminum, aluminum alloy stick, alloy aluminum plate. Southwest aluminum;

Copper kind: pure copper, without oxygen copper, lead brass, tin brass, aluminum brass, manganese brass and iron brass, nickel brass, silicon brass, tin bronze, aluminum bronze, beryllium bronze, silicon bronze, manganese bronze, white copper, manganese cupronickel, XinBai copper, aluminum cupronickel, copper alloy, brass band, brass tube, brass band, phosphorus copper strip, cupronickel, brass, copper, the copper wire, party article copper, phosphorus copper rods, Angle yellow tongbang, coil material copper, cup and copper, tungsten copper, LuoTong, copper, anti-wear copper, tungsten bronze, los bronze;

Stainless steel class: stainless steel tube, stainless steel bar, stainless steel wire, stainless steel belt, high temperature alloy steel, stainless steel seamless tube, alloy steel, alloy steel, high temperature alloy plate, stainless steel flat steel, welding wire, stainless steel, stainless steel double panels, 8 K face stainless steel, stainless steel wire, stainless steel wire rope, stainless steel universal buckle, chuck, stainless steel spring line, electrolysis line, stainless steel Angle steel, cutting stainless steel;

Pipe class: seamless tube, adornment tube, irregular pipe, health tube, industrial tube, embossedtubes, drawing tube, precision tube, stainless steel, 2 B surface, titanium, punching board, stainless steel capillary, thick wall tube, non-standard tube, decorative pattern plate, welded pipe, oil casing, high temperature resistant stainless steel tube;

Profile classes: party stick, hexagonal rods, round rods; FangTong, flat tong, Angle steel, flat steel, channel steel, industry, round steel, the color tile, range, C payments, h-beam;

This company all material specification complete, to provide various options, quality guarantee, the price is reasonable, welcome to telephone to consult with us!

The United States steel alloy parts such as brand:

A242 A440 A441 A529 A572 A588 A606 A607 A618 A633 A656 A690 A709 A715 A808 A812 A841 A871 Algotuf50 Algotuf50A Algotuf50R Algotuf60A Algotuf70 Algoma50R Armco High strength stremgth Armco High- -A242 Armco High-C-55................

The United States part spring steel and bearing steel:

A227 A679 A229 A228 A230 A231 A232 A878 A313 A631 A-286 A5698 A5699 X-750 LNCONE718 1050 A682 1074 1095 6455 9254 52100 5195 K19526 1070 M 5160 A485 4118 H 4320 H 4720 H 4820 H 8617 H 5120 H 8620 H 9310 H 3310 N 4320 4712 4820 8620 9310... .

Carbon friction resistance bearing steel:

1030 1040 1050 1541 1552 4130 4150 5140 5150 6150... ...

Space structure with steel:

6250 H 6255 6256 A 6260 K 6263 G 6264 G 6265 F 6267 C 6270 G 6274 K 6275 E 6276 F 6277 D 6278 6280 G 6281 F 6282 F 6308 A 3612 E...................

The stainless steel and heat resistant steel:

201-1 205 302 XM XM-19 XM-31 XM-14 XM-17 XM-18 XM-10 XM-11 XM-28 301 302 303 XM-5 303 SE XM-2 F56 F49................ . RA85H 253 MA 20 CB-3 20 MO-4 17-14-14 LN 44 LN DP-3 3 RE60 S30100 S30200 S31400 S30424 S30215................ .

AL6XN S40500 S40900 S42900 S43000 430 F 430 TI S32950 431 420 422 431 440 A 440 B 440 C... .

The French alloy steel grades:

34 CrMo4RR 35 B3RR 42 CrMo4RR 50 CrV4RR 55 Si7RR 75 Ni8RR 100 Cr6RR

P265NJ2 P265NJ4 P285NJ2 P345NJ2 P345NG2 P345NGJ4 P40NGJ2 P40NGJ4

P400NJ4 P460NJ2 25 CrMo4 25 CrMoS4 28 Mn6 30 CrNiMo8 34 Cr4 34 CrMo4 34 cR

Part of the structural steel grades are as follows:

