Product

Standard

Steel Grade

Size（mm）

Seamless steel tubes for low and medium pressure boiler

GB3087

ASME SA-106

10、20

SA-106A

φ19-φ159×2-18

High pressure seamless steel tubes for diesel engine

GB/T3093

10A、 20A 、Q345

outer diameter

φ6-φ10、inner diameter

φ2-φ4

(A class)

Cold-drawn shaped steel tubes

10、20、Q195-Q235

square, rectangle, ellipse

Cold-drawn or cold-rolled precision seamless steel tubes

GB/T3639

10、20、45

￠15-90*1-16

Seamless steel tubes for high pressure boiler

GB5310

20G、20MnG 、25MnG、

12Cr1MoVG、15CrMoG

 12Cr2MoG、12Cr2MoWVTiB

φ19-φ159×2-18

ASME SA-106

SA-106 B、106C

ASME SA-192

SA-192

ASME SA-209

SA-209T1、SA-209T1a、SA-209T1b

ASME SA-210

SA-210A-1,  SA-210C

ASME SA-213

SA-213 T2 、SA-213 T11、SA-213 T12 、SA-213 T22、SA-213 T23 、SA-213 T91、

ASME SA-335

SA-335 P2、SA-335 P12 SA-335  P22、 SA-335  P91

DIN  17175

St35.8、St45.8、17Mn4

19Mn5、15Mo3、13CrMo44

10CrMo910

JIS G3462

STBA12

Seamless multi-rifled steel tubes for high pressure boiler

GB/T20409 or  technical agreement

20G、25Mn、15rMoG、

SA-210A1、SA-210C、

SA-213 T2、SA-213 T12、SA-213 T22

 A: Φ28.6-63.5×6.38-9.0

B: Φ35-66.7×7.2-8.55

Carbon and carbon-manganese seamless steel tubes and pipes for ship

GB/T5312

320-460

φ19-φ159×2-18

High pressure seamless steel tubes for chemical fertilizer equipment

GB6479

10、20G、16Mn、15MnV

φ19-φ159×2-18

Seamless steel tubes for structure

GB/T8162

10、20、35、45、Q345

φ6-φ159×1-18

Seamless steel tubes for liquid service

GB/T8163

10、20、Q345

φ6-φ159×1-18

Seamless steel tubes for petroleum cracking

GB9948

10、20 、12CrMo、15CrMo

φ19-φ109×2-18

Seamless steel tubes for automotive axle housing

YB/T5035

45、45Mn2、40MnB、45MnB

φ76-121×7-15

Seamless steel tubes for diamond core drill

technical

agreement

DZ40-60

Φ28-89×2.25-6

Case pipe and oil pipe

SY/T6194

API spec5CT

J55 N80

φ60.32-139.7×4.24-17.45

Heat resistant steel tubes for push rod

GB1221

or  technical agreement

1Cr5Mo

￠30-133*7-14