0,05 mm Tolérance DIN2391 St35-St52 Tube étiré au froid

Modèle NO .: HTSP DIN2391 Technique: Traitement de surface dessiné par froid: huilé Forme de la section: Acier rond Grade: St35; St45; St55; St52 Marque déposée: HTSP Origine: Chine Type: Matériau sans soudure: Acier au carbone Usage: Hydraulique / Automobile Pipe, Construction & Décoration Diamètre extérieur: 6-68mm Standard: DIN2391 Spécification: 6-68MM Code HS: 7304391000 Description du produit

Product Name	St35 steel pipe	St45 steel pipe	St55  steel pipe	St52 steel pipe
chemical analysis	C:≤0.18; P:≤0.05; S:≤0.05	C:≤0.25; P:≤0.05; S:≤0.05	C≈0.36; P:≤0.05; S:≤0.05	C:≤0.20; Si≤0.55;Mn≤1.5;P:≤0.05; S:≤0.05
Tensile Strength	+NBK,35-45MPa; +BK,≥45MPa;+BKW,≥38MPa;+GBK,≥32MPa	+NBK,45-55MPa; +BK,≥55MPa;+BKW,≥48MPa;+GBK,≥40MPa	+NBK,55-65MPa; +BK,≥65MPa; +GBK,≥50MPa	+BK,≥60MPa;+BKW,≥55MPa;
Yield strength	+NBK,≥24M Pa	+NBK,≥26MPa	+NBK,≥30MPa	-
Standard	DIN2391-1
Length	As customer's request
Packaging	Standard export packing, packed in woven bags, with two nylon slings, or can be customized as request
Heat Treatment/      Delivery Condition	Cold finished (hard)   BK(+C) Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation Cold finished (soft)    BKW(+LC) The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding) Cold finished and stress-relieved annealing BKS(+SR) Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. Annealed    GBK(+A) The last Cold forming process is followed by annealing in a controlled atmosphere. Normalized   NBK(+N) The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.
Delivery Time	Within 35-50 days from receiving deposit
Payment Term	100% L/C at sight or 30% deposit, 70% balance against copy of B/L
Usage/Application	Pipes for automobile and motorcycle
Main Market	Asia, Middle East, Europe, etc.

Product Name	St35 steel pipe	St45 steel pipe	St55  steel pipe	St52 steel pipe
chemical analysis	C:≤0.18; P:≤0.05; S:≤0.05	C:≤0.25; P:≤0.05; S:≤0.05	C≈0.36; P:≤0.05; S:≤0.05	C:≤0.20; Si≤0.55;Mn≤1.5;P:≤0.05; S:≤0.05
Tensile Strength	+NBK,35-45MPa; +BK,≥45MPa;+BKW,≥38MPa;+GBK,≥32MPa	+NBK,45-55MPa; +BK,≥55MPa;+BKW,≥48MPa;+GBK,≥40MPa	+NBK,55-65MPa; +BK,≥65MPa; +GBK,≥50MPa	+BK,≥60MPa;+BKW,≥55MPa;
Yield strength	+NBK,≥24M Pa	+NBK,≥26MPa	+NBK,≥30MPa	-
Standard	DIN2391-1
Length	As customer's request
Packaging	Standard export packing, packed in woven bags, with two nylon slings, or can be customized as request
Heat Treatment/      Delivery Condition	Cold finished (hard)   BK(+C) Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation Cold finished (soft)    BKW(+LC) The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding) Cold finished and stress-relieved annealing BKS(+SR) Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. Annealed    GBK(+A) The last Cold forming process is followed by annealing in a controlled atmosphere. Normalized   NBK(+N) The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.
Delivery Time	Within 35-50 days from receiving deposit
Payment Term	100% L/C at sight or 30% deposit, 70% balance against copy of B/L
Usage/Application	Pipes for automobile and motorcycle
Main Market	Asia, Middle East, Europe, etc.

Tolérance aux dimensions

Processing ways	Diameter	Length	Straightness	Degree of precision	Inner hole roughness
Cold rolled	30-100	≤12M	0.3-1.0	H8-H10	0.4-1.6
Cold drawn	30-250	≤12M		H8-H10	0.8-1.6
Honed	40-500	≤12M	1000	H8-H9	0.4-0.8
SRB	40-400	≤7M		H8	0.4

Inner diameter	Inner diameter tolerance		Wall thickness tolerance
	H8	H9
30	0.033	0.052	±5%
>30-50	0.039	0.062
>50-80	0.046	0.074
>80-120	0.054	0.087
>120-180	0.063	0.1
>180-250	0.072	0.115
>250-315	0.081	0.13
>315-400	0.089	0.14

Groupes de Produits : Tuyaux en acier de précision > Tuyau d'acier automobile