AF34C10 AF37C12 AF42C20 AF50C30 AF50S AF55C35 AF65C40 C40RR C45RR C50RR C60RR C68RR C75RR C90RR C100RR C125RR 15CR2RR 16MnCr5RR 20MnB5RR 25B30RR 25Mn4RR 30MnB5RR C10E C10RC15E C15R C16E C16R 10NiCr5-4 14NiCr13-4 15NiCr3 16MnCr5 16MnCrB5 16MnCrS5 16NiCr4 16NiCrS4 17Cr3 17CrNi6-6 17CrS3 17NiCrMo6-4 17NiCrMoS6-4 18CrMo4 18CrMoS4 18CrNiMo7-6 18NiCr6-4 20MnCr5 20MnCrS5 20MoCr3 20MoCr4 20MoCrS3 20MoCrS4 20NiCrMoS2-2 20NiCrMoS6-4 20CrMoS3 28Cr4 28CrS4 C22E C22R C25E C25R C30E C35R C40E C40R C45R C50R C55E C55R C60E C60R……… 21 CrMoV5-11 X20CrMoV12-1-5 and 20 MnMoNi4 MnMoV6-4 15 NiCuMoNb5 CrMo9-10 11 10 CrMo9-10 28 NiCrMo4 40 CrMoV-7 24 CrMoV5-5 21 CrMoV5-7 P235GH P265GH C22G2 P295GH P355GH Ck35 Ck45 19 Mn5 21 Mn6 16 Mo3 22 Mo4 1.5419 16 Mo5 1.5423 21 MoV5-3 1.5405 17 MoV8-4 1.5406 14 MoV6-3 1.7715 16 CrMo4-4 1.7337 13 CrMo4-4 13 CrMo4-5 1.7335 24 CrMo5 16 CrMo4 1.7242 14 CrMoV6-3 1.7715 1.5423 22 CrMo44-4 1.7350 15 Mo3

Germany part alloy steel grades are as follows:

S185 S235JR S235JRG1 S235JRG2 S235JO S235J2G3 S235J2G4 S275JR S275Jo S235J2G3 S275J2G4 S355JR S355Jo S355J2G3 S355J2G4 S355K2G3 S355K2G4 E295 E355 E360

Germany part tool steel grades such as:

C70W1 1.1520 1.1525 1.1545 1.1554 C80W1 C105W1 C110W1 C125W11 1.1563 1.1573 1.1620 1.1625 C135W1 C70W2 C80W2 C105W2 1.1645 1.1730 1.1740 1.1744 C45W C60W C67W C75W 1.1750 1.1820 1.1830 C55W C85

Germany part alloy steel brand such as:

125 125 75 1.2002 Cr1 Cr2 Cr1 1.2003 85 1.2004 14 Cr3/140 Cr1 Cr2 1.2008 90 1.2056 105 1.2057 145 Cr3 Cr4 Cr6 1.2063 102 1.2067 1.2080 1.2083 X210Cr12 Cr6 X42Cr13 X33CrS16 1.2085 62 1.2103 90 1.2101 SiMnCr4 58 SiCr8 CrSi 1.2108 105 CrSi5 1.2127 200 CrMn8 1.2129 21 MnCr5 1.2162 X165CrV12 1.2201 140 Crv1 1.2206 31 CrV3 1.2208 115 CrV3 1.2210 80 CrV2 1.2235 51 CrV4/51 CrMnV4 1.2241 59 CrV4 1.2242 61 CrSiV5 1.2243 and CrSiV8 1.2248

Pressure vessel with steel: 10 CrMo11 12 CrMo19-5 16 CrMo9-3 24 CrMo10 25 CrMO4 26 CrMo7 17 CrMoV10 20 CrMoV13-5................ ...

低合金结构钢和冷冲压用钢:StE255 S255N 1.0461 WStE255 P255 1.0462 TStE255 S255NL 1.0463 EStE255 S255NL1 1.1103 P275N StE285 1.0486 S275N 1.0490 S275NL 1.0491 P275NH WStE285 1.0487 P275NL1 TStE285 1.0488 P275NL2 EStE285 1.1104 StE315 P315N 1.0505 WStE315 P315NH 1.0506 TStE315 P315NL 1.0508 EStE315 S315NL1 1.1105 p355 Ste355 1.0562 P355N 1.0545 P355NL 1.0546 P355NH WStE355 1.0565 P355NL1 TStE355 1.0566 P355NL2 EStE355 1.1106 StE380 S380N 1.8900 WStE380 P380NH 1.8930 TStE380 S380NL 1.8910 EStE380 S380NL1 1.8911 S420N StE420 1.8902 WStE420 P420NH 1.8932 S420NL TStE420 1.8912 ESTE420 S420NL1 1.8913 P460N StE460 1.8905 S460N 1.8901 S460NL 1.8903 S460NH WStE460 1.8935 P460NL1 TStE460 1.8915 P460NL2 ESTE460 1.8918 STE500 S500N 1.8907 WStE500 P500NH 1.8937 TStE500 S500NL 1.8917 EStE500 S500NL1 1.8919 S315MC S340MC S355MC S380MC QStE420TM S420MC QStE460TM S460MC QStE500TM S500MC QStE550TM S550MC S600MC S650MC QStE260N S260NC QStE300N S315NC QStE340N S340NC QStE360N S355NC QStE380N S380NC QStE420N S420NC QSte460N S460NC QStE500N S500NC QStE550N S550NC 1.0972 1.0974 1.0976 1.0978 1.0980 1.0982 1.0984 1.0986 1.8969 1.8974 1.8976 1.0971 1.0973 1.0975 1.0977 1.0979 1.0981 1.0983 1.0985 1.0987。

