|
Steel tube type |
Steel pipe size mm | Allowable deviation | |||
| Regular grade | senior | ||||
| Hot rolled tube | D | ≤ 159 | ± 1.0% ( The minimum value for ± 0.5mm ) | ± 0.75% ( The minimum value for ± 0.3mm ) | |
| > 159 | ± 1.0% | ± 0.90% | |||
| S | < 3.5 | + 15% ( The minimum value for + 0.48mm - 10% - 0.32mm ) | ± 10% ( The minimum value for ± 0.2mm ) | ||
| 3.5~20 | +15%-10% | ±10% | |||
| > 20 | D < 219 | ± 10% | ±7.5% | ||
| D ≥ 219 | +12.5%-10.0% | ±10% | |||
| Cold drawn tube | D | ≤ 30 | ± 0.20mm | ± 0.15mm | |
| > 30~50 | ± 0.30mm | ± 0.25mm | |||
| > 50 | ±0.8% | ±0.6% | |||
| S | 2~3 | +12%-10% | ±10% | ||
| > 3 | ±10% | ±7.5% | |||
|
Grade |
Chemical composition, % | ||||||||||
| C | Si | Mn | Cr | Mo | V | W | Nb | Ni | P | S | |
| 10 |
0.07
~0.14 |
0.17
~0.37 |
0.35
~0.65 |
- | - | - | - | - | - | ≤0.030 | ≤0.030 |
| 20 |
0.17
~0.24 |
0.17
~0.37 |
0.35
~0.65 |
- | - | - | - | - | - | ≤0.030 | ≤0.030 |
| 16Mn |
0.12
~0.20 |
0.20
~0.60 |
1.20
~1.60 |
- | - | - | - | - | - | ≤0.030 | ≤0.030 |
| 15MnV |
0.12
~0.18 |
0.20
~0.60 |
1.20
~1.60 |
- | - |
0.04
~0.12 |
- | - | - | ≤0.030 | ≤0.030 |
| 10MoWVNb |
0.07
~0.13 |
0.50
~0.80 |
0.50
~0.80 |
- |
0.60
~0.90 |
0.30
~0.50 |
0.50
~0.90 |
0.06
~0.12 |
- | ≤0.030 | ≤0.030 |
| 12CrMo |
0.08
~0.15 |
0.17
~0.37 |
0.40
~0.70 |
0.40
~0.70 |
0.40
~0.55 |
≤0.030 | ≤0.030 | ||||
| 15CrMo |
0.12
~0.18 |
0.17
~0.37 |
0.40
~0.70 |
0.80
~1.10 |
0.40
~0.55 |
- | - | - | - | ≤0.030 | ≤0.030 |
| 1Cr5Mo | ≤ 0.15 | ≤ 0.50 | ≤ 0.60 |
4.00
~6.00 |
0.40
~0.60 |
- | - | - | ≤ 0.60 | ≤0.030 | ≤0.030 |
| 12Cr2Mo |
0.08
~0.15 |
≤ 0.50 |
0.40
~0.70 |
2.0
~2.50 |
0.90
~1.20 |
- | - | - | - | ≤0.030 | ≤0.030 |
| 12SiMoVNb |
0.08
~0.14 |
0.50
~0.80 |
0.60
~0.90 |
- |
0.90
~1.10 |
0.30
~0.50 |
- |
0.04
~0.08 |
- | ≤0.030 | ≤0.030 |
|
roduct
|
Seamless Pipe
|
|
|
Seamless Pipe
|
China
|
GB/T8162/T8163 GB5310/6579/9948
|
|
U.S.A.
|
ASTM A53/A106/A178/A179/A192/A210/A213/A333/A335/A283/A135/A214/315/A500/A501/A519/A161/A334; API 5L/5CT
|
|
|
Japan
|
JIS G3452/G3454/G3456/G3457/G3458/G3460/3461/3462/3464
|
|
|
German
|
DIN 1626/17175/1629-4/2448/2391/17200 SEW680
|
|
|
Russia
|
GOST 8732/8731/3183
|
|
|
Material and Grade
|
China
|
10#, 20#, 16Mn, 20G, 15MoG, 15CrMo, 30CrMo,42Crmo, 27SiMn, 20CrMo
|
|
U.S.A.
|
Gr. B/Gr.A/A179/A192/A-1/T11/T12/T22/P1/FP1/T5/4140/4130
|
|
|
Japan
|
STPG38,STB30,STS38,STB33,STB42,STS49,STBA23,STPA25,STPA23
|
|
|
German
|
ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3,13CrMo44, 1.0309, 1.0305, 1.0405
|
|
|
Russia
|
10, 20, 35, 45, 20X
|
|
|
Out Diameter
|
10-1000mm
|
|
|
Wall Thickness
|
1-80mm
|
|
|
Length
|
1-12m
|
|
|
Protection
|
Plastic caps
|
|
|
Packing terms
|
Labeled and bundled together with steel strip
|
|
|
Shipment terms
|
Containers or bundles by sea,one 20" container can load about 20 tons(5.8meters long),one 40" container can load about
23-25tons(less than 11.8meters long) |
|
|
Quality Certificate
|
ISO, API, Mill Test Certificate
|
|
|
Surface Treatment
|
Black painting/varnished surface,anti-corrosion oil, galvanized or as per required by customer
|
|
|
Technique
|
Hot Rolled/Cold Drawn
|
|
Steel grades
|
Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500,
ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH ect. |
|
Standards
|
GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect.
|
|
Pipe ends
|
plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp,
or as customers' requirement |
|
treatment
|
|
|
Application
|
liquid delivery (pump well, gas, water), construction pipe, structural
pipe(greenhouse structure, fence post), curtain wall, machinery part ect. |
|
|
|
|
Delivery Time
|
10days from stock; 15-20days produced according to the qty
|
|
Payment Term
|
T/T or L/C
|
|
Price Term
|
CIF; CFR; FOB
|
|
Loading Port
|
Qingdao port Tianjin port Shanghai Port China
|
|
Grade |
Tensile strength, Mpa |
Yield point, Mpa |
Elongation min, % |
| 10 | 335~490 | 205 | 24 |
| 20 | 410~550 | 245 | 24 |
| 16Mn | 490~670 | 320 | 21 |
| 15MnV | 510~690 | 350 | 19 |
| 12CrMo | 410~560 | 205 | 21 |
| 15CrMo | 440~640 | 235 | 21 |