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Precision Seamless Steel Tube/Pipe

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Mild Steel 1010 Round Seamless Steel Pipe

Detailed Parameters

SPECIFICATION:



Standard & Material

Carbon Steel

ASTM A519 Standard

MT1010, MT1020, 1008, 1010, 1018, 1020, 1025, 1030, 1045, 1518

JIS G3445 Standard

STKM11A  STKM12A  STKM12B  STKM12C   STKM13A  STKM13B   STKM13C   STKM14A  STKM14B  STKM14C  STKM15A  STKM15C   STKM16A  STKM16C   STKM17A   STKM17C  STKM18A  STKM18B  STKM18C   STKM19A  STKM19C  STKM20A

JIS G3473 Standard

STC370, STC440, STC510A, STC510, STC540, STC590A, STC590B

DIN 2391 Standard

St 35, St45, St52

EN 10297-1 Standard

E235, E275, E315, E355, E470

EN 10305-1 Standard

E215, E235, E355

EN 10305-4 Standard

E215, E235, E355

BS 6323-3 Standard

HFS 3, HFS 4, HFS 5, HFS 8

NF A49-311

TU 37-b, TU 52-b, TU 56-b, TU XC35

Alloy Steel

ASTM A519 Standard

1345, 3140, 4130, 4135, 4140, 4150, 4320, 4340, 5120, 5130

JIS G3429 Standard

STH11, 12 STH21, 122 STH31

JIS G3441 Standard

SCR420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM440TK

Stainless Steel

ASTM A511 Standard

 MT304, MT304L, MT310S, MT316, MT316L, MT317, MT321, MT347,   MT403, MT410, MT431

ISO Standard

NACE MR-0175

 

 

Size

 

Size Range

Tolerance

OD

6-325mm

-0.035 -- +0.045mm

ID

2-250mm

±0.035mm

WT

1-32mm

depends on sizes

Length

random or fixed length

+0-3.5mm

Straightness

0.15:1000, 0.4:1000, 0.5:1000 1:1000 or customized

Surface Roughness

Ra 0.02—0.4μm

 

 

CHEMICAL COMPOSITION:


Steel Grade

C(%)

Si(%)

Mn(%)

P(%)

S(%)

Nb/V(%)

STKM11A

≤0.12

≤0.35

≤0.60

≤0.040

≤0.040

-

STKM12A

≤0.20

≤0.35

≤0.60

≤0.040

≤0.040

-

STKM12B

≤0.20

≤0.35

≤0.60

≤0.040

≤0.040

-

STKM12C

≤0.20

≤0.35

≤0.60

≤0.040

≤0.040

-

STKM13A

≤0.25

≤0.35

0.30~0.90

≤0.040

≤0.040

-

STKM13B

≤0.25

≤0.35

0.30~0.90

≤0.040

≤0.040

-

STKM13C

≤0.25

≤0.35

0.30~0.90

≤0.040

≤0.040

-

STKM14A

≤0.30

≤0.35

0.30~1.00

≤0.040

≤0.040

-

STKM14B

≤0.30

≤0.35

0.30~1.00

≤0.040

≤0.040

-

STKM14C

≤0.30

≤0.35

0.30~1.00

≤0.040

≤0.040

-

STKM15A

0.25~0.35

≤0.35

0.30~1.00

≤0.040

≤0.040

-

STKM15C

0.25~0.35

≤0.35

0.30~1.00

≤0.040

≤0.040

-


MECHANICAL PROPERTIES:


Steel Grade

Tensile Strength(N/mm²)

Yield Strength(N/mm²)

STKM11A

≥290

-

STKM12A

≥340

≥175

STKM12B

≥390

≥275

STKM12C

≥470

≥355

STKM13A

≥370

≥215

STKM13B

≥440

≥305

STKM13C

≥510

≥380

STKM14A

≥410

≥245

STKM14B

≥500

≥355

STKM14C

≥550

≥410

STKM15A

≥470

≥275

STKM15C

≥580

≥430


DELIVERY CONDITION:


+C(BK)

Cold drawn/hard.After the last cold forming,no heat treatment.

+LC(BKW)

Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass.

+SR(BKS)

Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.

+A(GBK)

After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.

+N(NBK)

Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere.

 

 

 


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