高温结构用钢和低温钢:P235GH P235HI 1.0345 P265GH 1.0425 C22G2 1.0460 P295GH 17MN4 1.0481 P355GH 19MN6 1.0473 CK35 1.1181 CK45 1.1191 19MN5 P310GH 1.0482 21MN6 1.0485 16MO3 15MO3 1.5415 22MO4 1.5419 16MO5 1.5423 21MOV5-3 1.5404 17MOV8-4 1.5406 14MOV6-3 1.7715 16CRMO4 1.7242 24CRMO5 1.7258 13CRMO4-5 13CRMO4-4 1.7335 16CRMO4-4 1.7337 22CRMO4-4 1.7350 10CRMO9-10 1.7380 11CRMO9-10 1.7383 28NiCrMo4 1.6513 40CrMoV-7 1.7711 24CrMoV5-5 1.7733 21CrMoV5-7 1.7709 21CrMov5-11 1.8070 X20CrMoV12-1 1.4922 17MnMoV6-4 1.5413 15NiCuMoNb5 1.6368。

German DIN-EN standard low-temperature steel: 20 MN6 1.1169 1.5622 1.5633 Ni6 14 24 Ni8 12 Ni14 10 Ni14 1.5637 X12Ni5 12 Ni9 1.5680 1.5662 1.5663 X8Ni9 X7Ni9 11 MnNi5-3 MnNi6-3 1.6217 1.6212 and 1.6228 1.6349 NiMn6 15 X7NiMo6 26 CrMo4 1.7219 x2crNiN18-10-11-2 X2CrNiMoN17 1.4311 1.4406

表面硬化结构钢:C10 1.0301 C10Pb c10GPb 1.0302 C15 1.0401 C15Pb c15GPb 1.0403 C10E 1.1121 C15E 1.1141 C16E 1.1148 10NiCr5-4 1.5805 14NiCr10 1.5723 14NiCr14 15NiCr3 1.5752 14NiCr18 1.5860 16NiCr4 1.5714 16NiCrS4 1.5715 18NiCr5-4 1.5810 17CrNi6-6 1.5918 15CrNi6 1.5919 18CrNi8 1.5920 20NiCrMo2-2 1.6523 21NiCrMo2 1.6526 17NiCrMo6-4 1.6566 17NiCrMoS6-4 1.6569 20NiXrMoS6-4 1.6571 18CrNiMo7-6 1.6587 17CrNiMo6 1.6587 14NiCrMo13-4 1.6657 13Cr2 1.7012 15Cr3 1.7015 17Cr3 1.7016 17CrS3 1.7014 20Cr4 1.7027 20Crs4 1.7028 28Cr4 1.7030 28CrS4 1.7036 16MnCr5 1.7131 16MnCrS5 1.7139 20MnCr5 1.7147 20MnCrS5 1.7149 16MnCrB5 1.7060 18CrMo4 1.7243 18CrMoS4 1.7244 15CrMo5 1.7262 23CrMoB3-3 1.7271 20CrMoS2 20CrMo2 1.7311 20MoCr3 1.7320 20CrMoS3 1.7319 20MoCrS4 1.7323 25MoCr4 1.7325 25MoCrS4 1.7326 22CrMoS3-5 1.7333。

Permeability nitrogen structural steel: 34 CrAl6 1.8504 and 1.8506 and 1.8507 CrAlS5 CrAlMo5 41 CrAlMo7 31 CrMo12 1.8515 1.8509 1.8519 CrMoV5 31 CrMoV9 15-9-1.8521-and 1.8523 CrMoV13 39 34 CrAlNi7 1.8550..

Hardening steel: Cf35 1.1185 C35G CF45 C45G 1.1193 CF53 C53G 1.1213 Cf70 C70G 40 37 MnSi5 MN4 1.1249 1.5122 1.7005 1.7043 Cr4 Cr2 45 38 42 Cr4 1.7045 1.7220 1.7223 CrMo4 34 41 CrMo4 49 CrMo4 1.7238 51 CrV4 50 CrV4 58 CrV4 1.8161 79 1.8159 83 1.6972 1.6971 Ni1 Ni1...... ...

The tempering structural steel: C22 1.0402 1.0406 1.0501 1.0528 C35 C25 C30 C40 1.0511 1.0503 1.0540 C45 C50 C55 1.0535 1.0601 1.1151 C25E CK22 C60 C22E CK25 1.1158 C30E CK30 1.1178 C35E CK35 1.1181 C40E CK40 1.1186 C45E CK45 1.1191 C50E CK50 1.1206 C55E CK55 1.1203 C60E CK60 1.1221 1.1157 90 Mn4 40 Mn4 1.1273 1.1133 1.1165 Mn5 20 30 Mn5 36 Mn5 1.1167 1.1170 1.3401 Mn6 28 X120Mn12 38 MnSi4 46 MnSi4 1.5121 1.5120 1.5122 1.5131 MnSi5 37 50 MnSi 53 MnSi4 1.5141 42 Mnv7 1.5223 36 NiCr6 1.5710 36 NiCr10 1.5736...